Asymmetric synthesis of taxol side chain

Details Asymmetric synthesis of taxol side chain Asymmetric synthesis of taxol side chain

C - Chemistry, Metallurgy

07

F

C07F 7/10 (2006.01) C07D 205/08 (2006.01) C07D 405/12 (2006.01) C07F 7/18 (2006.01)

Patent

CA 2071160

CT-2152 ABSTRACT The present invention relates to a process for the preparation of (3R, 4S)-3-hydroxy-4-phenyl-2- azetidinone derivatives which are useful intermediates in the synthesis of taxol from baccatin III, and to compounds of formula (III) which are produced in said process: Image wherein Ar is phenyl; R1 is hydrogen, an acyl radical of a carboxylic acid, or a carbonic acid ester radical; R2 is hydrogen or a carboxy protecting group; and R3 is hydrogen or a hydroxy protecting group.

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