Pyrimidine acyclonucleoside derivatives
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United States of America Patent
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Mar 30, 1999
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N/A
app pub date -
Jan 4, 1996
filing date -
Feb 28, 1994
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Expired
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Abstract
The present invention relates to novel pyrimidine acyclonucleoside derivatives represented by the following general formula (I), antiviral agents containing the derivatives as the active ingredients and processes of preparation thereof. ##STR1## wherein R.sup.1 is ethyl or isopropyl; R.sup.2 is (3,5 dimethylphenyl)selenenyl; R.sup.3 is phenyl or methyl; X is oxygen; and Y is oxygen.
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