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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1062127Generated: October 26, 2026

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

https://huagongshe.com/reaction/1062127

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{2-[3-(3-Cyano-phenyl)-3-oxo-propionylamino]-4-phenylethynyl-phenyl}-carbamic acid tert.-butyl esterHCID 11167526—
SolventDichloromethaneHCID 6344—
Product3-(4-Oxo-7-phenylethynyl-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)-benzonitrileHCID 982032177.8%

Reaction Steps

Prepared from {2-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-4-phenylethynyl-phenyl}-carbamic acid tert.-butyl ester (Example K2) (230 mg, 0.48 mmol) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a light yellow solid (135 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06960578B2
Source datasetuspto-grants-2005_11
ORD IDord-6421269797f9472fa9c7949718587b6e
Source noteuspto-grants-2005_11