哌啶 、 (S)-2,8-bis-(tert-butyldimethylsilanyloxy)-5-[4-(3-iodo-propoxy)-phenyl]-11,12-dihydro-5H-6,13-dioxa-benzo[3,4]cyclohepta[1,2-a]naphthalene 在
potassium hydrogencarbonate 作用下,
以
乙腈 为溶剂,
以83%的产率得到tert-butyl-[[(19S)-5-[tert-butyl(dimethyl)silyl]oxy-19-[4-(3-piperidin-1-ylpropoxy)phenyl]-8,18-dioxatetracyclo[9.8.0.02,7.012,17]nonadeca-1(11),2(7),3,5,12(17),13,15-heptaen-15-yl]oxy]-dimethylsilane