1-[[4-[(3-Formylindol-1-yl)methyl]-2,5-dimethoxyphenyl]methyl]indole-3-carbaldehyde 在
吡啶 、
四氯化钛 、
锌 作用下,
以
四氢呋喃 为溶剂,
以23%的产率得到(11Z,35Z)-23,47,49,53-tetramethoxy-3,20,27,44-tetrazaundecacyclo[44.2.2.222,25.13,10.113,20.127,34.137,44.04,9.014,19.028,33.038,43]hexapentaconta-1(48),4,6,8,10(56),11,13(55),14,16,18,22(54),23,25(53),28,30,32,34(52),35,37(51),38,40,42,46,49-tetracosaene