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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1745673Generated: October 30, 2026

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

https://huagongshe.com/reaction/1745673

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{2-[3-(3-Cyano-phenyl)-3-oxo-propionylamino]-4-thiazol-2-ylethynyl-phenyl}-carbamic acid tert.-butyl esterHCID 86588000—
SolventDichloromethaneHCID 6344—
Product(E)-3-(4-oxo-7-(2-(thiazol-2-yl)ethynyl)-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl)benzonitrileHCID 2222497540.7%

Reaction Steps

Prepared from {2-[3-(3-cyano-phenyl)-3-oxo-propionylamino]-4-thiazol-2-ylethynyl-phenyl}-carbamic acid tert.-butyl ester (Example K11) (119 mg, 0.24 mmol) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a yellow solid (36 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07018998B2
Source datasetuspto-grants-2006_03
ORD IDord-02f54facb22941719aebfe638025b5b0
Source noteuspto-grants-2006_03