1-[[3,5-Bis[(3-formylindol-1-yl)methyl]-2,4,6-trimethylphenyl]methyl]indole-3-carbaldehyde 在
四氯化钛 、
锌 作用下,
以
四氢呋喃 为溶剂,
以24%的产率得到(17Z)-4,6,28-trimethyl-5-[[3-[(E)-2-[1-[[(17Z)-4,6,28-trimethyl-1,9-diazahexacyclo[17.6.1.13,7.19,16.010,15.020,25]octacosa-3(28),4,6,10,12,14,16(27),17,19(26),20,22,24-dodecaen-5-yl]methyl]indol-3-yl]ethenyl]indol-1-yl]methyl]-1,9-diazahexacyclo[17.6.1.13,7.19,16.010,15.020,25]octacosa-3(28),4,6,10,12,14,16(27),17,19(26),20,22,24-dodecaene