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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1678473Generated: November 3, 2026

2'-Methyl-5'-[(thiophene-2-carbonyl)-amino]-biphenyl-4-carboxylic acid ethyl ester → 2'-Methyl-5'-[(thiophene-2-carbonyl)-amino]-biphenyl-4-carboxylic acid

https://huagongshe.com/reaction/1678473

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2'-Methyl-5'-[(thiophene-2-carbonyl)-amino]-biphenyl-4-carboxylic acid ethyl esterHCID 67372981—
SolventTetrahydrofuranHCID 8028—
SolventSodium HydroxideHCID 14798—
Product2'-Methyl-5'-[(thiophene-2-carbonyl)-amino]-biphenyl-4-carboxylic acidHCID 67373573—

Reaction Steps

2′-Methyl-5′-[(thiophene-2-carbonyl)-amino]-biphenyl-4-carboxylic acid ethyl ester (425 mg) in THF (10 ml) and sodium hydroxide (1M, 20 ml) was heated to reflux for 4 h. The solvent was then evaporated and the residue acidified. The resulting precipitate was collected by filtration and dried (321 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008303B2
Source datasetuspto-grants-2011_08
ORD IDord-14f9aabed4ef4757829be62735025a58
Source noteuspto-grants-2011_08