(2’S, 3’R)-Cabazitaxel (~90%)

Benzenepropanoic acid, β-[[(1,1-dimethylethoxy)carbonyl]amino]-α-hydroxy-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-4,6-dimethoxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, (αS,βR)-; (2'S,3'R)-Cabazitaxel; (αS,βR)-β-[[(1,1-Dimethylethoxy)carbonyl]amino]-α-hydroxybenzenepropanoic acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-4,6-dimethoxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester

CO[C@H]1C[C@H]2OC[C@@]2(OC(=O)C)[C@H]3[C@H](OC(=O)c4ccccc4)[C@]5(O)C[C@H](OC(=O)[C@@H](O)[C@H](NC(=O)OC(C)(C)C)c6ccccc6)C(=C([C@@H](OC)C(=O)[C@]13C)C5(C)C)C

InChI=1S/C45H57NO14/c1-24-28(57-39(51)33(48)32(26-17-13-11-14-18-26)46-40(52)60-41(3,4)5)22-45(53)37(58-38(50)27-19-15-12-16-20-27)35-43(8,36(49)34(55-10)31(24)42(45,6)7)29(54-9)21-30-44(35,23-56-30)59-25(2)47/h11-20,28-30,32-35,37,48,53H,21-23H2,1-10H3,(H,46,52)/t28-,29-,30+,32+,33-,34+,35-,37-,43+,44-,45+/m0/s1