Tetrapeptide amides
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United States of America Patent
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Apr 22, 1980
Grant Date -
N/A
app pub date -
Sep 13, 1978
filing date -
Sep 29, 1977
priority date (Note) -
Expired
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Abstract
Tetrapeptide amides of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, A and B represent certain specified substituent groups and where n is 2-5, p is 1-5 and r is 1 or 2. The compounds exhibit pharmacological activity when tested in the transmurally stimulating guinea pig ileum preparation indicating their affinity for opiate receptor sites and they may therefore be used in man for those conditions where an opiate-like effect is indicated.
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