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CAS 35277-02-2
4-Fluoro-1H-pyrazole
Codes：(XVII)1024528-1-b,(XVII)1024528-1-c
Application context (from source-drug indications)
非小细胞肺癌普拉替尼甲状腺瘤普拉替尼甲状腺髓样癌普拉替尼
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 普拉替尼Pralsetinib | Tier C — Watch / trade | 2031 |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
Methyl 4-(4-chloro-6-methylpyrimidin-2-yl)-1-methoxycyclohexane-1-carboxylate→3-Amino-5-methylpyrazole→Methyl 1-methoxy-4-[4-methyl-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]cyclohexane-1-carboxylate→1-Methoxy-4-[4-methyl-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]cyclohexane-1-carboxylic acid→1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethan-1-one→1-(6-Bromopyridin-3-yl)ethan-1-one→(1S)-1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethan-1-amine hydrogen chloride→(1S)-1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethan-1-amine→(1S)-1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethan-1-amine hydrogen chloride (1/2)→4-Fluoro-1H-pyrazole→1,1,3,3-Tetrakis(methyloxy)propane→(R)-(+)-2-Methyl-2-propanesulfinamide→(SR)-N-[(1S)-1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethyl]-2-methylpropane-2-sulfinamide
1-[6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl]ethan-1-one→4-Fluoro-1H-pyrazole→2,2,3,3-Tetrafluoropropan-1-ol→4-(2,2,3,3-Tetrafluoropropyl)morpholine→4-Methyl-4-(2,2,3,3-tetrafluoropropyl)morpholin-4-ium mesylate→1,2-Diazole→4-Methyl-4-[(1Z)-2,3,3-trifluoroprop-1-en-1-yl]morpholin-4-ium methanesulfonate→(2Z)-2-Fluoro-3-(morpholin-4-yl)prop-2-enal→Hydrazine dihydrochloride→4-Fluoro-1H-pyrazole hydrogen chloride→5-Bromo-2-chloropyridine→Acetic acid acetic anhydride→1-(6-Chloropyridin-3-yl)ethanone
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