7,23-dioxaheptacyclo[28.2.2.213,16.15,27.19,19.04,25.010,21]octatriaconta-1(33),4,9,13(38),14,16(37),19(36),20,25,27(35),30(34),31-dodecaene 以
苯 为溶剂,
反应 3.0h,
以80%的产率得到15,31-dioxaundecacyclo[17.13.2.25,8.222,25.01,29.02,13.02,28.011,33.013,17.017,28.029,34]octatriaconta-5,7,11,18,22(36),23,25(35),37-octaene