反应详情

A solution of methyl{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}[3-(trifluoromethyl)-5-vinylbenzyl]carbamate (14 mg, 0.025 mmol) (Example 44) and Pd/C (5 mg) in THF (1 mL) and MeOH (500 μL) was placed under hydrogen. The reaction was stirred at room temperature under hydrogen for two hours. The reaction was then diluted with hexanes (25 mL), loaded on a silica gel column, and purified with 20% EtOAc/hexanes to afford methyl[3-ethyl-5-(trifluoromethyl)benzyl]{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}carbamate. Rf=0.31 (25% EtOAc/hexanes). LCMS=568.3 (M+1)+. 1H NMR (C6D6, 500 MHz, 70° C.) δ 7.72 (broad singlet, 1H), 7.34 (d, J=7.5 Hz, 1H), 7.20 (s, 1H), 7.10 (s, 1H), 7.07 (d, J=8.0Hz, 1H), 7.01 (dd, J=2.0 Hz, 8.5, 1H), 7.01 (broad singlet, 1H), 6.86 (d, J=2.5 Hz, 1H), 6.59 (d, J=8.5 Hz, 1H), 4.44 (broad singlet, 2H), 4.11 (broad singlet, 2H), 3.39 (s, 3H), 3.24 (s, 3H), 2.73 (m, 1H), 2.25 (q, J=7.5 Hz, 2H), 1.15 (d, J=7.0 Hz, 6H), 0.92 (t, J=7.5 Hz, 3H).

1. custompurified with 20% EtOAc/hexanes