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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 371927Generated: October 31, 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/371927

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 numberUS04088654
Source datasetuspto-grants-1978_05
ORD IDord-00b49bb6f01940ef960efa0da37614c9
Source noteuspto-grants-1978_05