反应详情

Method B (20 h at 80° C.); starting materials: 8-(5-bromopentyloxy)-2,3-dihydro-7-methoxy-cyclopenta[c][1]benzopyran-4(1H)-one (example 85) and 4-phenylpiperidine; yield 37%; fusion point 103°-105° C. (from isopropanol and TBME). Fumarate: method E; yield 94%; fusion point 176°-178° C. (from isopropanol and TBME).

1. customMethod B (20 h at 80° C.)