(3α,5β)-3,24-bis(3-bromophenoxy)cholane 在
[Pd(dibenzylideneacetone)2]
R-(+)-1,1'-联萘-2,2'-双二苯膦 、
sodium t-butanolate 作用下,
以
1,4-二氧六环 为溶剂,
反应 33.0h,
生成 (3S,6S,7R,10R,11S,14R,15S,18R,19R,40S,43S,44R,47R,48S,51R,52S,55R,56R)-6,14,19,43,51,56-hexamethyl-2,23,39,60-tetraoxa-29,33,66,70-tetrazatridecacyclo[69.3.1.13,7.124,28.134,38.140,44.161,65.06,11.010,15.014,18.043,48.047,52.051,55]octaconta-1(74),24,26,28(79),34(78),35,37,61,63,65(76),71(75),72-dodecaene