(8E)-19,22,27,30-tetraoxa-1,16-diazatetracyclo[14.8.8.13,7.110,14]tetratriaconta-3,5,7(34),8,10(33),11,13-heptaene-2,15-dione 以
正丁醇 为溶剂,
以52%的产率得到(8Z)-19,22,27,30-tetraoxa-1,16-diazatetracyclo[14.8.8.13,7.110,14]tetratriaconta-3,5,7(34),8,10(33),11,13-heptaene-2,15-dione