Paclitaxel Impurity-O

[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-1,9-dihydroxy-15-[(2R,3S)-2-hydroxy-3-phenyl-3-[[(E)-3-phenylprop-2-enoyl]amino]propanoyl]oxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate; N-Cinnamoyl-N-debenzoylpaclitaxel; N-Cinnamoyl N-Debenzoyl Paclitaxel; (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12-(Benzoyloxy)-9-(((2R,3S)-3-cinnamamido-2-hydroxy-3-phenylpropanoyl)oxy)-4,11-dihydroxy-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]oxete-6,12b-diyl Diacetate