Docetaxel 7-Epi-DAB-Impurity

Chemical Name: (2aR,4R,4aS,6R,9S,11S,12S,12aR,12bS)-12b-acetoxy-4,6,9,11-tetrahydroxy-4a,8,13,13-tetramethyl-5-oxo-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate

Smile: O[C@@H](C([C@@]1(C)[C@]([C@@]2(OC(C)=O)[C@H](OC2)C[C@H]1O)([H])[C@@H]3OC(C4=CC=CC=C4)=O)=O)C5=C(C)[C@@H](O)C[C@]3(O)C5(C)C