WO2022206800A1 - 四氢萘啶化合物晶型、盐型及其制备方法 - Google Patents
四氢萘啶化合物晶型、盐型及其制备方法 Download PDFInfo
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/4375—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a six-membered ring having nitrogen as a ring heteroatom, e.g. quinolizines, naphthyridines, berberine, vincamine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
Definitions
- the invention relates to a crystal form, a salt form of a tetrahydronaphthyridine compound and a preparation method thereof, and their application in medicines for treating related diseases.
- PD-1 Programmed cell death 1
- CD279 is an important immunosuppressive molecule in the CD28/CTLA-4 receptor family. It is a membrane protein containing 268 amino acid residues and is widely expressed in T.
- PD-L1 is a protein encoded by the CD274 gene and mainly expressed on the surface of tumor cells, dendritic cells and macrophages.
- the PD-1/PD-L1 signaling pathway is activated, which in turn inhibits the activation of T cells, causing T cell inactivation and contributing to the immune escape of tumor cells.
- Another ligand of PD-1, PD-L2 is mainly expressed on the surface of dendritic cells, macrophages and B cells and is associated with inflammation and autoimmune diseases.
- PD-1 negatively regulates immune responses by binding to its ligand PD-L1 and dephosphorylating multiple key molecules in the TCR signaling pathway.
- the activation of PD-1/PD-L1 signaling pathway can avoid the surrounding tissue damage caused by excessive immune response, thereby reducing the occurrence of autoimmune diseases.
- the expressions of PD-1 and PD-L1 are abnormally increased, and tumor cells can successfully escape the recognition and detection of the immune system by the binding of these PD-L1 molecules to PD-1 on T cells. attack.
- PD-(L)1 mAb can block this "tumor immune escape mechanism" and restore the patient's own immune system's anti-cancer function.
- mAbs monoclonal antibodies
- FDA Food and Drug Administration
- Incyte's PD-L1 small molecule inhibitor INCB86550 (WO2018119263, WO2019191707) and Gilead's PD-L1 small molecule inhibitor GS-4224 (US20180305315, WO2019160882) ) has entered the clinical phase 2, and the small molecule PD-1/PD-L1 inhibitor of BMS benzyl phenyl ether (WO2015034820, WO2015160641) is in the preclinical research stage.
- small-molecule drugs can cross the cell membrane and act on intracellular targets, they have the advantages of convenient storage and transportation, low production cost, no immunogenicity, and usually oral administration. Therefore, research and development of small molecule blockers of PD-1/PD-L1 has broad application prospects.
- the present invention also provides compounds of formula (II)
- the present invention also provides Form A of the compound of formula (II), characterized in that its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.20°, 7.77 ⁇ 0.20° and 16.22 ⁇ 0.20°.
- the above-mentioned A crystal form is characterized in that its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.20°, 7.77 ⁇ 0.20°, 8.71 ⁇ 0.20°, 9.89 ⁇ 0.20° and 16.22 ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above-mentioned A crystal form has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.20°, 7.77 ⁇ 0.20°, 8.71 ⁇ 0.20°, 9.89 ⁇ 0.20°, 16.22 ⁇ 0.20°, 17.74 ⁇ 0.20°, 22.82 ⁇ 0.20° and 25.49 ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above-mentioned Form A has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.20°, 7.77 ⁇ 0.20°, and/or 8.71 ⁇ 0.20°, and/or 9.89 ⁇ 0.20°, and/or 11.47° ⁇ 0.20°, and/or 14.41° ⁇ 0.20°, and/or 16.22 ⁇ 0.20°, and/or 17.74 ⁇ 0.20°, and/or 19.67° ⁇ 0.20°, and/or 20.98° ⁇ 0.20°, and/or 22.82 ⁇ 0.20°, and/or 25.49 ⁇ 0.20°, and/or 28.15° ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above-mentioned A crystal form has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.20°, 7.77 ⁇ 0.20°, 8.71 ⁇ 0.20°, 9.89 ⁇ 0.20°, 11.47° ⁇ 0.20°, 14.41° ⁇ 0.20°, 16.22 ⁇ 0.20°, 17.74 ⁇ 0.20°, 19.67° ⁇ 0.20°, 20.98° ⁇ 0.20°, 22.82 ⁇ 0.20°, 25.49 ⁇ 0.20° and 28.15° ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above-mentioned A crystal form has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19 ⁇ 0.10°, 7.77 ⁇ 0.10°, 8.71 ⁇ 0.10°, 9.89 ⁇ 0.10°, 11.47° ⁇ 0.10°, 14.41° ⁇ 0.10°, 16.22 ⁇ 0.10°, 17.74 ⁇ 0.10°, 19.67° ⁇ 0.10°, 20.98° ⁇ 0.10°, 22.82 ⁇ 0.10°, 25.49 ⁇ 0.10° and 28.15° ⁇ 0.10°.
