4-substituted-3-(2-amino-2-cycloalkyl methyl)-acetamido azetidin-2-one derivatives as cysteine proteinase regulators
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Jun 29, 1999
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Sep 22, 1997
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Sep 23, 1996
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Abstract
In accordance with the present invention, there are provided 4-substituted-3-(2-amino-2-cycloalkyl methyl)-acetamido azetidin-2-one derivatives of the formula: ##STR1## wherein n is 1, 2 or 3; in which R.sub.1, R.sub.2 and R.sub.3 are as defined herein, and salts thereof, which exhibit excellent cysteine proteinase inhibitory activity and which can be used for treatment of different diseases such as muscular dystrophy, myocardial infarction, bone resorption, arthritis, cancer metastasis, pulmonary emphysema, septic shock, cerebral ischemia, memory function, Alzheimer and cataract, malaria, glomerular basement membrane degradation, bacterial infection, inflammatory diseases, parasitic infections, and viral infections.
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