meso-tetramethyltetrakis(3-hydroxyphenyl)calix[4]pyrrole 、
二溴甲烷 在
potassium carbonate 作用下,
以
二甲基亚砜 为溶剂,
反应 3.0h,
以10%的产率得到(1R,6S,20R,25S)-1,6,20,25-tetramethyl-12,14,31,33-tetraoxa-43,46,53,54-tetrazaundecacyclo[23.13.4.46,20.12,5.17,11.115,19.121,24.126,30.134,38.139,42.147,50]tetrapentaconta-2,4,7(52),8,10,15,17,19(51),21,23,26(45),27,29,34,36,38(44),39,41,47,49-icosaene