Docetaxel - Impurity A

1887057-05-7

(2b,5b,7a,10b,13a)-4-Acetoxy-13-(((2R,3S)-3-[(tert-butoxycarbonyl)amino]-2-hydroxy-3-phenylpropanoyl)oxy)-1,7,10-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl (2E)-2-Methylbut-2-enoate; 2-O-Desbenzoyl-2-O-Tiglyl Docetaxel; 2-O-Desbenzoyl-2-O-tiglyldocetaxel; 5β,20-epoxy-1,7β,10β-trihydroxy-9-oxotax-11-ene-2a,4,13a-triyl 4-acetate 13-[(2R,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-3-phenylpropanoate] 2-[(2E)-2-methylbut-2-enoate];(E)-(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-Acetoxy-9-(((2R,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-phenylpropanoyl)oxy)-4,6,11-trihydroxy-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 2-methylbut-2-enoate;