Paclitaxel EP Impurity K

Chemical Name: (αR,βS)-β-(Benzoylamino)-α-7-O-(Triethylsilyl) Paclitaxel ;hydroxy-benzenepropanoic Acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-Bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-4-[(triethylsilyl)oxy]-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl Ester; 7-O-(Triethylsilyl)paclitaxel; 7-O-(Triethylsilyl)taxol; (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-9-(((2R,3R)-3-benzamido-2-hydroxy-3-phenylpropanoyl)oxy)-12-(benzoyloxy)-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-4-((triethylsilyl)oxy)-3,4,4a,5,6,9,10,11,12,12a-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)-diyl diacetate

Smile: CC(O[C@@]1([C@@H](C[C@@H]2O[Si](CC)(CC)CC)OC1)[C@@]([C@@]2(C3=O)C)([H])[C@@H]([C@@](C4(C)C)(C[C@H](OC([C@H](O)[C@H](C5=CC=CC=C5)NC(C6=CC=CC=C6)=O)=O)C(C)=C4[C@H]3OC(C)=O)O)OC(C7=CC=CC=C7)=O)=O