23978-65-6 Furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-10-methoxy-5-(3,4,5-trimethoxyphenyl)-, (5R-(5alpha,5abeta,8aalpha))- beta-Peltatin A methyl ether