Etoposide EP Impurity C

Chemical Name: (5R,5aR,8aR,9S)-9-[[4,6-O-[(1R)-ethane-1,1-diyl]-a-D-glucopyranosyl]oxy]-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydro[2]benzofuro[5,6-f][1,3]benzodioxol-6(5aH)-one (α-etoposide),

Smile: O=C1[C@@]([C@H](C2=CC(OC)=C(O)C(OC)=C2)C3=C4C=C(OCO5)C5=C3)([H])[C@]([C@@H]4O[C@@H]6[C@@H]([C@H]([C@@H]([C@@H](CO7)O6)O[C@@H]7C)O)O)([H])CO1