Side chain of taxol：

CAS NO.

(3R,4S)-3-hydroxy-4-phenyl-2-azetidinone

132127-34-5

(3R,4S)-1-benzoyl-4-phenyl-3-(triethylsilyloxy)azetidin-2-one

149249-91-2

(3R,4S)-tert-butyl 3-(1-ethoxyethoxy)-2-oxo-4-phenylazetidine -1-carboxylate

201856-57-7

(3R,4S)-tert-butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate

149198-47-0

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

201856-53-3

(4S,5R)-3-(tert-butoxycarbonyl)-2,2-dimethyl-4-phenyloxazolidine-5-carboxylic acid

143527-70-2

(2R,4S,5R)-2-(4-methoxyphenyl)-N-benzoyl-4- phenyloxazolidine-5-carboxylic acid

157826-10-3

(2R,3S)-3-Phenylisoserine hydrochloride

132201-32-2

(2R,3S)-N-tert-butoxycarbonyl-3-Phenylisoserine Methyl Ester

124605-42-1