双(2-羟基-5-五甲基)-4-甲基酚 、
4-[2-[3,5-bis(bromomethyl)-4-hydroxyphenyl]propan-2-yl]-2,6-bis(bromomethyl)phenol 在
四氯化钛 作用下,
以
1,4-二氧六环 为溶剂,
反应 88.0h,
以13%的产率得到5,11,17-Trimethyl-23-[2-(25,26,27,28-tetrahydroxy-11,17,23-trimethyl-5-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaenyl)propan-2-yl]pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaene-25,26,27,28-tetrol