反应详情

The title compound was prepared following the procedure as described for Example-177 using 7-[(2-chloro-6-fluorophenyl)amino]-2-methyl-8H-imidazo[4,5-e][1,3]benzoxazole-4-carboxylic acid (Intermediate-56, 0.050 g, 0.138 mmol), thionyl chloride (2.0 mL), 4-fluoro aniline (0.052 g, 0.138 mmol), THF (5.0 mL) and 60% NaH (0.017 g, 0.692 mmol). The obtained product was further purified by column chromatography on neutral alumina eluting with 1.5-2.0% MeOH: DCM to afford 0.020 g of the desired product. 1HNMR (DMSO-d6): δ 2.65 (s, 3H), 7.20 (t, J=7.8 Hz, 2H), 7.40-7.46 (m, 3H), 7.63 (s, 1H), 7.80-7.82 (m, 2H), 9.34 (s, 1H), 10.08 (s, 1H), 11.63 (s, 1H); MS [M−H]−: 452.23.

1. customThe title compound was prepared
2. customThe obtained product was further purified by column chromatography on neutral alumina eluting with 1.5-2.0% MeOH