反应详情

Following the procedure as described in Example 150 step 3 and making variations as required to replace methyl 6-(adamantan-1-ylmethoxy)-5-chloronicotinate with methyl 5-chloro-2-fluoro-4-((3,5,7-trifluoroadamantan-1-yl)methoxy)benzoate. Purification by silica gel column chromatography (10:1 hexanes:ethyl acetate) gave the title compound as a colorless solid (0.57 g, 62%): 1H NMR (300 MHz, CDCl3) 7.49 (d, J=8.2 Hz, 1H), 6.51 (d, J=12.6 Hz, 1H), 3.87 (s, 3H), 3.81 (s, 2H), 2.24-2.14 (m, 3H), 2.14-2.04 (m, 3H), 1.99-1.88 (m, 1H), 1.86-1.79 (m, 6H), 0.96-0.88 (m, 2H), 0.66-0.58 (m, 2H); MS (ES+) m/z 413.2 (M+1).

1. customPurification by silica gel column chromatography (10:1 hexanes:ethyl acetate)