bis(3-(4-bromophenyl)-2-((3-(tert-butyl)-4,6-dimethoxybenzofuran-7-yl)methyl)-4,6-dimethoxy-1H-indol-7-yl)methane 在
Montmorillonite K 10 clay 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到28-(4-Bromophenyl)-29,30-ditert-butyl-4,6,13,15,22,24-hexamethoxy-9,18-dioxa-27-azaheptacyclo[23.2.1.17,10.116,19.03,8.012,17.021,26]triaconta-1(28),3(8),4,6,10(30),12(17),13,15,19(29),21(26),22,24-dodecaene