p. 1149 - 1152
(2007/10/03)4'-demethyl-4'-O-(benzoyloxycarbonyl)epipodophyllotoxin
Carbonic acid benzyl ester 4-((5R,5aR,8aR,9S)-9-ethylsulfanyl-6-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl)-2,6-dimethoxy-phenyl ester