- the X-ray powder diffraction pattern of the above-mentioned A crystal form has characteristic diffraction peaks at the following 2 ⁇ angles: 4.19°, 7.77°, 8.71°, 9.89°, 11.47°, 14.41°, 16.22°, 17.74° °, 19.67°, 20.98°, 22.82°, 25.49° and 28.15°.
- the XRPD pattern of the above-mentioned crystal form A is shown in FIG. 1 .
- the XRPD pattern of the above-mentioned crystal form A is substantially as shown in FIG. 1 .
- the differential scanning calorimetry curve of the above-mentioned Form A has endothermic peaks onset at 31.2°C ⁇ 5°C and 148.7°C ⁇ 5°C.
- the DSC spectrum of the above-mentioned A crystal form is shown in FIG. 2 .
- the DSC spectrum of the above-mentioned Form A is substantially as shown in FIG. 2 .
- thermogravimetric analysis curve of the above-mentioned crystal form A has a weight loss of 1.77% at 130°C ⁇ 3°C, and a weight loss of 3.32% at 160°C ⁇ 3°C.
- the TGA spectrum of the above-mentioned A crystal form is shown in FIG. 3 .
- the TGA spectrum of the above-mentioned Form A is substantially as shown in FIG. 3 .
- the present invention also provides the B crystal form of the compound of formula (I)
- the X-ray powder diffraction pattern of the above-mentioned crystal form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52 ⁇ 0.20°, 9.40 ⁇ 0.20°, 14.94 ⁇ 0.20°, 16.10 ⁇ 0.20° and 22.86 ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above crystal form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52 ⁇ 0.20°, 9.40 ⁇ 0.20°, 12.93 ⁇ 0.20°, 14.94 ⁇ 0.20°, 16.10 ⁇ 0.20°, 19.06 ⁇ 0.20°, 19.89 ⁇ 0.20° and 22.86 ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above-mentioned Form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52 ⁇ 0.20°, 9.40 ⁇ 0.20°, and/or 7.47 ⁇ 0.20°, and/or 11.29 ⁇ 0.20°, and/or 12.93 ⁇ 0.20°, and/or 13.90 ⁇ 0.20°, and/or 14.94 ⁇ 0.20°, and/or 16.10 ⁇ 0.20°, and/or 19.06 ⁇ 0.20°, and/or 19.89 ⁇ 0.20 °, and/or 21.13 ⁇ 0.20°, and/or 22.86 ⁇ 0.20°, and/or 24.55 ⁇ 0.20°, and/or 25.25 ⁇ 0.20°, and/or 25.83 ⁇ 0.20°, and/or 26.23 ⁇ 0.20°, and/or 27.45 ⁇ 0.20°, and/or 34.58 ⁇ 0.2°.
- the X-ray powder diffraction pattern of the above-mentioned crystal form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52 ⁇ 0.20°, 7.47 ⁇ 0.20°, 9.40 ⁇ 0.20°, 11.29 ⁇ 0.20°, 12.93 ⁇ 0.20°, 13.90 ⁇ 0.20°, 14.94 ⁇ 0.20°, 16.10 ⁇ 0.20°, 19.06 ⁇ 0.20°, 19.89 ⁇ 0.20°, 21.13 ⁇ 0.20°, 22.86 ⁇ 0.20°, 24.55 ⁇ 0.20°, 25.25 ⁇ 0.20°, 25.83 ⁇ 0.20°, 26.23 ⁇ 0.20°, 27.45 ⁇ 0.20° and 34.58 ⁇ 0.20°.
- the X-ray powder diffraction pattern of the above crystal form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52 ⁇ 0.10°, 7.47 ⁇ 0.10°, 9.40 ⁇ 0.10°, 11.29 ⁇ 0.10°, 12.93 ⁇ 0.10°, 13.90 ⁇ 0.10°, 14.94 ⁇ 0.10°, 16.10 ⁇ 0.10°, 19.06 ⁇ 0.10°, 19.89 ⁇ 0.10°, 21.13 ⁇ 0.10°, 22.86 ⁇ 0.10°, 24.55 ⁇ 0.10°, 25.25 ⁇ 0.10°, 25.83 ⁇ 0.10°, 26.23 ⁇ 0.10°, 27.45 ⁇ 0.10° and 34.58 ⁇ 0.10°.
- the X-ray powder diffraction pattern of the above-mentioned crystal form B has characteristic diffraction peaks at the following 2 ⁇ angles: 6.52°, 7.47°, 9.40°, 11.29°, 12.93°, 13.90°, 14.94°, 16.10° °, 19.06°, 19.89°, 21.13°, 22.86°, 24.55°, 25.25°, 25.83°, 26.23°, 27.45° and 34.58°.
- the XRPD pattern of the above-mentioned B crystal form is shown in FIG. 4 .
- the XRPD pattern of the above-mentioned Form B is substantially as shown in FIG. 4 .
- the differential scanning calorimetry curve of the above-mentioned Form B has an onset of an endothermic peak at 145.2°C ⁇ 5°C.
- the DSC spectrum of the above-mentioned B crystal form is shown in FIG. 5 .
