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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2071624Generated: November 1, 2026

3-butyl-7-chloro-5-methyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl ester → 7-butoxy-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl ester

https://huagongshe.com/reaction/2071624

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-butyl-7-chloro-5-methyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl esterHCID 12387639—
Reactant7-chloro-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl esterHCID 12387640—
Product7-butoxy-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl esterHCID 8673442061%

Reaction Steps

By replacing 3-butyl-7-chloro-5-methyl-3H-imidazo[4,5-b]-pyridine-6-carboxylic acid, ethyl ester in Example 5 with 7-chloro-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl ester of Example 2 c, 7-butoxy-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid, ethyl ester is formed. Yield 61%, b.p. 180°-190°/0.01.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04048182
Source datasetuspto-grants-1977_09
ORD IDord-9db543ed4b4346509944309b5f1ae339
Source noteuspto-grants-1977_09