9-Benzylidene-9H-xanthene 、
13-phenylnaphtheno(K1)xanthene-1,4-dione 反应 6.0h,
以0.30 g的产率得到5,22-diphenyl-13,30-dioxanonacyclo[21.11.1.16,14.02,21.04,19.07,12.024,29.031,35.018,36]hexatriaconta-1(35),2(21),4(19),5,7,9,11,14,16,18(36),22,24,26,28,31,33-hexadecaene-3,20-dione