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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498688Generated: October 30, 2026

Trifluoroacetic acid → 4-{3-[8-(2-Methoxy-ethoxy)-4-oxo-7-trifluoromethyl-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-phenyl}-pyridine-2-carbonitrile

https://huagongshe.com/reaction/498688

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant[2-{3-[3-(2-Cyano-pyridin-4-yl)-phenyl]-3-oxo-propionylamino}-5-(2-methoxy-ethoxy)-4-trifluoromethyl-phenyl]-carbamic acid tert-butyl esterHCID 86589373—
SolventDichloromethaneHCID 6344—
Product4-{3-[8-(2-Methoxy-ethoxy)-4-oxo-7-trifluoromethyl-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-phenyl}-pyridine-2-carbonitrileHCID 22318015—

Reaction Steps

The title compound was prepared from [2-{3-[3-(2-cyano-pyridin-4-yl)-phenyl]-3-oxo-propionylamino}-5-(2-methoxy-ethoxy)-4-trifluoromethyl-phenyl]-carbamic acid tert-butyl ester (Example M189) (278 mg, 0.46 mmol) by treatment with TFA in CH2Cl2 according to the general procedure N. Obtained as a light yellow solid (185 mg, 84%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949542B2
Source datasetuspto-grants-2005_09
ORD IDord-d4c61653ebce4ee3b183a198f82eb505
Source noteuspto-grants-2005_09