Unibest 优贝德
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CAS 21962-45-8

4-formyl-3-methoxybenzonitrile2-Methoxy-4-cyanobenzaldehyde

Codes:FINE-002、(IV)638294-1-a,(IV)638294-1-b,(IV)638294-1-c,(IV)638294-1-d,(IV)638294-1-e、(IV)638294-2-a、(V)638294-3-a、(II)638294-4-a、(III)638294-5-a、(III)638294-7-a、(I)638294-9-a、(I)638294-11-a、(VI)638294-12-a、(I)638294-13-a、(I)638294-15-a 等 17 个

Application context (from source-drug indications)

收缩性心力衰竭非奈利酮舒张期心力衰竭非奈利酮心脏衰竭非奈利酮慢性肾功能不全非奈利酮糖尿病肾病非奈利酮二型糖尿病非奈利酮

Source drugs (routes using this intermediate)

DrugTierExpiry
非奈利酮FinerenoneTier C — Watch / trade2030

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.

非奈利酮优化路线steps: 6total yield: /
2-Methoxy-4-cyanobenzaldehyde→3-Methoxy-4-methylbenzonitrile→4-(Dibromomethyl)-3-methoxybenzonitrile→4-(Bromomethyl)-3-methoxybenzonitrile→1-[(4-Cyano-2-methoxyphenyl)methyl]-1,3,5,7-tetraazatricyclo[3.3.1.1(3,7)]decan-1-ium bromide→3-Methoxy-4-methylbenzoic acid→3-Methoxy-4-methylbenzoyl chloride→3-Methoxy-4-methylbenzamide
非奈利酮优化路线steps: 4total yield: /
2-Methoxy-4-cyanobenzaldehyde→4-Amino-5-methylpyridin-2(1H)-one→1,1,1-Triethoxyethane→4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid→2,8-Dimethyl-5-oxo-5,6-dihydro-1,6-naphthyridine-3-carbonitrile→4-(4-Cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carbonitrile→1-Cyano-2-propanone→4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carbonitrile→2-Methylidene-3-oxobutanenitrile→2-Methoxy-4-cyanobromobenzene
非奈利酮优化路线steps: 5total yield: /
2,2-Dimethyl-6-methyl-1,3-dioxin-4-one→(4-Methylphenyl)methyl 3-oxobutanoate→3-Oxobutyric acid benzyl ester→1,1-Dimethylethyl 3-oxobutanoate→Bicyclo[2.2.1]hept-5-en-2-yl 3-oxobutanoate→2-(4-Nitrophenyl)ethyl 3-oxobutanoate→2-Methoxy-4-cyanobenzaldehyde→(4-Methylphenyl)methyl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→2-[(4-Cyano-2-methoxyphenyl)methylene]-3-oxobutanoic acid phenylmethyl ester→tert-Butyl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→Bicyclo[2.2.1]hept-5-en-2-yl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→2-(4-Nitrophenyl)ethyl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→(4-Methylphenyl)methyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→Benzyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→tert-Butyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→Bicyclo[2.2.1]hept-5-en-2-yl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→2-(4-Nitrophenyl)ethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→1,1,1-Triethoxyethane→(4-Methylphenyl)methyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→Benzyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→tert-Butyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→2-(4-Nitrophenyl)ethyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Methylphenyl)methyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→Benzyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→tert-Butyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→Bicyclo[2.2.1]hept-5-en-2-yl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→2-(4-Nitrophenyl)ethyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid→Benzyl (4S)-4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→Bicyclo[2.2.1]hept-5-en-2-yl (4S)-4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate
非奈利酮优化路线steps: 6total yield: /
3-Oxobutanamide→N-Boc-acetoacetamide→2-Methoxy-4-cyanobenzaldehyde→N-Boc-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanamide→4-Amino-5-methylpyridin-2(1H)-one→tert-Butyl [4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carbonyl]carbamate→1,2-Dimethoxyethane→(±)-tert-Butyl [4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carbonyl]carbamate→tert-Butyl [(4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carbonyl]carbamate
非奈利酮优化路线steps: 6total yield: /
2-Methoxy-4-cyanobenzaldehyde→2,2,2-Trichloroethyl 3-oxobutanoate→2,2,2-Trichloroethyl (2Z)-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→2,2,2-Trichloroethyl (2E)-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→2,2,2-Trichloroethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→2,2,2-Trichloroethyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→2,2,2-Trichloroethyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid
非奈利酮优化路线steps: 8total yield: /
2-Methoxy-4-cyanobenzaldehyde→2-Methoxyethyl 3-oxobutanoate→2-Methoxyethyl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→2-Methoxyethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→2-Methoxyethyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid→4-[5-Ethoxy-3-(1H-imidazole-1-carbonyl)-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→(2S,3S)-2,3-Bis[(4-methylbenzoyl)oxy]butanedioic acid (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid (1/1)→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid→(2S,3S)-2,3-Bis(benzoyloxy)butanedioic acid (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid
非奈利酮优化路线steps: 8total yield: /
(S)-2-Amino-3-hydroxypropanoic acid→(S)-Ethyl 2-amino-3-hydroxypropanoate hydrochloride→(S)-Ethyl 2-((tert-butoxycarbonyl)amino)-3-hydroxypropanoate→2,2-Dimethyl-6-methyl-1,3-dioxin-4-one→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl 3-oxobutanoate→2-Methoxy-4-cyanobenzaldehyde→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl 4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,6-naphthyridine-3-carboxylate→(2S)-2-[(tert-Butoxycarbonyl)amino]-3-ethoxy-3-oxopropyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate
