反应详情

The title compound was prepared following the procedure as described for Example-177 using 7-[(2,6-dichlorophenyl)amino]-2-methyl-8H-imidazo[4,5-e][1,3]benzoxazole-4-carboxylic acid (Intermediate-55, 0.100 g, 0.276 mmol), benzene (4 mL), thionyl chloride (5.0 mL), 4-tert-butylaniline (0.123 g, 0.828 mmol), THF (5.0 mL) and 60% NaH (0.033 g, 0.825 mmol). The obtained product was further purified by column chromatography on neutral alumina eluting with 1.5-2.0% MeOH:DCM to afford 0.015 g of the desired product. 1HNMR (DMSO-d6): δ 1.28 (s, 9H), 2.65 (s, 3H), 6.54 (s, 1H), 7.37 (d, J=7.8 Hz, 3H), 7.60-7.68 (m, 4H), 9.43 (s, 1H), 9.93 (s, 1H), 11.56 (s, 1H); MS [M+H]+: 508.57.

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