7-O-(Triethylsilyl)-2’-O-tert-butyl(dimethyl)silyl-4-desacetyl-2-debenzoyl-[2,4]oxol Paclitaxel

Chemical Name: (αR,βS)-β-[Benzoylamino]-α-[[(1,1-dimethylethoxy)carbonyl]oxy]-benzenepropanoic Acid (2aS,3R,5S,5aS,7R,10S,12S,12aS,12bR)-2a,7-Bis(acetyloxy)-2a,3,4,5,5a,6,7,10,11,12,12a,12b-dodecahydro-3,12-dihydroxy-5a,9,13,13-tetramethyl-6-oxo-5-[(triethylsilyl)oxy]-8,12-methano-2H-cyclodec[cd]isobenzofuran-10-yl Ester;(2aS,2a1R,3R,5S,5aS,7R,10S,12S,12aS)-7-acetoxy-2a,3,12-trihydroxy-5a,9,13,13-tetramethyl-6-oxo-5-((triethylsilyl)oxy)-2a,2a1,3,4,5,5a,6,7,10,11,12,12a-dodecahydro-2H-8,12-methanocyclodeca[cd]isobenzofuran-10-yl (2R,3R)-3-benzamido-2-((tert-butyldimethylsilyl)oxy)-3-phenylpropanoate;

Smile: O[C@H](C[C@@H]1O[Si](CC)(CC)CC)[C@]2(O)[C@@]([C@@]1(C3=O)C)([H])[C@H](OC2)[C@@](C4(C)C)(C[C@H](OC([C@H](O[Si](C(C)(C)C)(C)C)[C@@H](C5=CC=CC=C5)NC(C6=CC=CC=C6)=O)=O)C(C)=C4[C@H]3OC(C)=O)O