Method for preparing phenyl acetic acid derivatives

Details Method for preparing phenyl acetic acid derivatives Method for preparing phenyl acetic acid derivatives

2011-03-29

2011-03-29

Chang, Celia (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07915421

ABSTRACT:
Method for preparing (S)(+)phenyl acetic acid derivatives having the general formula (I):wherein R1is a linear or branched alkyl group with 1-6 carbon atoms or substituted benzyl group, and R2is methyl, ethyl or propyl group said method, characterised in that a compound of the general formula (II):wherein R1is as given above, and R3is a nucleofuge, or a suitable salt of a compound of the general formula (II) is reacted with a compound having the general formula (III):wherein R2is as given above, and R4is hydrogen or a nucleofuge that can be removed hydrolytically, and the protective group R4that may be present, may be subsequently removed hydrolytically.

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Nucleofuge Web deifinition, chemiPlus p. 1 (2010).
Nucleofuge Web definition, Chem dictionary p. 1 (2010).
Stn. Exhibit I p. 1 (2010).

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