Docetaxel Impurity 20

Chemical Name: 13,14-Anhydro-10-desacetyl Baccatin ; (2aR,4S,4aS,6R,11S,12S,12aR,12bS)-12b-acetoxy-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxo-2a,3,4,4a,5,6,11,12,12a,12b-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl benzoate

Synonym: methyl (Z)-3-(hydroxy(phenyl)methylene)-2-oxoindoline-6-carboxylate

Smile: CC(O[C@@]1([C@](C[C@@H]2O)([H])OC1)[C@@]([C@@]2(C3=O)C)([H])[C@@H]([C@@](C4(C)C)(C=CC(C)=C4[C@H]3O)O)OC(C5=CC=CC=C5)=O)=O