RO64419A - Procede pour la preparation des derives 0-substitues d'acide 7-betha-amino-3-cephem-3-ole-carboxylique - Google Patents

Procede pour la preparation des derives 0-substitues d'acide 7-betha-amino-3-cephem-3-ole-carboxylique

Info

Publication number: RO64419A
Authority: RO; Romania
Prior art keywords: betha; cephem; ole; amino; substituted
Prior art date: 1972-06-29

Application number

RO7386374A

Other languages

English (en)

French (fr)

Original Assignee

Ciba Geigy Ag

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1972-06-29

Filing date

1973-06-14

Publication date

1979-07-15

1972-06-29 Priority claimed from CH978872A external-priority patent/CH587268A5/de

1972-12-22 Priority claimed from CH1872272A external-priority patent/CH605987A5/de

1973-02-23 Priority claimed from CH265573A external-priority patent/CH605988A5/de

1973-06-14 Application filed by Ciba Geigy Ag filed Critical Ciba Geigy Ag

1979-07-15 Publication of RO64419A publication Critical patent/RO64419A/ro

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
- C07D501/02—Preparation
- C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
- C07D501/14—Compounds having a nitrogen atom directly attached in position 7
- C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
- C07D501/59—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3 with hetero atoms directly attached in position 3
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6561—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings
- C07F9/65613—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings containing the ring system (X = CH2, O, S, NH) optionally with an additional double bond and/or substituents, e.g. cephalosporins and analogs
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Health & Medical Sciences (AREA)
General Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Biochemistry (AREA)
Molecular Biology (AREA)
Oncology (AREA)
Veterinary Medicine (AREA)
Pharmacology & Pharmacy (AREA)
Chemical Kinetics & Catalysis (AREA)
Animal Behavior & Ethology (AREA)
Medicinal Chemistry (AREA)
Public Health (AREA)
General Chemical & Material Sciences (AREA)
Communicable Diseases (AREA)
Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
Cephalosporin Compounds (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

RO7386374A 1972-06-29 1973-06-14 Procede pour la preparation des derives 0-substitues d'acide 7-betha-amino-3-cephem-3-ole-carboxylique RO64419A (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
CH978872A CH587268A5 (en)	1972-06-29	1972-06-29	Substd carboxylic acid derivs - broad spectrum antibiotics and inters
CH1219572		1972-08-17
CH1872272A CH605987A5 (en)	1972-12-22	1972-12-22	Substd carboxylic acid derivs
CH265573A CH605988A5 (en)	1973-02-23	1973-02-23	Substd 7-beta-amino ceph-3-em-3-ol 4-carboxylic acids

Publications (1)

Publication Number	Publication Date
RO64419A true RO64419A (fr)	1979-07-15

Family

ID=27428472

Family Applications (4)

Application Number	Title	Priority Date	Filing Date
RO7375138A RO64226A (fr)	1972-06-29	1973-06-14	Procede pour preparation des derives o-substitues d'acide 7-beta-amino-3-cephem-3-ole-4-carboxylique
RO7384759A RO73345A (ro)	1972-06-29	1973-06-14	Procedeu pentru prepararea unor derivati /-substituiti ai acidului 7 beta-amino-3-cefem-3-ol-4-carboxilic
RO7386374A RO64419A (fr)	1972-06-29	1973-06-14	Procede pour la preparation des derives 0-substitues d'acide 7-betha-amino-3-cephem-3-ole-carboxylique
RO7300860064A RO63761A (fr)	1972-06-29	1973-06-14	Procede pour la preparation des derives 0-substitues-d'acide-7-beta-amino-3-cephem 3-ole-4-carboxylique

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
RO7375138A RO64226A (fr)	1972-06-29	1973-06-14	Procede pour preparation des derives o-substitues d'acide 7-beta-amino-3-cephem-3-ole-4-carboxylique
RO7384759A RO73345A (ro)	1972-06-29	1973-06-14	Procedeu pentru prepararea unor derivati /-substituiti ai acidului 7 beta-amino-3-cefem-3-ol-4-carboxilic

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
RO7300860064A RO63761A (fr)	1972-06-29	1973-06-14	Procede pour la preparation des derives 0-substitues-d'acide-7-beta-amino-3-cephem 3-ole-4-carboxylique

Country Status (26)

