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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443431Generated: November 1, 2026

Trifluoromethanesulfonic acid → 2-(1-Ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-(7-methoxy-2-phenyl-quinazolin-4-yloxy)-cyclopentanecarboxylic acid

https://huagongshe.com/reaction/1443431

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoromethanesulfonic acidHCID 62406—
Reactant2-(1-Ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-(7-methoxy-2-phenyl-quinazolin-4-yloxy)-cyclopentanecarboxylic acid tert-butyl esterHCID 68423072—
SolventDichloromethaneHCID 6344—
SolventTriethylsilaneHCID 12052—
Product2-(1-Ethoxycarbonyl-2-vinyl-cyclopropylcarbamoyl)-4-(7-methoxy-2-phenyl-quinazolin-4-yloxy)-cyclopentanecarboxylic acidHCID 6842098699.5%

Reaction Steps

Compound 16 (780 mg, 1.29 mmol) was dissolved in dichloromethane (20 mL) and triethylsilane (0.4 mL). Trifluoromethanesulfonic acid was added dropwise at room temperature. The mixture was then left for 2 h at room temperature. Removal of the solvent gave pure title product (700 mg, 99%) MS (M+H)+ 546.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659245B2
Source datasetuspto-grants-2010_02
ORD IDord-0c676a151ff946aca1977942ae6014cf
Source noteuspto-grants-2010_02