(5R-(5alpha,5aalpha,8aalpha,9alpha))-9-Ethoxy-5,8,8a,9-tetrahydro-5-(3,4,5-trimethoxyphenyl)furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5aH)-one 106709-55-1 Furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5aH)-one, 9-ethoxy-5,8,8a,9-tetrahydro-5-(3,4,5-trimethoxyphenyl)-, (5R-(5alpha,5aalpha,8aalpha,9alpha))- Picropodophyllin-1-ethyl ether