1',1''-diethyl-9,13,17,19,29,33,37,39-octamethyldispiro<1,7,21,27-tetraoxa-4,24-diaza<7.1.7.1>paracyclophane-14,4':34,4''-bispiperidine> 、
1-benzyloxycarbonyl-4,4-bis<4-(chloroformylmethoxy)-3,5-dimethylphenyl>piperidine 以
甲苯 为溶剂,
反应 2.0h,
以38%的产率得到1'-benzyloxycarbonyl-1'',1'''-diethyl-6,12,22,28,37,43,48,51,52,55,56,59-dodecamethyl-2,16-dioxotrispiro<4,14,20,30,35,45-hexaoxa-1,17-diazaoctacyclo<15.15.15.2
5,8.2
10,13.2
21,24.2
26,29.2
36,39.2
41,44>nonapentaconta-5,7,10,12,21,23,26,28,36..>