Amino acid derivatives
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United States of America Patent
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Jun 5, 1990
Issued Date -
N/A
app pub date -
Oct 17, 1988
filing date -
Jan 7, 1986
priority date (Note) -
Expired
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Abstract
Compounds of the Formula I ##STR1## wherein R.sup.1 represents phenyl, or phenyl substituted by one, or more substituents selected from the group consisting of halogen, C.sub.1-7 -alkyl, and C.sub.1-7 -alkoxy, R.sup.2 represents furanyl, thienyl, pyridyl or pyrrolyl ortho substituted with C.sub.1-7 -alkyl or halogen and wherein R.sup.3 represents 3-carboxypiperidin-1-yl, 3-carboxy-1,2,5,6-tetrahydropyridin-1-yl or 3-carboxymethyl-pyrrolidin-1-yl, pharmaceutical compositions containing effective amounts of a compound of formula I and treatment of central nervous system ailments by administering a compound of formula I.
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