英文名称
10,16-diacetyloxy-1'-oxospiro[13-oxapentacyclo[12.8.0.03,12.04,9.017,22]docosa-1(14),3(12),4,6,8,10,15,17,19,21-decaene-2,3'-2-benzofuran]-5'-carboxylic acid;10,16-diacetyloxy-3'-oxospiro[13-oxapentacyclo[12.8.0.03,12.04,9.017,22]docosa-1(14),3(12),4,6,8,10,15,17,19,21-decaene-2,1'-2-benzofuran]-5'-carboxylic acid