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CAS 890045-70-2
3-(1-Chloro-2-methylpropan-2-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
Codes：Lercanidipine Hydrochloride-012
Application context (from source-drug indications)
原发性高血压缬沙坦/盐酸乐卡地平
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 缬沙坦/盐酸乐卡地平Valsartan/Lercanidipine Hydrochloride | Tier C — Watch / trade | - |
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.
1-Methoxybutane-1,3-dione→1-Chloro-2-methyl-2-propanol→1-Chloro-2-methylpropan-2-yl 3-oxobutanoate→(3-Nitrophenyl)methanone→1-Chloro-2-methylpropan-2-yl (2Z)-2-[(3-nitrophenyl)methylidene]-3-oxobutanoate→3-Amino-2-butenoic acid methyl ester→3-(1-Chloro-2-methylpropan-2-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate→3-(1-Bromo-2-methylpropan-2-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate→(+/-)-5-(Methoxycarbonyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydro-3-pyridinecarboxylic acid→5-(Chlorocarbonyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid methyl ester→1-Bromo-2-methylpropan-2-ol→(3,3-Diphenylpropyl)(methyl)amine
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