Country	Link
US (2)	US4405778A (ro)
JP (3)	JPS5933598B2 (ro)
AR (6)	AR206201A1 (ro)
AT (5)	AT356810B (ro)
BE (1)	BE801597A (ro)
BG (1)	BG24954A3 (ro)
CA (1)	CA1110230A (ro)
DD (3)	DD107470A5 (ro)
DE (1)	DE2331133C2 (ro)
DK (1)	DK153324B (ro)
FI (3)	FI59601C (ro)
FR (1)	FR2190418B1 (ro)
GB (1)	GB1435111A (ro)
HK (1)	HK73778A (ro)
HU (3)	HU168017B (ro)
IE (1)	IE37767B1 (ro)
IL (1)	IL42506A (ro)
LU (3)	LU67891A1 (ro)
MY (1)	MY7900008A (ro)
NL (3)	NL7309136A (ro)
NO (3)	NO145241C (ro)
PH (1)	PH18567A (ro)
PL (1)	PL91608B1 (ro)
RO (4)	RO64226A (ro)
SE (5)	SE417099B (ro)
YU (8)	YU39909B (ro)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
YU36970B (en) *	1973-02-23	1984-08-31	Lilly Co Eli	Process for obtaining 7-(amino)-acylamido-3-halocephalosporins
US4301278A (en) *	1974-02-26	1981-11-17	Ciba-Geigy Corporation	Process for the manufacture of enol derivatives
AU498131B2 (en) *	1974-02-26	1979-02-15	Ciba-Geigy Ag	Production of cephems by cyclization
US3928334A (en) *	1974-06-06	1975-12-23	Bristol Myers Co	Process for the production of cefamandole
US4045435A (en) *	1974-10-09	1977-08-30	Eli Lilly And Company	Preparation of cephalosporin ethers
AT342197B (de) *	1975-02-20	1978-03-28	Ciba Geigy Ag	Neues verfahren zur herstellung von 3-cephemverbindungen
US4147864A (en) *	1975-02-20	1979-04-03	Ciba-Geigy Corporation	Process for the manufacture of 7β-amino-3-cephem-3-ol-4 carboxylic acid compounds
CH622802A5 (ro) *	1975-08-20	1981-04-30	Ciba Geigy Ag
PH17188A (en) *	1977-03-14	1984-06-14	Fujisawa Pharmaceutical Co	New cephem and cepham compounds and their pharmaceutical compositions and method of use
US4604386A (en) *	1984-07-09	1986-08-05	Eli Lilly And Company	3-(alkynylalkyloxy) cephalosporins
GR861118B (en)	1985-04-30	1986-08-18	Lilly Co Eli	7-substituted bicyclic pyrazolidinones
EP0280240B1 (en) *	1987-02-27	1994-09-14	Banyu Pharmaceutical Co., Ltd.	Cephalosporin derivatives, process for their preparation and antibacterial agents
JP2676763B2 (ja) *	1987-02-27	1997-11-17	萬有製薬株式会社	セファロスポリン誘導体
JPS63255800A (ja) *	1987-04-14	1988-10-24	礒井　誠二郎	警報装置
AU618029B2 (en) *	1987-11-02	1991-12-12	Imperial Chemical Industries Plc	Polypeptide compounds
GB8813356D0 (en) *	1988-06-06	1988-07-13	Ici Plc	Polypeptide compounds
DK0521827T3 (da)	1991-07-03	1996-11-11	Ciba Geigy Ag	Farmakologisk virksomme hydrazinderivater og fremgangsmåde til deres fremstilling
GB9115203D0 (en) *	1991-07-15	1991-08-28	Biochemie Gmbh	Improvements in or relating to beta lactam production
MXPA01009808A (es) *	1999-04-01	2002-04-24	Dsm Nv	Aglomerados por cristalizacion.
US6627556B1 (en)	2002-04-24	2003-09-30	Lsi Logic Corporation	Method of chemically altering a silicon surface and associated electrical devices
CN102268023B (zh) *	2011-08-15	2013-04-17	南京丰融化学技术有限公司	头孢类衍生物cxd的晶型
CN115160097B (zh) *	2022-07-22	2024-05-28	温州大学	一种硫代乙酸还原n-o键合成酰胺的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1308822A (en) *	1970-04-14	1973-03-07	Beecham Group Ltd	4-isopropylidene-3-oxocephams
GB1348985A (en) *	1970-06-16	1974-03-27	Merck & Co Inc	Esters of cephalosporin compounds
IL37879A (en) *	1970-10-27	1974-12-31	Ciba Geigy Ag	3-unsubstituted cephalosporin derivatives,process for their manufacture and compositions containing them
US3704297A (en) *	1971-03-05	1972-11-28	American Home Prod	7 - (1,4 - cyclohexadienylacylamido)cephalosporanic acids and related compounds
US3741962A (en) *	1971-05-21	1973-06-26	Squibb & Sons Inc	Alpha-thioureidocephalosporanic acid compounds
US3846417A (en) *	1972-06-23	1974-11-05	Squibb & Sons Inc	1,4-cyclohexadienyl imidazolidinyl cephalosporanic acids and derivatives thereof
US3917588A (en) *	1972-11-28	1975-11-04	Lilly Co Eli	{60 -Aminoacyl cephalosporin ethers
US3917587A (en) *	1972-11-28	1975-11-04	Lilly Co Eli	Cephalosporin ethers
US3907786A (en) *	1973-09-04	1975-09-23	Bristol Myers Co	7-{8 {60 -(2-aminomethyl-1,4-cyclohexadienyl)acetamido{9 -3-heterocyclic-thiomethyl-3-cephem-4-carboxylic acids and salts