- the DSC spectrum of the above-mentioned Form B is substantially as shown in FIG. 5 .
- thermogravimetric analysis curve of the above-mentioned crystal form B has a weight loss of 0.77% at 150°C ⁇ 3°C.
- the TGA spectrum of the above-mentioned B crystal form is shown in FIG. 6 .
- the TGA pattern of the above-mentioned Form B is substantially as shown in FIG. 6 .
- the present invention also provides a method for preparing the crystal form of compound B of formula (I), comprising:
- the solvent is tetrahydrofuran, ethanol, isopropanol, acetonitrile, methanol/water (1:1), ethanol/water (1:1), acetonitrile/water (1:1), isopropanol/water (1:1) :1) or water.
- the present invention also provides the C crystal form of the compound of formula (I)
- the above-mentioned crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 8.75 ⁇ 0.20°, 15.15 ⁇ 0.20°, 17.50 ⁇ 0.20°, 22.94 ⁇ 0.20° and 25.04 ⁇ 0.20°.
- the above crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 8.75 ⁇ 0.20°, 15.15 ⁇ 0.20°, 17.50 ⁇ 0.20°, 18.77 ⁇ 0.20°, 22.94 ⁇ 0.20°, 25.04 ⁇ 0.20°, 26.20 ⁇ 0.20°, 37.65 ⁇ 0.20°.
- the above-mentioned crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 15.15 ⁇ 0.20°, 17.50 ⁇ 0.20°, and/or 8.39 ⁇ 0.20°, and/or 8.75 ⁇ 0.20°, and/or 11.32 ⁇ 0.20°, and/or 12.55 ⁇ 0.20°, and/or 13.74 ⁇ 0.20°, and/or 14.07 ⁇ 0.20°, and/or 17.03 ⁇ 0.20°, and/or 17.28 ⁇ 0.20°, and/or 18.07 ⁇ 0.20°, and/or 18.77 ⁇ 0.20°, and/or 19.70 ⁇ 0.20°, and/or 20.35 ⁇ 0.20°, and/or 21.56 ⁇ 0.20°, and/or 21.83 ⁇ 0.20° , and/or 22.54 ⁇ 0.20°, and/or 22.94 ⁇ 0.20°, and/or 23.33 ⁇ 0.20°, and/or 23.74 ⁇ 0.20°, and/or 24.56 ⁇
- the above crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 8.39 ⁇ 0.20°, 11.32 ⁇ 0.20°, 12.55 ⁇ 0.20°, 13.74 ⁇ 0.20°, 14.07 ⁇ 0.20°, 15.15 ⁇ 0.20°, 17.03 ⁇ 0.20°, 17.50 ⁇ 0.20°, 18.07 ⁇ 0.20°, 18.77 ⁇ 0.20°, 19.70 ⁇ 0.20°, 20.35 ⁇ 0.20°, 21.56 ⁇ 0.20°, 22.54 ⁇ 0.20°, 23.33 ⁇ 0.20°, 23.74 ⁇ 0.20°, 24.56 ⁇ 0.20°, 25.04 ⁇ 0.20°, 26.20 ⁇ 0.20°, 27.24 ⁇ 0.20°, 27.93 ⁇ 0.20°, 29.33 ⁇ 0.20°, 30.75 ⁇ 0.20°, 31.39 ⁇ 0.20°, 33.01 ⁇ 0.20°, 34.07 ⁇ 0.20°, 36.32 ⁇ 0.20°, 37.65 ⁇ 0.20°
- the above-mentioned crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 8.39 ⁇ 0.10°, 8.75 ⁇ 0.10°, 11.32 ⁇ 0.10°, 12.55 ⁇ 0.10°, 13.74 ⁇ 0.10°, 14.07 ⁇ 0.10°, 15.15 ⁇ 0.10°, 17.03 ⁇ 0.10°, 17.28 ⁇ 0.10°, 17.50 ⁇ 0.10°, 18.07 ⁇ 0.10°, 18.77 ⁇ 0.10°, 19.70 ⁇ 0.10°, 20.35 ⁇ 0.10°, 21.56 ⁇ 0.10°, 21.83 ⁇ 0.10°, 22.54 ⁇ 0.10°, 22.94 ⁇ 0.10°, 23.33 ⁇ 0.10°, 23.74 ⁇ 0.10°, 24.56 ⁇ 0.10°, 25.04 ⁇ 0.10°, 25.33 ⁇ 0.10°, 26.20 ⁇ 0.10°, 27.24 ⁇ 0.10°, 27.93 ⁇ 0.10°, 29.33 ⁇ 0.10°, 30.75
- the above-mentioned crystal form C its X-ray powder diffraction pattern has characteristic diffraction peaks at the following 2 ⁇ angles: 8.39°, 8.75°, 11.32°, 12.55°, 13.74°, 14.07°, 15.15°, 17.03°, 17.28°, 17.50°, 18.07°, 18.77°, 19.70°, 20.35°, 21.56°, 21.83°, 22.54°, 22.94°, 23.33°, 23.74°, 24.56°, 25.04°, 25.33°, 26.20° , 27.24°, 27.93°, 29.33°, 30.75°, 31.39°, 32.44°, 33.01°, 34.07°, 36.32°, 37.65°, 38.01°.
