英文别名
4a-ethoxy-2,3,6,7,8,9,9a,10-octahydro-1H,4aH-cyclopenta[b]cyclopenta[5,6]pyrano[3,2-e]pyran-1,8-dione;4a-Ethoxy-3,6,7,9,9a,10-hexahydrocyclopenta[b]cyclopenta[5,6]pyrano[3,2-e]pyran-1,8(2H,4aH)-dione;1-ethoxy-2,16-dioxatetracyclo[7.7.0.03,7.011,15]hexadeca-3(7),11(15)-diene-6,12-dione