(-)-4'-Demethylepipodophyllotoxin 4'-Demethylepipodophyllotoxin 6559-91-7 AIDS-029687 AIDS029687 Epipodophyllotoxin, 4'-demethyl- Furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one, 5,8,8a,9-tetrahydro-9-hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)-, (5R,5aR,8aR,9S)-