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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 521768Generated: October 30, 2026

Hydrochloric Acid → 5-[4-({3-[(3-methyl-2-furoyl)amino]phenyl}amino)pyridin-2-yl]-1H-pyrrole-3-carboxylic acid

https://huagongshe.com/reaction/521768

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantMeOH tetrahydrofuranHCID 21899815—
Reactantmethyl 5-[4-({3-[(3-methyl-2-furoyl)amino]phenyl}amino)pyridin-2-yl]-1H-pyrrole-3-carboxylateHCID 58167905—
SolventWaterHCID 962—
Product5-[4-({3-[(3-methyl-2-furoyl)amino]phenyl}amino)pyridin-2-yl]-1H-pyrrole-3-carboxylic acidHCID 58167932—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a stirred solution of methyl 5-[4-({3-[(3-methyl-2-furoyl)amino]phenyl}amino)pyridin-2-yl]-1H-pyrrole-3-carboxylate (10 mg, 0.024 mmol) in a mixture of solvents THF/MeOH (5 ml/5 ml) was added 2 ml of 1M NaOH (2 mmol) solution. The mixture was heated in a 60° C. bath for 16 hours, cooled to room temperature and poured into 100 ml of water. 2M HCl was added until pH=5. The resulting precipitates were filtered, washed with water, and dried in vacuo to give 5-[4-({3-[(3-methyl-2-furoyl)amino]phenyl}amino)pyridin-2-yl]-1H-pyrrole-3-carboxylic acid as light brown solid. Yield: 2 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09328103B2
Source datasetuspto-grants-2016_05
ORD IDord-6d3fb279993d4f0f8fa3cb36a07bede3
Source noteuspto-grants-2016_05