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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1635398Generated: November 1, 2026

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

https://huagongshe.com/reaction/1635398

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{4-(4-Fluoro-phenylethynyl)-2-[3-(2-imidazol-1-yl-pyridin-4-yl)-3-oxo-propionylamino]-phenyl}-carbamic acid tert.-butyl esterHCID 86588029—
SolventDichloromethaneHCID 6344—
Product8-(4-Fluoro-phenylethynyl)-4-(2-imidazol-1-yl-pyridin-4-yl)-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 9888427—

Reaction Steps

Prepared from {4-(4-fluoro-phenylethynyl)-2-[3-(2-imidazol-1-yl-pyridin-4-yl)-3-oxo-propionylamino]-phenyl}-carbamic acid tert.-butyl ester (Example K43) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a light brown solid (189 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06509328B1
Source datasetuspto-grants-2003_01
ORD IDord-1ed206990e1f4b12b191a6336a1ce24c
Source noteuspto-grants-2003_01