151310-06-4Relevant articles and documents
An investigation of nitrile transforming enzymes in the chemo-enzymatic synthesis of the taxol sidechain
Wilding, Birgit,Veselá, Alicja B.,Perry, Justin J. B.,Black, Gary W.,Zhang, Meng,Martínková, Ludmila,Klempier, Norbert
, p. 7803 - 7812 (2015)
Paclitaxel (taxol) is an antimicrotubule agent widely used in the treatment of cancer. Taxol is prepared in a semisynthetic route by coupling the N-benzoyl-(2R,3S)-3-phenylisoserine sidechain to the baccatin III core structure. Precursors of the taxol sidechain have previously been prepared in chemoenzymatic approaches using acylases, lipases, and reductases, mostly featuring the enantioselective, enzymatic step early in the reaction pathway. Here, nitrile hydrolysing enzymes, namely nitrile hydratases and nitrilases, are investigated for the enzymatic hydrolysis of two different sidechain precursors. Both sidechain precursors, an openchain α-hydroxy-β-amino nitrile and a cyanodihydrooxazole, are suitable for coupling to baccatin III directly after the enzymatic step. An extensive set of nitrilases and nitrile hydratases was screened towards their activity and selectivity in the hydrolysis of two taxol sidechain precursors and their epimers. A number of nitrilases and nitrile hydratases converted both sidechain precursors and their epimers.
A practical and stereoselective synthesis of taxol side chain
Zhou, Zhongqiang,Mei, Xingguo
, p. 723 - 728 (2007/10/03)
Apractical and efficient synthesis of taxol C-13 side chain from cheap and easily available starting material is described.
N-Benzoyl-(2R,3S)-3-Phenylisoserine Methyl Ester; A Facile and Convenient Synthesis and Resolution by Entrainment
Srivastava, Ranjan P.,Zjawiony, Jordan K.,Peterson, John R.,McChesney, James D.
, p. 1683 - 1688 (2007/10/02)
The importance of N-benzoyl (2R,3S)-phenylisoserine (3), also known as the "taxol side chain", for the strong antitumor activity of taxol (1), a potent anticancer drug, has prompted numerous efforts towards the development of a practical taxol side chain synthesis.Here we describe a highly practical and inexpensive synthesis of the taxol side chain methyl ester 4 and resolution via entrainment based on the observation that compound 4 exhibits conglomerate crystal structure.