1973
- 1973-01-01 AR AR248828A patent/AR206201A1/es active
- 1973-05-30 FI FI1750/73A patent/FI59601C/fi active
- 1973-05-30 FI FI1752/73A patent/FI60870C/fi active
- 1973-05-30 FI FI1751/73A patent/FI59602C/fi active
- 1973-06-07 IE IE914/73A patent/IE37767B1/xx unknown
- 1973-06-12 SE SE7308234A patent/SE417099B/xx unknown
- 1973-06-12 SE SE7308235A patent/SE417430B/xx unknown
- 1973-06-12 SE SE7308237A patent/SE7308237L/sv unknown
- 1973-06-12 SE SE7308233A patent/SE417429B/sv unknown
- 1973-06-14 RO RO7375138A patent/RO64226A/ro unknown
- 1973-06-14 RO RO7384759A patent/RO73345A/ro unknown
- 1973-06-14 RO RO7386374A patent/RO64419A/ro unknown
- 1973-06-14 RO RO7300860064A patent/RO63761A/ro unknown
- 1973-06-15 IL IL42506A patent/IL42506A/xx unknown
- 1973-06-19 DE DE2331133A patent/DE2331133C2/de not_active Expired
- 1973-06-26 FR FR7323235A patent/FR2190418B1/fr not_active Expired
- 1973-06-27 GB GB3053773A patent/GB1435111A/en not_active Expired
- 1973-06-27 LU LU67891A patent/LU67891A1/xx unknown
- 1973-06-27 BG BG024001A patent/BG24954A3/xx unknown
- 1973-06-27 LU LU67888A patent/LU67888A1/xx unknown
- 1973-06-27 LU LU67887A patent/LU67887A1/xx unknown
- 1973-06-28 DD DD171905A patent/DD107470A5/xx unknown
- 1973-06-28 DD DD171906A patent/DD106187A5/xx unknown
- 1973-06-28 DD DD171903A patent/DD106184A5/xx unknown
- 1973-06-28 AT AT569573A patent/AT356810B/de not_active IP Right Cessation
- 1973-06-28 AT AT57675*A patent/ATA57675A/de unknown
- 1973-06-28 HU HUCI1392A patent/HU168017B/hu unknown
- 1973-06-28 AT AT57675*7A patent/AT329762B/de not_active IP Right Cessation
- 1973-06-28 HU HUCI1393A patent/HU167726B/hu unknown
- 1973-06-28 PH PH14784A patent/PH18567A/en unknown
- 1973-06-28 NO NO2682/73A patent/NO145241C/no unknown
- 1973-06-28 NO NO2683/73A patent/NO145242C/no unknown
- 1973-06-28 CA CA175,100A patent/CA1110230A/en not_active Expired
- 1973-06-28 NO NO2681/73A patent/NO145240C/no unknown
- 1973-06-28 AT AT569673A patent/AT329745B/de not_active IP Right Cessation
- 1973-06-28 BE BE132845A patent/BE801597A/xx not_active IP Right Cessation
- 1973-06-28 DK DK358873AA patent/DK153324B/da not_active Application Discontinuation
- 1973-06-28 HU HUCI1391A patent/HU169032B/hu unknown
- 1973-06-28 AT AT569473A patent/AT356809B/de not_active IP Right Cessation
- 1973-06-29 PL PL1973163719A patent/PL91608B1/pl unknown
- 1973-06-29 JP JP48074354A patent/JPS5933598B2/ja not_active Expired
- 1973-06-29 AR AR248827A patent/AR212317A1/es active
- 1973-06-29 NL NL7309136A patent/NL7309136A/xx unknown
- 1973-06-29 YU YU1792/73A patent/YU39909B/xx unknown
- 1973-06-29 YU YU1795/73A patent/YU39911B/xx unknown
- 1973-06-29 JP JP48074355A patent/JPS5933599B2/ja not_active Expired
- 1973-06-29 JP JP48074353A patent/JPS5934716B2/ja not_active Expired
- 1973-06-29 YU YU1793/73A patent/YU39910B/xx unknown
- 1973-06-29 NL NL7309137A patent/NL7309137A/xx not_active Application Discontinuation
- 1973-06-29 AR AR248826A patent/AR212576A1/es active
- 1973-06-29 NL NL7309139A patent/NL7309139A/xx not_active Application Discontinuation
1975
- 1975-09-30 AR AR264921A patent/AR212028A1/es active
1976
- 1976-02-13 US US05/657,904 patent/US4405778A/en not_active Expired - Lifetime
- 1976-02-13 US US05/657,908 patent/US4073902A/en not_active Expired - Lifetime
- 1976-09-30 AR AR264920A patent/AR211870A1/es active
- 1976-09-30 AR AR264922A patent/AR211871A1/es active
- 1976-10-29 SE SE7612053A patent/SE435289B/xx not_active IP Right Cessation
1978
- 1978-12-14 HK HK737/78A patent/HK73778A/xx unknown
1979
- 1979-12-30 MY MY8/79A patent/MY7900008A/xx unknown
1980
- 1980-11-03 YU YU02807/80A patent/YU280780A/xx unknown
- 1980-11-06 YU YU02842/80A patent/YU284280A/xx unknown
1981
- 1981-09-16 YU YU02237/81A patent/YU223781A/xx unknown
- 1981-09-16 YU YU02236/81A patent/YU223681A/xx unknown
- 1981-09-16 YU YU02238/81A patent/YU223881A/xx unknown

