4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenol 、
乙酰氯 、
N,N-二异丙基乙胺 以to give 0.31 g ot the title compound as a white solid, mp 90-91° C., 1H NMR (DMSO-d6): δ 1.714 (m, 2H), 1.89 (m, 2H), 2.15 (m, 4H), 2.30 (s, 3H), 5.297 (m, 1H), 7.188 (m, 1H), 7.28 (m, 3H), 7.86 (d, 1H), 7.97 (d, 2H)的产率得到4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenyl acetate