反应详情

Trifluoroacetic acid (5 mL) was added in one portion to a stirred solution of 1,1-dimethylethyl 2-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethyl]-5-(4-iodophenyl)-3-({[4-(methyloxy)phenyl]methyl}oxy)pentanoate (261 mg, 0.390 mmol) in dichloromethane (5 mL) at room temperature under nitrogen. The resulting solution was stirred for 45 min then the volatiles evaporated to give the title compound (192 mg, 100%) as a yellow solid which was a mixture of diastereomers. LC/MS: 3.32 min; z/e 493, calcd (M+1) 493. 1H NMR (400 MHz: CDCl3): 7.85 (4H), 7.55 (2H), 6.95 (2H), 4.90 (1H), 3.80-3.50 (3H), 2.70-2.20 (3H), 1.85 (2H), 1.55 (2H).

1. customthe volatiles evaporated