非奈利酮优化路线steps: 5total yield: /
2-Methoxy-4-cyanobenzaldehyde→N-(4-Methoxybenzyl)acetoacetamide→3-Oxo-N-(phenylmethyl)butanamide→2-[(4-Cyano-2-methoxyphenyl)methylidene]-N-[(4-methoxyphenyl)methyl]-3-oxobutanamide→N-Benzyl-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanamide→4-Amino-5-methylpyridin-2(1H)-one→4-(4-Cyano-2-methoxyphenyl)-N-[(4-methoxyphenyl)methyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxamide→N-Benzyl-4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxamide→(Diethoxymethoxy)ethane→4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-N-[(4-methoxyphenyl)methyl]-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide→N-Benzyl-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide→4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid→1-Phenylmethylamine→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-N-[(4-methoxyphenyl)methyl]-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide→(4S)-N-Benzyl-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide
非奈利酮优化路线steps: 5total yield: /
2-Methoxy-4-cyanobenzaldehyde→2,2,2-Trifluoroethyl 3-oxobutanoate→2,2,2-Trifluoroethyl 2-[(4-cyano-2-methoxyphenyl)methylene]-3-oxo-butanoate→4-Amino-5-methylpyridin-2(1H)-one→2,2,2-Trifluoroethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→2,2,2-Trifluoroethyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(±)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide
非奈利酮优化路线steps: 4total yield: /
1-[(4S)-4-Benzyl-2-oxo-1,3-oxazolidin-3-yl]butane-1,3-dione→2-Methoxy-4-cyanobenzaldehyde→4-Amino-5-methylpyridin-2(1H)-one→4-[(4S)-3-[(4S)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→(Diethoxymethoxy)ethane→1,1,1-Triethoxyethane→4-[(4S)-3-[(4S)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid
非奈利酮优化路线steps: 5total yield: /
2-Cyanoethyl 3-oxobutanoate→2-Methoxy-4-cyanobenzaldehyde→2-Cyanoethyl (2Z)-2-[(4-cyano-2-methoxyphenyl)methylene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→2-Cyanoethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→2-Cyanoethyl 4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,6-naphthyridine-3-carboxylate→2-Cyanoethyl (4S)-4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→1,1,1-Triethoxyethane→2-Cyanoethyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate
非奈利酮优化路线steps: 7total yield: /
2,2-Dimethyl-6-methyl-1,3-dioxin-4-one→(4-Nitrophenyl)methyl 3-oxobutanoate→(4-Methoxyphenyl)methyl 3-oxobutanoate→2-Methoxy-4-cyanobenzaldehyde→(4-Nitrophenyl)methyl (2E)-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→(4-Methoxyphenyl)methyl (2E)-2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→(4-Nitrophenyl)methyl 4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Methoxyphenyl)methyl 4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Nitrophenyl)methyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→1,1,1-Triethoxyethane→(Diethoxymethoxy)ethane→(4-Nitrophenyl)methyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Methoxyphenyl)methyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Nitrophenyl)methyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4-Methoxyphenyl)methyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid
非奈利酮优化路线steps: 6total yield: /
(R)-4-(Phenylmethyl)-2-oxazolidinone→3-Hydroxy 3-butenoic acid beta-lactone→1-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidin-3-yl]butane-1,3-dione→2-Methoxy-4-cyanobenzaldehyde→4-[2-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-3-oxobut-1-en-1-yl]-3-methoxybenzonitrile→4-Amino-5-methylpyridin-2(1H)-one→4-[3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→4-[(4S)-3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→1,1,1-Triethoxyethane→4-[(4S)-3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile
非奈利酮优化路线steps: 6total yield: /
2-Methoxy-4-cyanobenzaldehyde→3-Ethoxy-3-oxopropyl 3-oxobutanoate→4-Ethoxy-4-oxobutan-2-yl 3-oxobutanoate→(2R)-4-Ethoxy-4-oxobutan-2-yl 3-oxobutanoate→3-Ethoxy-3-oxopropyl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Ethoxy-4-oxobutan-2-yl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→(2R)-4-Ethoxy-4-oxobutan-2-yl 2-[(4-cyano-2-methoxyphenyl)methylidene]-3-oxobutanoate→4-Amino-5-methylpyridin-2(1H)-one→3-Ethoxy-3-oxopropyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→4-Ethoxy-4-oxobutan-2-yl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(2R)-4-Ethoxy-4-oxobutan-2-yl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate→(Diethoxymethoxy)ethane→3-Ethoxy-3-oxopropyl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→4-Ethoxy-4-oxobutan-2-yl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(2R)-4-Ethoxy-4-oxobutan-2-yl 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→3-Ethoxy-3-oxopropyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→4-Ethoxy-4-oxobutan-2-yl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(2R)-4-Ethoxy-4-oxobutan-2-yl (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate→(4S)-4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylic acid

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Unibest Taizhou GMP-like Site4-formyl-3-methoxybenzonitrile
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