(2S,4S,6S,8S)-2,4,6,8-tetraethyl-16,34,54,74-tetramethoxy-1,3,5,7(1,3)-tetrabenzenacyclooctaphane-14,36,56,76-tetrayl tetrakis(((S)-1-phenylethyl)carbamate) 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以83%的产率得到2,8,14,20-tetraethyl-4,10,16,22-tetrahydroxy-6,12,18,24-tetramethoxycalix[4]arene