- the XRPD pattern of the above crystal form C is shown in FIG. 7 .
- the XRPD pattern of the above-mentioned crystal form C is substantially as shown in FIG. 7 .
- the differential scanning calorimetry curve of the above-mentioned crystal form C has an onset of an endothermic peak at 184.7°C ⁇ 5°C.
- the DSC spectrum of the above-mentioned C crystal form is shown in FIG. 8 .
- the DSC spectrum of the above-mentioned crystal form C is substantially as shown in FIG. 8 .
- thermogravimetric analysis curve of the above-mentioned crystal form C has a weight loss of 0.69% at 150°C ⁇ 3°C.
- the TGA spectrum of the above crystal form C is shown in FIG. 9 .
- the TGA pattern of the above-mentioned crystal form C is substantially as shown in FIG. 9 .
- the DVS isotherm pattern of the above-mentioned crystal form C is substantially as shown in FIG. 10 .
- the present invention also provides a method for preparing the crystal form of compound C of formula (I), comprising:
- the solvent is methanol, acetone, isopropyl acetate, acetone:isopropyl acetate (2:1) and the like.
- the present invention also provides a method for preparing the crystal form of compound C of formula (I), comprising:
- the solvent is acetone, isopropyl acetate and the like.
- the present invention also provides the use of the above compound or crystal form A or crystal form B or crystal form C or the crystal form B or crystal form C prepared according to the above method in the preparation of antitumor drugs.
- the compound of the present invention has good PK property and oral absorption rate, stable crystal form and good druggability.
- the compound of the present invention has a good inhibitory effect on the excessive activation of the PD-1/PD-L1 signaling pathway, thereby obtaining excellent tumor growth inhibitory activity.
- the intermediate compounds of the present invention can be prepared by a variety of synthetic methods well known to those skilled in the art, including the specific embodiments listed below, the embodiments formed by their combination with other chemical synthesis methods, and those skilled in the art.
- Well-known equivalents, preferred embodiments include, but are not limited to, the examples of the present invention.
- CD3OD stands for deuterated methanol
- CDCl3 stands for deuterated chloroform
- Test method About 10 mg of sample is evenly spread on a single crystal silicon sample pan for XRPD detection.
- Light tube voltage 45kV
- light tube current 40mA
- Test method Take a sample ( ⁇ 1mg) and place it in a DSC aluminum pot for testing. Under the condition of 10ml/min N2 , at a heating rate of 10°C/min, heat the sample from 25°C (room temperature) to 200°C (or 250°C).
- Thermogravimetric Analysis (Thermal Gravimetric Analyzer, TGA) method of the present invention
- Test method Take the sample (2 ⁇ 5mg) and put it in a TGA platinum pot for testing. Under the condition of 10ml/min N2 , at a heating rate of 10°C/min, heat the sample from room temperature to 350°C or lose 20% of the weight.
- Test conditions Take a sample (10-15 mg) and place it in the DVS sample tray for testing.
- the hygroscopicity evaluation is classified as follows:
- Hygroscopic classification ⁇ W% deliquescence Absorbs enough water to form a liquid Very hygroscopic ⁇ W% ⁇ 15% hygroscopic 15%> ⁇ W% ⁇ 2% slightly hygroscopic 2%> ⁇ W% ⁇ 0.2% No or almost no hygroscopicity ⁇ W% ⁇ 0.2%
- ⁇ W% represents the hygroscopic weight gain of the test product at 25 ⁇ 1°C and 80 ⁇ 2%RH.
- Fig. 1 is the XRPD spectrum of (II) compound A crystal form
- Fig. 2 is the DSC spectrogram of (II) compound A crystal form
- Fig. 3 is the TGA spectrum of (II) compound A crystal form
- Fig. 4 is the XRPD spectrum of (I) compound B crystal form
- Fig. 5 is the DSC spectrogram of (I) compound B crystal form
- Fig. 6 is the TGA spectrum of (I) compound B crystal form
- Fig. 7 is the XRPD spectrum of (I) compound C crystal form
- Fig. 8 is the DSC spectrogram of (I) compound C crystal form
- Fig. 9 is the TGA spectrogram of (I) compound C crystal form
- Figure 10 is the DVS isotherm spectrum of (I) Compound C crystal form.
- the present invention will be described in detail by the following examples, but it does not mean any unfavorable limitation of the present invention.
- the compounds of the present invention can be prepared by a variety of synthetic methods well known to those skilled in the art, including the specific embodiments enumerated below, embodiments formed in combination with other chemical synthesis methods, and those well known to those skilled in the art Equivalent to alternatives, preferred embodiments include, but are not limited to, the embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made to the specific embodiments of the present invention without departing from the spirit and scope of the invention.
