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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498647Generated: October 27, 2026

Trifluoroacetic acid → 8-(4-Fluoro-phenylethynyl)-4-(3-pyridin-2-yl-phenyl)-1,3-dihydro-benzo[b][1,4]diazepin-2-one

https://huagongshe.com/reaction/498647

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{4-(4-Fluoro-phenylethynyl)-2-[3-oxo-3-(3-pyridin-2-yl-phenyl)-propionylamino]-phenyl}-carbamic acid tert-butyl esterHCID 86589332—
SolventDichloromethaneHCID 6344—
Product8-(4-Fluoro-phenylethynyl)-4-(3-pyridin-2-yl-phenyl)-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 22317527—

Reaction Steps

The title compound was prepared from {4-(4-fluoro-phenylethynyl)-2-[3-oxo-3-(3-pyridin-2-yl-phenyl)-propionylamino]-phenyl}-carbamic acid tert-butyl ester (Example M147) (287 mg, 0.52 mmol) by treatment with TFA in CH2Cl2 according to the general procedure N. Obtained as an off-white solid (197 mg, 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949542B2
Source datasetuspto-grants-2005_09
ORD IDord-c3cf7183e463466a8c3d488f5725adc7
Source noteuspto-grants-2005_09