Etoposide EP Impurity D

Chemical Name: (5R,5aR,8aR,9S)-9-(b-d-glucopyranosyloxy)-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydro[2]benzofuro-[5,6-f][1,3]benzodioxol-6(5aH)-one (lignan P)

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](CO)O6)O)O)O)([H])CO1