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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1576096Generated: October 31, 2026

Butylamine → 4-butylamino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

https://huagongshe.com/reaction/1576096

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButylamineHCID 8007—
ReactantCID 14590535HCID 14590535—
SolventWaterHCID 962—
Product4-butylamino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl esterHCID 53782720—

Reaction Steps

4-Ethoxy-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester is treated with butylamine at 90° for 1 hour. After this period the mixture is cooled, diluted with water and the white crystalline precipitate is filtered off. Recrystallization from diethyl ether yields 4-butylamino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03979399
Source datasetuspto-grants-1976_09
ORD IDord-0c889dc07b0c470484e3e300fac50345
Source noteuspto-grants-1976_09