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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 18686Generated: October 29, 2026

3-Cyano-2-[3-(2-methoxy-phenyl)-propionylamino]-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acid 2-acetoxy-ethyl ester → 3-Cyano-2-[3-(2-methoxy-phenyl)-propanoylamino]-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acid 2-hydroxy-ethyl ester

https://huagongshe.com/reaction/18686

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Cyano-2-[3-(2-methoxy-phenyl)-propionylamino]-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acid 2-acetoxy-ethyl esterHCID 11857434—
SolventSodium HydroxideHCID 14798—
Product3-Cyano-2-[3-(2-methoxy-phenyl)-propanoylamino]-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acid 2-hydroxy-ethyl esterHCID 11857437—

Reaction Steps

3-Cyano-2-[3-(2-methoxy-phenyl)-propionylamino]-4,7-dihydro-5H-thieno[2,3-c]pyridine-6-carboxylic acid 2-acetoxy-ethyl ester (Example 31) is stirred in 1N NaOH over night at room temperature. After acidification with aqueous HCl the precipitated product is filtered off and recristalized from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07741488B2
Source datasetuspto-grants-2010_06
ORD IDord-284a7f1bb14041a2acb5c560ed9b9880
Source noteuspto-grants-2010_06