英文别名
                        4,4,9,9-Tetraethoxy-2,3,4,7,8,9-hexahydro-1,1,3,3,6,6,8,8-octamethyl-1H,6H-cyclopenta[b]cyclopenta[5,6]pyrano[3,4-d]pyran;8,8,16,16-tetraethoxy-3,3,5,5,11,11,13,13-octamethyl-7,15-dioxatetracyclo[7.7.0.02,6.010,14]hexadeca-1(9),2(6),10(14)-triene