Also Published As

Publication number	Publication date
AU5738673A (en)	1975-01-09
NO145241C (no)	1982-02-10
SE417099B (sv)	1981-02-23
YU39910B (en)	1985-06-30
JPS5933598B2 (ja)	1984-08-16
DK153324B (da)	1988-07-04
YU179273A (en)	1982-06-30
SE417430B (sv)	1981-03-16
BG24954A3 (en)	1978-06-15
NO145240C (no)	1982-02-10
IE37767B1 (en)	1977-10-12
SE7308237L (ro)	1974-01-08
AR206201A1 (es)	1976-07-07
RO73345A (ro)	1982-09-09
IE37767L (en)	1973-12-29
AT329745B (de)	1976-05-25
NL7309136A (ro)	1974-01-02
HK73778A (en)	1978-12-22
JPS5934716B2 (ja)	1984-08-24
MY7900008A (en)	1979-12-31
SE7308233L (ro)	1973-12-31
AR211871A1 (es)	1978-03-31
NO145242B (no)	1981-11-02
NO145240B (no)	1981-11-02
RO63761A (fr)	1978-12-15
PH18567A (en)	1985-08-12
US4073902A (en)	1978-02-14
JPS5933599B2 (ja)	1984-08-16
FI60870C (fi)	1982-04-13
LU67887A1 (ro)	1975-04-11
BE801597A (fr)	1973-12-28
FI59601C (fi)	1981-09-10
FI59602C (fi)	1981-09-10
FI59601B (fi)	1981-05-29
PL91608B1 (en)	1977-03-31
SE7612053L (sv)	1976-10-29
ATA57675A (de)	1975-08-15
YU284280A (en)	1983-01-21
DD106187A5 (ro)	1974-06-05
ATA569573A (de)	1975-06-15
JPS4949987A (ro)	1974-05-15
SE7308234L (sv)	1973-12-31
YU179573A (en)	1982-06-30
YU280780A (en)	1983-02-28
US4405778A (en)	1983-09-20
AR212576A1 (es)	1978-08-15
DD107470A5 (ro)	1974-08-05
DD106184A5 (ro)	1974-06-05
FR2190418A1 (ro)	1974-02-01
NL7309139A (ro)	1974-01-02
AT329762B (de)	1976-05-25
FI59602B (fi)	1981-05-29
NL7309137A (ro)	1974-01-02
ATA569673A (de)	1975-08-15
YU179373A (en)	1982-06-30
JPS4949988A (ro)	1974-05-15
FR2190418B1 (ro)	1977-07-15
AR211870A1 (es)	1978-03-31
DE2331133A1 (de)	1974-01-17
SE435289B (sv)	1984-09-17
JPS4949986A (ro)	1974-05-15
IL42506A0 (en)	1973-08-29
AT356809B (de)	1980-05-27
RO64226A (fr)	1979-05-15
YU223881A (en)	1983-06-30
HU169032B (ro)	1976-09-28
YU223681A (en)	1983-06-30
LU67888A1 (ro)	1975-04-11
YU223781A (en)	1983-06-30
YU39911B (en)	1985-06-30
AR212028A1 (es)	1978-04-28
FI60870B (fi)	1981-12-31
IL42506A (en)	1976-09-30
LU67891A1 (ro)	1975-04-11
GB1435111A (en)	1976-05-12
SE417429B (sv)	1981-03-16
DE2331133C2 (de)	1984-04-12
YU39909B (en)	1985-06-30
ATA569473A (de)	1975-04-15
AT356810B (de)	1980-05-27
NO145242C (no)	1982-02-10
CA1110230A (en)	1981-10-06
HU168017B (ro)	1976-02-28
SE7308235L (ro)	1973-12-31
HU167726B (ro)	1975-12-25
NO145241B (no)	1981-11-02
AR212317A1 (es)	1978-06-30

