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CAS 1442474-38-5
N-[4-Bromo-5-(7-chloro-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl]-N'-phenylurea
Codes：(IX)819703-2-a、(V)819703-3-a
Application context (from source-drug indications)
胃肠道间质瘤瑞派替尼
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 瑞派替尼Ripretinib | Tier C — Watch / trade | 2032 |
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 (2-bromo-4-fluoro-5-nitrophenyl)acetate→6-Chloro-4-nitropyridine-3-carbaldehyde→Methyl (2Z)-2-(2-bromo-4-fluoro-5-nitrophenyl)-3-(6-chloro-4-nitropyridin-3-yl)prop-2-enoate→3-(5-Amino-2-bromo-4-fluorophenyl)-7-chloro-1,6-naphthyridin-2(1H)-one→Aminobenzene→1,1,1-Trichloromethanol 1,1'-carbonate→N-[4-Bromo-5-(7-chloro-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl]-N'-phenylurea→1-Iodoethane→N-[4-Bromo-5-(7-chloro-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl]-N'-phenylurea→Aminomethane
(2-Bromo-4-fluoro-5-nitrophenyl)acetic acid→Carbanilic acid phenyl ester→Ethyl [2-bromo-4-fluoro-5-[(phenylcarbamoyl)amino]phenyl]acetate→6-Chloro-4-(ethylamino)nicotinaldehyde→N-[4-Bromo-5-(7-chloro-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2-fluorophenyl]-N'-phenylurea→Aminomethane
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