Cabazitaxel Impurity 1

Chemical Name: (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-Acetoxy-11-hydroxy-4,6,9-trimethoxy-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: CC(O[C@]([C@@]1([H])C[C@H](OC)[C@]2(C([C@@H]3OC)=O)C)(CO1)[C@@]2([H])[C@@H]([C@]4(C(C)(C)C3=C(C)[C@@H](OC)C4)O)OC(C5=CC=CC=C5)=O)=O