- reaction solution was poured into 600 mL of water, and the pH was adjusted to 7 with sodium bicarbonate, extracted with dichloromethane (300 mL ⁇ 3), and the combined organic phases were washed with saturated brine (300 mL ⁇ 2). , and dried over anhydrous sodium sulfate.
- reaction solution was filtered through celite, the filtrate was poured into ice (1000 mL), and after stirring for 20 minutes, saturated ammonium chloride solution (1000 mL) was added, and the mixture was stirred for 30 minutes. mL) extraction and separation, the organic phase was washed with saturated sodium sulfite (2000 mL), washed with saturated brine (2000 mL), dried over sodium sulfate, filtered and concentrated to obtain the crude product.
- the crude product was stirred with 120 mL of methyl tert-butyl ether and 120 mL of n-heptane, filtered, and the filter cake was dried to obtain compound 5-2.
- reaction solution was poured into glacial hydrochloric acid (1 mol/L, 800 mL) to quench, extracted and separated, the aqueous phase was extracted with methyl tert-butyl ether (400 mL ⁇ 2), the organic phases were combined and saturated brine was used. (400 mL ⁇ 2) washed, dried over sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure to obtain compound 5-3.
- the crude product was subjected to preparative high performance liquid chromatography (chromatographic column: Xtimate C18 250 ⁇ 50 mm ⁇ 10 microns; mobile phase: mobile phase A: 0.05% ammonia solution by volume; mobile phase B: acetonitrile; B%: 15%-45%, 18 minutes) to isolate compound 5.
- the reaction solution was slowly pumped into a reactor containing 14 liters of saturated ammonium chloride aqueous solution in batches, and the liquids were separated, and the aqueous phase and the organic phase were collected respectively, washed with 14 liters of saturated brine, and the water was collected separately. Phase and organic phase, the organic phase was dried, filtered and concentrated to give a solid crude product.
- 4.2 liters of methanol was added to the reaction kettle, and then the solid crude product was added to continue stirring for 30 minutes. After filtration, the filter cake was washed twice with methanol, and the filter cake was vacuum-dried to constant weight to obtain compound 3.
- the temperature of the reaction kettle was adjusted to 20-25°C, 3.25 liters of water was added to the reaction kettle, and then 577.81 g of compound 5 (1.01 equiv.) and 790.97 g of potassium carbonate (3.01 equiv.) were added to the reaction kettle. Nitrogen replacement was carried out for 5 to 10 minutes, 13.72 g of dichlorobis(triphenylphosphine) palladium (0.01 equivalent) was added to the reaction kettle, and then the temperature of the reaction kettle was adjusted to 70 to 75 ° C and stirred for 12 hours at 70 to 75 ° C. .
- the reaction solution was cooled to room temperature, filtered, the filter cake was washed with 13 liters of ethyl acetate, 9.75 liters of water was added to the combined filtrate, and the layers were separated.
- the organic phase The combined organic phases were washed with 13 liters of 10% citric acid aqueous solution, and the layers were separated.
- the aqueous and organic phases were collected separately, and the aqueous phase was extracted twice with 13 liters of ethyl acetate.
- the organic phases were combined, washed with 6.5 liters of water, separated, and the aqueous and organic phases were collected separately.
- the crude product was dissolved in 18 liters of ethyl acetate and poured into the reaction kettle, and the palladium-removed modified silica gel was added to the reaction kettle, and stirred at 65 to 70°C for 16 hours, and then the reaction solution was filtered, The filter cake was washed with 36 liters of ethyl acetate, the washing liquid was spin-dried and combined with the filtrate, and then the palladium removal operation was repeated once, and the filtrate was concentrated to obtain the crude product of compound 6.
- the above solid was dissolved in 14 liters of anhydrous tetrahydrofuran and 6 liters of ethyl acetate and added to the reaction kettle, then the modified silica gel except for palladium was added to the reaction kettle, and at 20 to 25 °C, stirred for 12 After 1 hour, the reaction solution was filtered, spin-dried, and the filtrate was concentrated to obtain a crude product, which was vacuum-dried to constant weight to obtain the compound of formula (I).
- the crude compound 6 (68 mg, 85.66 ⁇ mol) was dissolved in dichloromethane (3 mL), hydrogen chloride in ethyl acetate (4 mol/L, 1.5 mL) was added, and the mixture was stirred at room temperature at 25° C. for 0.5 hour. After the reaction was completed, it was concentrated.
- the crude product was subjected to preparative high performance liquid chromatography (chromatographic column: Phenomenex Gemini-NX C18 75 ⁇ 30 mm ⁇ 3 microns; mobile phase: mobile phase A: 0.225% formic acid aqueous solution by volume; mobile phase B: acetonitrile; B%: 10%- 40%, 7 minutes) to isolate the formate salt of the compound of formula (I).
- Example 8 Study on the hygroscopicity of the crystal form of compound C of formula (I)
- the hygroscopic weight gain of the crystalline form of compound C of formula (I) at 25° C. and 80% RH is 0.33%, which is slightly hygroscopic.
