CAS 14192-26-8

methyl 2-oxo-1,3-dihydroindole-6-carboxylate

Codes: NINT-004

Application context (from source-drug indications)

Systemic sclerosis-associated interstitial lung diseaseNintedanib EsylateIdiopathic pulmonary fibrosisNintedanib EsylateNon-small cell lung cancerNintedanib EsylatePulmonary fibrosisNintedanib EsylateInterstitial lung diseaseNintedanib EsylateHereditary haemorrhagic telangiectasiaNintedanib Esylate

Source drugs (routes using this intermediate)

Drug	Tier	Expiry
Nintedanib Esylate	Tier B — Position early	-

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.

Nintedanib EsylateOriginator routesteps: 7total yield: 12.4 g

methyl 3-nitrobenzoate→methyl 2-chloroacetate→methyl 4-(2-methoxy-2-oxoethyl)-3-nitrobenzoate→methyl 2-oxo-1,3-dihydroindole-6-carboxylate →methyl 1-acetyl-2-oxoindoline-6-carboxylate→(trimethoxymethyl)benzene→(Z)-methyl 1-acetyl-3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate→N-(4-aminophenyl)-2-(4-methylpiperazin-1-yl)acetamide→2-bromo-N-methyl-N-(4-nitrophenyl)acetamide→1-methylpiperazine→N-methyl-2-(4-methylpiperazin-1-yl)-N-(4-nitrophenyl)acetamide

Nintedanib EsylateOptimised routesteps: 10total yield: 35.1 g

methyl 2-oxo-1,3-dihydroindole-6-carboxylate →(trimethoxymethyl)benzene→N-(4-aminophenyl)-2-(4-methylpiperazin-1-yl)acetamide→1-methylpiperazine→4-chloro-3-nitrobenzoic acid→methyl 4-chloro-3-nitrobenzoate→dimethyl malonate→dimethyl 2-(4-(methoxycarbonyl)-2-nitrophenyl)malonate→2-chloroacetic anhydride→methyl 1-(2-chloroacetyl)-2-oxoindoline-6-carboxylate→(Z)-methyl 1-(2-chloroacetyl)-3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate→(Z)-methyl 3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate→ethanesulfonic acid→N-methyl-4-nitroaniline→2-chloroacetyl chloride→2-chloro-N-methyl-N-(4-nitrophenyl)acetamide

Nintedanib EsylateProcess routesteps: 2total yield: 538 g

methyl 2-oxo-1,3-dihydroindole-6-carboxylate →N-(4-aminophenyl)-2-(4-methylpiperazin-1-yl)acetamide→ethanesulfonic acid→methyl benzoate

Intermediates available on this site

Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.

Supplier	Product	Price band	MOQ	Lead time	Qualifications	Action
Unibest Taizhou GMP-like Site	Methyl 2-oxoindole-6-carboxylate Pharmaceutical Intermediates	On request	On request	On request	—

This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.