Pyrrolidine derivatives
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United States of America Patent
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Oct 25, 1994
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app pub date -
Nov 15, 1993
filing date -
Nov 30, 1991
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Abstract
This invention relates to new pyrrolidine derivatives represented by formula (I) as below, having superior pharmacological activity as antihypertensive agents ##STR1## wherein R.sup.1 is saturated or unsaturated alkyl of 2 to 20 carbon atoms, or aryl group; R.sup.2 is saturated or unsaturated alkyl of 1 to 17 carbon atoms, or aryl group; R.sup.3 is hydrogen atom, saturated or unsaturated alkyl of 1 to 20 carbon atoms, or aryl group or its derivatives: and X is oxygen or sulfur atom.
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