- Small molecule compounds can competitively inhibit the binding of PD-1 and PD-L1 by binding to PD-L1; when the PD-1 molecule as the donor is very close to the PD-L1 molecule as the acceptor, the donor molecule will The energy is transferred to the receptor molecule, which in turn causes the receptor molecule to emit fluorescence; by detecting the intensity of fluorescence, the ability of small molecules to prevent the binding of PD-L1 to PD-1 can be tested.
- Homogenouse Time-Resolved Fluorescence (HTRF) binding assay was used to detect the ability of the compounds of the present invention to inhibit the mutual binding of PD-1/PD-L1.
- PD-1/PD-L1TR-FRET detection kit was purchased from BPS Biosciences. Nivo Multilabel Analyzer (PerkinElmer).
- Dilute PD1-Eu, Dye-labeled acceptor, PD-L1-biotin and test compound with the buffer in the kit.
- the compound to be tested was diluted 5 times to the 8th concentration with a row gun, that is, from 40 micromolar to 0.5 nanomolar, and the DMSO concentration was 4%, and a double-well experiment was set up.
- the IC 50 value can be obtained by curve fitting with four parameters (log(inhibitor) vs.response in GraphPad Prism --Variable slope mode).
- Table 8 provides the inhibitory activity of compounds of the present invention on PD-1/PD-L1 binding.
- test compound IC50 (nM) Formate salts of compounds of formula (I) 4.61
- MDA-MB-231 triple-negative breast cancer cell line
- PD-L1 molecules on the cell surface can be degraded by lysosomal and proteasome pathways, and small molecule inhibitors are added to induce PD-L1 endocytosis.
- flow cytometry Fluorescence-activated Cell Sorting, FACS
- FACS Fluorescence-activated Cell Sorting
- Phosphate buffered saline 1640 medium, penicillin-streptomycin, fetal bovine serum, non-essential amino acids, ⁇ -mercaptoethanol (2-ME), human interferon ⁇ , LIVE/DEAD staining solution, staining solution (staining buffer), fixation buffer, 0.25% trypsin, EDTA, anti-human PD-L1 (Anti-human PD-L1), isotype control anti-human PD-L1 (Anti-human PD-L1Isotype) .
- 1640 complete medium configuration 439.5 ml of 1640 medium was added with 50 ml of fetal bovine serum, 5 ml of non-essential amino acids, 5 ml of penicillin-streptomycin and 0.5 ml of ⁇ liter mercaptoethanol, and mixed.
- 10mM EDTA configuration add 1ml of 0.5M EDTA to 49ml of DPBS and mix.
- MDA-MB-231 cell counting and plating remove the culture flask, remove the medium and rinse once with phosphate buffered saline (DPBS). After washing, add 3 ml of 0.25% trypsin to the culture flask and place it in a 37°C incubator for 1.5 minutes. Take out the culture flask and add 9 ml of 1640 complete medium to stop the reaction, transfer the cells to a 50 ml centrifuge tube, and centrifuge at 1000 rpm at 37°C for 5 min. Add an appropriate volume of culture medium to resuspend the cells according to the number of cells, and count with a cell counter. The cell concentration was adjusted to 5 x 10 5 cells/ml with the medium.
- Plating A volume of 200 microliters of cell suspension was added to each well of a 96-well plate, so that the number of cells in each well was 1 ⁇ 10 5 . Incubate overnight in an incubator.
- Staining Dilute anti-human PD-L1 (2 microliters per well) and LIVE/DEAD staining solution (1:1000) in staining solution, add 50 microliters to each well, and stain at 4°C for 30 min. Wash twice with 200 ⁇ l staining solution. Fixation: Add 100 microliters of fixative to each well, and fix at 4°C for 15 min. Wash twice with 200 ⁇ l staining solution. Resuspend cells in 150 ⁇ l. FACS detection. Table 9 shows the test results of the effect of the compounds of the present invention on the expression level of PD-L1 in MDA-MR-231 cells.
- test compound IC50 (nM) Formate salts of compounds of formula (I) 5.85
- the compound of formula (I) has a significant inhibitory effect on the expression level of PD-L1 in MDA-MR-231 cells.
- the engineered T cells express PD-1 molecule and T cell receptor (TCR) on the surface, and after co-culture with engineered antigen presenting cells (APC), the NFAT signaling pathway of T cells can be activated.
- TCR T cell receptor
- APC engineered antigen presenting cells
- Expression of PD-L1 molecules on APCs can effectively attenuate the NFAT signaling pathway in T cells; PD-L1 inhibitors can effectively block the PD-1/PD-L1 regulatory mechanism, thereby reversing the weakened NFAT signaling pathway.
- the small molecule was co-cultured with T cells, and then the expression of luciferase was detected to indirectly reflect the activation of the NFAT pathway in T cells.
- the PD-1/PD-L1NFAT detection kit was purchased from BPS Biosciences. Birght-Glo reagent was purchased from Promega. Nivo Multilabel Analyzer (PerkinElmer).
