Process for the preparation of heteroaryl-phenylalanines
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United States of America Patent
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Sep 10, 2002
Grant Date -
Mar 7, 2002
app pub date -
Jun 21, 1999
filing date -
Dec 24, 1996
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Abstract
A process for the preparation of heteroaryl-phenylalanines of formula (II) in which R is a hydrogen atom, a straight or branched C.sub.1 -C.sub.4 alkyl groups or a benzyl group; R.sub.1 is an optionally substituted 5 or 6 membered aromatic heterocyclic group with one or two heteroatoms selected among nitrogen, oxygen and sulphur; comprising a cross-coupling reaction among heteroaryl-zinc halide and phenylalanine derivatives is described. Compounds of formula (II) are intermediates useful for the preparation of compounds endowed with pharmacological activity. ##STR1##
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