反应详情

Method A (9 h at 60° C.); starting materials: 6-[3-(methanesulfonyloxy)propoxy]-7-methoxy-3,4-dimethyl-2H-1-benzopyran-2-one (example 75) and 4-phenylpiperidine; yield 64%; fusion point 152°-153° C. (from ethanol and isopropanol). Fumarate (×0.5 C4H4O4): method E; yield 92%; fusion point 209°-210° C. (from ethanol and methanol).

1. customMethod A (9 h at 60° C.)