Cabazitaxel Impurity 8

Chemical Name: (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-Acetoxy-9-(((2R,3S)-3-(N-(tert-butoxycarbonyl)pivalamido)-2-hydroxy-3-phenylpropanoyl)oxy)-11-hydroxy-4,6-dimethoxy-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([C@H](O)[C@H](C1=CC=CC=C1)N(C(C(C)(C)C)=O)C(OC(C)(C)C)=O)O[C@@H]2C(C)=C([C@@H](OC)C([C@@]3(C)[C@]([C@@]4(OC(C)=O)[C@H](OC4)C[C@@H]3OC)([H])[C@@H]5OC(C6=CC=CC=C6)=O)=O)C(C)(C)[C@@]5(O)C2