Synonyms: 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,21(4H,8H,23H)-trione,5,6,11,12,13,14,15,16,17,18,19,20,24,25,26,26a-hexadecahydro-5,19,20-trihydroxy-3-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propenyl)-(9CI); Tsukubamycin A