JP2022523827A - Pet放射性トレーサーとしての[18f]標識ベンゾチアゾール誘導体 - Google Patents
Pet放射性トレーサーとしての[18f]標識ベンゾチアゾール誘導体 Download PDFInfo
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- JP2022523827A JP2022523827A JP2021552833A JP2021552833A JP2022523827A JP 2022523827 A JP2022523827 A JP 2022523827A JP 2021552833 A JP2021552833 A JP 2021552833A JP 2021552833 A JP2021552833 A JP 2021552833A JP 2022523827 A JP2022523827 A JP 2022523827A
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 229960004889 salicylic acid Drugs 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
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- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000003523 substantia nigra Anatomy 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- WMOVHXAZOJBABW-UHFFFAOYSA-N tert-butyl acetate Chemical compound CC(=O)OC(C)(C)C WMOVHXAZOJBABW-UHFFFAOYSA-N 0.000 description 1
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- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本出願は、2019年3月7日に出願された米国仮特許出願第62/814,962号の恩典および優先権を主張する。この段落で特定された出願の開示全体は、参照により本明細書に組み入れられる。
本開示は、一般に、フッ素-18標識ベンゾチアゾール化合物を含む酵素阻害活性を画像化するための陽電子放出断層撮影(PET)トレーサーとしてのフッ素-18標識ベンゾチアゾール化合物、ならびに診断および画像化のための該化合物を使用する方法に関する。
陽電子放出断層撮影(PET)は、陽電子を生成する放射性核種によって間接的に放射される一組のガンマ線を検出する核画像診断法である。放射性トレーサーは、PETにおいて、診断ツールとして、かつ、関心対象の分子の組織中濃度を画像化するために使用される。
本開示は、c-ablキナーゼ阻害活性を有する化合物、該化合物を含む組成物、および神経変性疾患を処置するのに有用な方法を提供する。
以下の説明は、本質的には、単なる例示であり、本開示、適用または使用を限定することを意図するものではない。
本明細書において使用する場合、用語「薬学的に許容し得る」は、薬学的調製物における使用に適していることを意味し、このような使用に安全であると一般に考えられているか、このような使用について国または州政府の規制当局により公式に承認されているか、または、動物、より特定すると、ヒトでの使用について米国薬局方もしくは他の一般に認識されている薬局方に列記されている。
本開示は、式(I):
[式中、R1は、R2が-Hであるとき、-18Fもしくは-11CH3であるか、または、R1は、R2が-18Fもしくは-11CH3であるとき、-Hである]
に係る化合物またはその薬学的に許容し得る塩を提供する。
工程1)(1S,2S)-N-(6-(6-(ジメチルアミノ)-4-メチルピリジン-3-イル)ベンゾ[d]チアゾール-2-イル)-2-フルオロシクロプロパン-1-カルボキサミド
密閉管に、化合物1(906mg、2.5mmol)、化合物2(430mg、2.0mmol)、(1,1’-ビス(ジフェニルホスフィノ)フェロセン)-ジクロロパラジウム(II)(44mg、0.06mmol)、炭酸セシウム(39mg、0.12mmol)およびジオキサン/水(6mL/2mL)を加え、次いで、密閉して、100℃に2時間加熱した。反応混合物をRTに冷まし、Celiteパッドに通して濾過し、次いで、EAで抽出した。合わせた有機層をNa2SO4で乾燥させ、濾過し、減圧下で濃縮して、残留物を与えた。残留物をシリカゲルフラッシュクロマトグラフィー(EA:Hex=3:1)によって精製して、化合物3(ベージュ色の固体、収量533mg、72%)を与えた。
脱水トルエン(3mL)中の化合物3(110mg、0.30mmol)の溶液に、メチルトリフルオロメタンスルホナート(39μL、0.36mmol)を加えた。混合物をRTで一晩撹拌した。反応混合物を濃縮し、シリカゲルフラッシュクロマトグラフィー(DCM中10%MeOH)によって精製して、化合物4(白色の固体、収量95mg、60%)を与えた。
陰イオン交換樹脂(QMA)に[18F]フッ化物水溶液(6.3mCi)を通過させた。エタノール(1mL)中のK222/KOM錯体10mgの溶液を使用して、[18F]フッ化物を反応バイアルに溶出させた。N2ガス下100℃で加熱することによって溶液を濃縮乾固した。乾燥させたK222/K-[18F]錯体に、DMSO 0.4mLに溶解させた化合物4前駆体(5mg)を加えた。溶液を100℃で10分間加熱し、次いで、ラジオTLCによって実施例1を検出した(37%)。
合成法は、実施例1と同じである。
Claims (12)
- 治療有効量の請求項1に記載の化合物またはその薬学的に許容し得る塩および薬学的に許容し得る担体を含む、医薬組成物。
- 神経変性疾患を処置するための方法であって、
それを必要とする被験体に、治療有効量の請求項1に記載の化合物またはその薬学的に許容し得る塩を投与することを含む、方法。 - 酵素阻害活性を決定する方法であって、
請求項1に記載の化合物を生体試料に適用すること;および
酵素阻害活性を決定するために該化合物を画像化することを含む、方法。 - 前記化合物が、陽電子放出断層撮影(PET)トレーサーとして使用される、請求項6に記載の方法。
- PET画像化法である、請求項6に記載の方法。
- AD誘導マウスADモデルまたはアルファ-シヌクレインPFF誘導マウスPDモデルにおいて使用される、請求項6に記載の方法。
- 脳におけるc-ablのアップレギュレーションまたは活性化を決定するために使用される、請求項6に記載の方法。
- c-abl治療または他の疾患修飾剤のための予測バイオマーカーとしてのコンパニオン診断のためのものである、請求項6に記載の方法。
- 神経変性疾患を有する患者に使用される、請求項6に記載の方法。
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US201962814962P | 2019-03-07 | 2019-03-07 | |
US62/814,962 | 2019-03-07 | ||
PCT/IB2020/051970 WO2020178795A1 (en) | 2019-03-07 | 2020-03-06 | [ 18f]-labeled benzothiazole derivative as pet radiotracer |
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US20220160902A1 (en) | 2022-05-26 |
WO2020178795A1 (en) | 2020-09-10 |
JP7456641B2 (ja) | 2024-03-27 |
EP3934702A1 (en) | 2022-01-12 |
KR20210126146A (ko) | 2021-10-19 |
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