Trifluoroacetic acid → 3-(1-(2-(Benzyloxy)-2-oxoethyl)cyclopentanecarboxamido)-4-(biphenyl-4-yl)butanoic acid

Participants

Reaction Steps

To a solution of tert-butyl 3-(1-(2-(benzyloxy)-2-oxoethyl)cyclopentanecarboxamido)-4-(biphenyl-4-yl)butanoate (38 mg, 0.068 mmol) in DCM (0.7 ml), TFA (0.263 ml, 3.42 mmol) was added. After stirred for 1 hour, the reaction mixture was concentrated to give 3-(1-(2-(benzyloxy)-2-oxoethyl)cyclopentanecarboxamido)-4-(biphenyl-4-yl)butanoic acid (39 mg); Retention time=1.73 minutes (condition B); MS (m+1)=500.4;

Provenance & Evidence