- the TCR Activitor/PD-L1CHO cells with a growth confluence of 80% were spread into the plate at 35,000 cells per well and then placed in a 37°C cell incubator overnight; the compounds to be tested were diluted 5-fold to the 8th cell Concentrations, i.e. dilution from 20 micromolar to 0.25 nanomolar, DMSO concentration of 2%, set up double well experiments.
- TCR Activitor/PD-L1CHO cells Discard the supernatant of TCR Activitor/PD-L1CHO cells, add 50 microliters of compound working solution to each well, and incubate at 37°C for 30 minutes; after the incubation, add 50 microliters of PD-1/NFAT to each well at a density of 4 ⁇ 10 5 /ml Reporter-Jurkat cell suspension was incubated at 37°C for 5 hours. After the incubation, 100 microliters of Bright-Glo was added to each well, and after mixing, the chemiluminescence signal was read using a Nivo multi-label analyzer.
- the value of EC 50 can be obtained by curve fitting with four parameters (log(inhibitor) vs.response in GraphPad Prism --Variable slope mode).
- Table 10 shows the test results of the degree of activation of the NFAT pathway in T cells by the compounds of the present invention.
- the compound of formula (I) can inhibit the interaction of PD-1/PD-L1 at the cellular level, thereby significantly activating the NFAT signaling pathway of T cells.
- mice Male, 8 weeks old, body weight 25g-30g
- mice The pharmacokinetic-related parameters of the compounds of the present invention in mice are shown in Table 11 below.
- the compound of formula (I) has good pharmacokinetic properties, including good oral bioavailability, oral exposure, half-life and clearance rate.
- OBJECTIVE To evaluate the anti-tumor effect of the compounds on mouse colorectal cancer cells MC38-hPDL1 transplanted into humanized mice C57BL/6-hPDL1.
- G Group; N: Number of animals; p.o.: oral administration; i.p.: intraperitoneal injection; BID: twice a day; Q3D: once every three days; QD: once a day.
- mice mouse colon cancer cells MC38-hPDL1 were recovered, and the recovery time was Pn+6. On the day of inoculation, MC38-hPDL1 cells in logarithmic growth phase were collected, the culture medium was removed, and the cells were washed twice with PBS before inoculation (the survival rates of MC38-hPDL1 cells before and after tumor bearing were: 98.6% and 98.0%, respectively). Amount: 1 ⁇ 106/100 ⁇ L/mouse, inoculation location: right forelimb of mice.
- mice On the 7th day after inoculation, when the average tumor volume reached 85.81 mm 3 , 48 mice were randomly divided into 6 groups of 8 mice according to the tumor volume. The day of grouping was defined as D0 day, and the administration started on D0 day.
- tumor volume 0.5 ⁇ (longer diameter of tumor ⁇ shorter diameter of tumor2).
- TGItv tumor volume change
- TGITV relative tumor inhibition rate
- TGItv(%) [1-(meanTVtn-meanTVt0)/(meanTVvn-mean TVv0)] ⁇ 100%
- meanTVtn the mean tumor volume of a given group when measured on day n
- meanTVt0 the mean tumor volume of a given group when measured on day 0
- meanTVvn mean tumor volume of the solvent control group when measured on day n
- mean TVv0 mean tumor volume of the solvent control group measured on day 0
- the compound of the present invention has excellent tumor-inhibiting effect on the colorectal cancer MC38-hPDL1 subcutaneous transplantation model of C57BL/6-hPDL1 mice, and the animal body weight does not decrease significantly during the administration process, and the tolerance is good.
