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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1062168Generated: November 4, 2026

Trifluoroacetic acid → 3-[4-Oxo-7-(4-trifluoromethoxy-phenylethynyl)-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-benzonitrile

https://huagongshe.com/reaction/1062168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant[2-[3-(3-Cyano-phenyl)-3-oxo-propionylamino]-4-(4-trifluoromethoxy-phenylethynyl)-phenyl]-carbamic acid tert.-butyl esterHCID 86588017—
SolventDichloromethaneHCID 6344—
Product3-[4-Oxo-7-(4-trifluoromethoxy-phenylethynyl)-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-benzonitrileHCID 2222481283.8%

Reaction Steps

Prepared from [2-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-4-(4-trifluoromethoxy-phenylethynyl)-phenyl]-carbamic acid tert.-butyl ester (Example K30) (170 mg, 0.3 mmol) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a beige solid (112 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06960578B2
Source datasetuspto-grants-2005_11
ORD IDord-8d0364578b5442759a8aca0fb0f70ef7
Source noteuspto-grants-2005_11