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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1745771Generated: October 31, 2026

Trifluoroacetic acid → (E)-3-(7-(2-(2,4-difluorophenyl)ethynyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)benzonitrile

https://huagongshe.com/reaction/1745771

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant[2-[3-(3-Cyano-phenyl)-3-oxo-propionylamino]-4-(2,4-difluoro-phenylethynyl)-phenyl]-carbamic acid tert.-butyl esterHCID 86588080—
SolventDichloromethaneHCID 6344—
Product(E)-3-(7-(2-(2,4-difluorophenyl)ethynyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)benzonitrileHCID 22224756—

Reaction Steps

Prepared from [2-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-4-(2,4-difluoro-phenylethynyl)-phenyl]-carbamic acid tert.-butyl ester (Example K96) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a light yellow solid (87 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07018998B2
Source datasetuspto-grants-2006_03
ORD IDord-a10cde3d4ab64e53a6af206abbc3dbf5
Source noteuspto-grants-2006_03