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Abstract
Description
吸湿性分类 | ΔW% |
潮解 | 吸收足量水分形成液体 |
极具吸湿性 | ΔW%≥15% |
有吸湿性 | 15%>ΔW%≥2% |
略有吸湿性 | 2%>ΔW%≥0.2% |
无或几乎无吸湿性 | ΔW%<0.2% |
受试化合物 | IC 50(nM) |
式(I)化合物的甲酸盐 | 4.61 |
受试化合物 | IC 50(nM) |
式(I)化合物的甲酸盐 | 5.85 |
受试化合物 | EC 50(nM) | 最大效应(诱导倍数) |
式(I)化合物的甲酸盐 | 41.45 | 5.05 |
化合物 | 式(I)化合物的甲酸盐 |
达峰浓度C max(nM) | 370 |
清除率CL(mL/min/kg) | 18.5 |
组织分布V dss(L/kg) | 36.8 |
半衰期T 1/2(IV,h) | 26.3 |
药时曲线下面积AUC 0-last PO(nM.hr) | 5753 |
生物利用度F(%) | 80.8 |
种属 | 小鼠 |
品系 | C57BL/6-hPDL1 |
级别 | SPF级 |
周龄 | 4.29~5.71 |
性别 | 雌性 |
给药组 | 给药前(第0天)平均体重(g) | 给药第24天平均体重(g) |
Vehicle(空白组) | 18.29±0.27 | 20.01±0.35 |
式(I)化合物的甲酸盐 | 18.08±0.32 | 18.91±0.38 |
式(I)化合物的甲酸盐 | 18.44±0.33 | 18.94±0.50 |
式(I)化合物的甲酸盐 | 18.64±0.28 | 19.41±0.43 |
式(I)化合物的甲酸盐 | 18.89±0.33 | 20.48±0.38 |
Claims (28)
- 根据权利要求1所述的A晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:4.19±0.20°、7.77±0.20°、8.71±0.20°、9.89±0.20°和16.22±0.20°。
- 根据权利要求2所述的A晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:4.19±0.20°、7.77±0.20°、8.71±0.20°、9.89±0.20°、16.22±0.20°、17.74±0.20°、22.82±0.20°和25.49±0.20°。
- 根据权利要求3所述的A晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:4.19°、7.77°、8.71°、9.89°、11.47°、14.41°、16.22°、17.74°、19.67°、20.98°、22.82°、25.49°和28.15°。
- 根据权利要求4所述的A晶型,其XRPD图谱如图1所示。
- 根据权利要求1~5任意一项所述的A晶型,其差示扫描量热曲线在31.2℃±5℃和148.7℃±5℃处具有吸热峰的起始点。
- 根据权利要求6所述的A晶型,其DSC图谱如图2所示。
- 根据权利要求1~5任意一项所述的A晶型,其热重分析曲线在130℃±3℃时失重达1.77%,在160℃±3℃时失重达3.32%。
- 根据权利要求8所述的A晶型,其TGA图谱如图3所示。
- 根据权利要求10所述的B晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:6.52±0.20°、9.40±0.20°、14.94±0.20°、16.10±0.20°和22.86±0.20°。
- 根据权利要求11所述的B晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:6.52±0.20°、9.40±0.20°、12.93±0.20°、14.94±0.20°、16.10±0.20°、19.06±0.20°、19.89±0.20°和22.86±0.20°。
- 根据权利要求12所述的B晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:6.52°、7.47°、9.40°、11.29°、12.93°、13.90°、14.94°、16.10°、19.06°、19.89°、21.13°、22.86°、24.55°、25.25°、25.83°、26.23°、27.45°和34.58°。
- 根据权利要求13所述的B晶型,其XRPD图谱如图4所示。
- 根据权利要求10~14任意一项所述的B晶型,其差示扫描量热曲线在145.2℃±5℃处具有吸热峰的起始点。
- 根据权利要求15所述的B晶型,其DSC图谱如图5所示。
- 根据权利要求10~14任意一项所述的B晶型,其热重分析曲线其热重分析曲线在150℃±3℃时失重达0.77%。
- 根据权利要求17所述的B晶型,其TGA图谱如图6所示。
- 根据权利要求19所述的C晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:8.75±0.20°、15.15±0.20°、17.50±0.20°、22.94±0.20°和25.04±0.20°。
- 根据权利要求20所述的C晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:8.75±0.20°、15.15±0.20°、17.50±0.20°、18.77±0.20°、22.94±0.20°、25.04±0.20°、26.20±0.20°、37.65±0.20°。
- 根据权利要求21所述的C晶型,其X射线粉末衍射图谱在下列2θ角处具有特征衍射峰:8.39°、8.75°、11.32°、12.55°、13.74°、14.07°、15.15°、17.03°、17.28°、17.50°、18.07°、18.77°、19.70°、20.35°、21.56°、21.83°、22.54°、22.94°、23.33°、23.74°、24.56°、25.04°、25.33°、26.20°、27.24°、27.93°、29.33°、30.75°、31.39°、32.44°、33.01°、34.07°、36.32°、37.65°、38.01°。
- 根据权利要求22所述的C晶型,其XRPD图谱如图7所示。
- 根据权利要求19~23任意一项所述的C晶型,其差示扫描量热曲线在184.5℃±5℃处具有吸热峰的起始点。
- 根据权利要求24所述的C晶型,其DSC图谱如图8所示。
- 根据权利要求19~23任意一项所述的C晶型,其热重分析曲线其热重分析曲线在150℃±3℃时失重达0.69%。
- 根据权利要求26所述的C晶型,其TGA图谱如图9所示。
- 根据权利要求1~9任意一项所述的A晶型或根据权利要求10~18任意一项所述的B晶型或根据权利要求19~27任意一项所述的C晶型在制备抗肿瘤药物中的应用。
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WO2021063404A1 (zh) * | 2019-09-30 | 2021-04-08 | 南京明德新药研发有限公司 | 作为pd-1/pd-l1小分子抑制剂的化合物及其应用 |
WO2021158481A1 (en) * | 2020-02-03 | 2021-08-12 | Arbutus Biopharma, Inc. | Substituted 1,1'-biphenyl compounds and methods using same |
CN113801111A (zh) * | 2020-06-12 | 2021-12-17 | 上海翰森生物医药科技有限公司 | 联苯类衍生物抑制剂及其制备方法和应用 |
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