Paclitaxel Impurity 1

Chemical Name: Benzenepropanoic acid, α-​hydroxy-​β-​[(2-​methyl-​1-​oxopropyl)​amino]​-​, (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-​4,​11-​dihydroxy-​4a,​8,​13,​13-​tetramethyl-​5-​oxo-​7,​11-​methano-​1H-​cyclodeca[3,​4]​benz[1,​2-​b]​oxet-​9-​yl ester, (αR,​βS)​-; Benzenepropanoic acid, α-hydroxy-β-[(2-methyl-1-oxopropyl)amino]-, 6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, [2aR-[2aα,4β,4aβ,6β,9α(αR*,βS*),11α,12α,12aα,12bα]]-; Canadensol

Smile: CC(O[C@@]1([C@@H](C[C@@H]2O)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(C(C)C)=O)=O)C(C)=C4[C@H]3OC(C)=O)O)OC(C6=CC=CC=C6)=O)=O