Key intermediate of Paclitaxel Side Chain

   (2R,3S)-3-Phenylisoserine hydrochloride cas: 132201-32-2

   (2R,3S)-3-Phenylisoserine Ethyl Ester 

   (2R,3S)-3-Phenylisoserine Methyl Ester

   (3R,4S)-3-Hydroxy-4-phenyl-2-azetidinone cas:132127-34-5

Paclitaxel Side Chain

   Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate cas 32981-85-4

   Ethyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate

   N-Benzoyl-(2R,3S)-3-phenylisoserine  cas:132201-33-3

   (4S,5R)-3-Benzoyl-2,2-dimethyl-4-phenyloxazolidine-5-carboxylic acid cas:153652-70-1

   (2*,4S,5R)-2-(4-methoxyphenyl)-3-N-benzoyl-4-phenyloxazolidine-5-carboxylic acid

Docetaxel Side Chain

  Methyl (2R,3S)-3-(tert-butoxycarbonylamino)-2-hydroxy-3-phenylpropionate

   Ethyl (2R,3S)-N-BOC-3-phenyl Isoserine 

   (2R,3S)-3-tert-Butoxycarbonylamino-2-hydroxy-3-phenylpropion acid cas:145514-62-1

   (4S,5R)-3-(tert-Butoxycarbonyl)-2,2-dimethyl-4-phenyloxazolidine-5-carboxylic acid cas:143527-70-2

   (4S,5R)-2-(4-methoxyphenyl)-3-N-BOC-4-phenyl- 3,5 - oxazolidine carboxylic acid

    Benzyl (2R,3S)-N-BOC-3-phenyl Isoserine 

Intermediate of Etoposide Side Chain

   4,6-O-Ethylidene-D-glucopyranoside  cas:18465-50-4

   2,3-di-O-chloroacetyl-4,6-O-ethylidene-β-D-glucopyranose

Irinotecan Side Chain

   Benzyl (2R,3S)-N-BOC-3-phenyl Isoserine cas:143254-82-4

3',4'-Anhydrovinblastine  cas:38390-45-3

  4'-Demethylepipodophyllotoxin cas:6559-91-7