反应详情

Using General Procedure B: Reaction of (1-tert-butoxycarbonyl-1H-Benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amine (0.269 g, 0.70 mmol) and 1-[2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-ethyl]-cyclopropanecarboxaldehyde (0.25, 1.03 mmol) with NaBH(OAc)3 (0.433 g, 2.04 mmol) in CH2Cl2 (7 mL) for 6 hours followed by purification of the crude material by column chromatography on silica gel (50:1:1 CH2Cl2—CH3OH—NH4OH) followed by radial chromatography on silica gel (1 mm plate, 100:1:1 CH2Cl2—CH3OH—NH4OH) provided 0.125 g (29%) of 2-{[{1-[2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-ethyl]-cyclopropylmethyl}-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzimidazole-1-carboxylic acid tert-butyl ester as a white foam.

1. customfollowed by purification of the crude material by column chromatography on silica gel (50:1:1 CH2Cl2—CH3OH—NH4OH)