5-(2,2-Dibromoethenyl)hexacyclo[16.8.0.02,11.03,8.012,17.019,24]hexacosa-1(18),2(11),3(8),4,6,9,12,14,16,19,21,23,25-tridecaene 以7%的产率得到Octacyclo[19.5.2.02,7.08,25.09,14.015,24.018,23.022,26]octacosa-1(26),2,4,6,8(25),9,11,13,15(24),16,18(23),19,21,27-tetradecaene