(3R,4S)-3-(1-ethoxyethoxy)-4-phenyl-N-Boc-2-azetidinone

(3r,4s)-1-t-butoxycarbonyl-3-(2-ethoxyethoxyl)-4-phenyl-2-azetidinone ; (3r,4s)-3-(1-ethoxyethoxy)-4-phenyl-n-boc-2-azetidinone ; docetaxel intermediate i ; (3r,4s)-1-t-butoxycarbonyl-3-(2-ethoxyethoxyl)-4-phenyl-2-azetidinone,98+% ; 3-(1-ethoxyethoxy)-2-oxo-4-phenyl-1-azetidinecarboxylic acid 1,1-dimethylethyl ester ; (3r,4s)-3-(1-ethoxyethoxy)-2-oxo-4-phenyl-1-azetidinecarboxylic acid 1,1-dimethylethyl ester ; side chains of docetaxel--1 ; (1-ethoxyethoxy)-2-oxo-4-phenyl-1-azetidinecarboxylic acid 1,1-dimethyl ethyl ester ; (3r,4s)-1-azetidinecarboxylic acid-3-(2-ethoxyethoxy)-4-phenyl-2-phenyl-azetidione ; (3r,4s)-tert-butyl 3-(1-ethoxyethoxy)-2-oxo-4-phenylazetidine-1-carboxylate