154306-81-7Relevant articles and documents
Practical synthesis of taxol side chain
Ha, Hyun-Joon,Park, Gha-Seung,Ahn, Young-Gil,Lee, Gwan Sun
, p. 1619 - 1622 (2007/10/03)
Practical large scale synthesis of N-benzoyl-(2R,3S)-phenylisoserine methyl ester of the Taxol side chain has been attained from the coupling of chiral imine of N-[(S)-methylbenzyl]benzaldimine with (Z)-α-methoxy trimethylsilyl ketene acetal followed by the sequential reactions of lactamization, demethylation, methanolysis and N-benzoylation.
Process for the preparation of β-phenylisoserine and its analogues
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, (2008/06/13)
This invention relates to a method for preparing β-phenylisoserine and analogues thereof having general formula (I) STR1 from an aromatic aldehyde and an α-methylarylamine-S, and through a lactam of general formula (II) as described herein. The acids of g
Method for the preparation of β-phenylisoserine derivatives
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, (2008/06/13)
Method for the preparation of β-phenylisoserine derivatives of general formula (I) involving the action of an anhydride and hydrogen with a product of general formula (II). The products of general formula (I) are especially useful in the preparation of taxoids having outstanding antitumour properties. In general formulae (I) and (II), Ar is an aryl radical, Ph is a phenyl radical or an optionally substituted α or β-naphtyl, R is a hydrogen atom or an alkyl radical optionally substituted by a phenyl radical and R1 is an optionally substituted phenyl radical or a R2 --O radical wherein R2 is an alkyl, alkenyl, cycloalkyl, phenyl or heterocyclyl. STR1
A Practical Access to Chiral Phenylisoserinates, Preparation of Taxotere Analogs
Bourzat, Jean Dominique,Commercon, Alain
, p. 6049 - 6052 (2007/10/02)
A practical diastereoselective synthesis of phenylisoserine methyl esters 8a-c is described using α-methyl-benzylamine as the chiral template of a Staudinger reaction.Optically pure diastereoisomers 6a-c were easily recovered by crystallization.After opening of these intermediate azetidinones by hydrochloric acid and methanol, regioselective cleavage of the chiral auxiliary was achieved by hydrogenation over palladium.Phenylisoserinates 8b,c were used to prepare analogs of Taxotere.