5,13,19,25,31,37-Hexatert-butyl-39,40,41,42-tetramethoxy-9-oxaoctacyclo[33.3.1.17,11.117,21.123,27.129,33.03,8.010,15]tritetraconta-1(39),3(8),4,6,10(15),11,13,17(42),18,20,23(41),24,26,29,31,33(40),35,37-octadecaen-43-one 在
lithium aluminium tetrahydride 、
四氯化钛 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以28%的产率得到5,13,19,25,31,37-Hexatert-butyl-43-(5,13,19,25,31,37-hexatert-butyl-39,40,41,42-tetramethoxy-9-oxaoctacyclo[33.3.1.17,11.117,21.123,27.129,33.03,8.010,15]tritetraconta-1(39),3(8),4,6,10(15),11,13,17(42),18,20,23(41),24,26,29,31,33(40),35,37-octadecaen-43-ylidene)-39,40,41,42-tetramethoxy-9-oxaoctacyclo[33.3.1.17,11.117,21.123,27.129,33.03,8.010,15]tritetraconta-1(39),3(8),4,6,10(15),11,13,17(42),18,20,23(41),24,26,29,31,33(40),35,37-octadecaene