反应详情

The title compound was prepared following the procedure described for Example-108 using 2-[(2-chloro-6-fluorophenyl)amino]-7,7-dimethyl-7,8-dihydro-1H-furo[3,2-e]benzimidazole-5-carboxylic acid (Intermediate-15, 0.150 g, 0.400 mmol), thionyl chloride (2.0 mL), 2-amino-5-(trifluoromethyl)pyridine 1-oxide (Intermediate-41, 0.096 g, 0.600 mmol), THF (5.0 mL) and DIPEA (3 mL). The obtained crude product was purified by column chromatography on basic alumina eluting with 0.7-1.0% MeOH:DCM to afford 0.075 g of the desired product. 1HNMR (DMSO-d6): δ 1.56 (s, 6H), 3.12 (s, 2H), 7.32 (m, 2H), 7.41 (m, 1H), 7.52 (s, 1H), 7.80 (d, J=9.3 Hz, 1H), 8.67 (d, J=8.7 Hz, 1H), 8.94 (s, 1H), 9.50 (s, 1H), 11.21 (s, 1H), 12.30 (s, 1H); MS [M+H]+: 536.12.

1. customThe title compound was prepared
2. customThe obtained crude product
3. customwas purified by column chromatography on basic alumina eluting with 0.7-1.0% MeOH