Publication	Publication Date	Title
RO64419A (fr)	1979-07-15	Procede pour la preparation des derives 0-substitues d'acide 7-betha-amino-3-cephem-3-ole-carboxylique
BE793710A (fr)	1973-05-02	Procede de preparation d'acide (&)-trans-chrysanthemique
RO63401A (fr)	1978-10-15	Procede pour la preparation des derives d'acide 7-acylamidodesacetoxycbphalosporanique
RO62695A (fr)	1978-03-15	Procede pour la preparation des derives d'acide 3-methy
RO62621A (fr)	1978-05-15	Procede pour la preparation des derives d'acide 7-(alpha-hydroxy-alpha-phenylacetamido)-3-(1-methyl-1h-tetrazol-5-il-thiomethyl)-3-cephem-4-carboxilique
RO63443A (fr)	1978-07-15	Procede pour la preparation du dihydrate d'acide 7-(d-alpha-amino-1,4-cyclohexadien-1-ile-acetamido)-desacetoxycephalosporanique
RO62393A (fr)	1978-08-15	Procede pour la preparation des derives d'acide 4-oxo-4h-1-benzopyranne-2-carboxyliques
RO63497A (fr)	1978-10-15	Procede pour la preparation des derives d'acide 7-acylamino dezacetoxyceposporanique
BE780604A (fr)	1972-09-13	Procede de preparation de derives d'acide
RO63738A (fr)	1978-12-15	Procede pour la preparation des eters d'acide cephalosporanique
RO63678A (fr)	1978-10-15	Procede pour preparation des derives d'acide asparagique
RO62887A (fr)	1978-02-15	Procede pour obtenir des derives d'acide p-dihydroxybehzendisulfonique
RO66051A (fr)	1979-08-15	Procede pour obtenir des derives d'acide cephalosporanique
RO70725A (ro)	1982-09-09	Procedeu de obtinere a derivatilor acidului pregnamic
RO71431A (ro)	1982-05-10	Procedeu de preparare a derivatilor acidului pregnanic
RO63501A (fr)	1978-09-15	Procede pour la preparation d'acide 3-cetoglutarique
RO75386A (ro)	1980-11-30	Procedeu de preparare a derivatilor acidului pregnanic
RO66639A (ro)	1982-05-10	Procedeu pentru prepararea acidului n5-metiltetrahdrohomofolic
RO62874A (fr)	1978-04-15	Procede pour la preparation des n-(iminomethylidene)-thiol-esterimides d'acide phosphorique
RO70672A (ro)	1982-08-17	Procedeu pentru prepararea unor derivati ai acidului 6- aminopeni ilanic
RO63038A (fr)	1978-05-15	Procede pour la preparation d'acide citrique et derives
BE804391A (fr)	1974-03-04	Procede de preparation de derives d'acide 7-amino-3-cepheme-4-carboxylique
RO62400A (fr)	1978-02-15	Procede pour la preparation des derives d'acide l-alpha-hydrazine-beta-phenylpropionique
BE809077A (fr)	1974-04-16	Procede pour la preparation du derive de l'acide cephalosporanique
RO63436A (fr)	1978-05-15	Procede pour la preparation d'esters d'acide succinylosuccinique