Oxazine compounds
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United States of America Patent
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Jul 14, 1998
Issued Date -
N/A
app pub date -
May 26, 1995
filing date -
Apr 25, 1989
priority date (Note) -
Expired
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Abstract
Substituted 1,2 oxazine compounds having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen; C.sub.1-8 alkyl; carboxyl; C.sub.1-8 alkoxycarbonyl or optionally substituted phenyl or R.sub.1 and R.sub.2 together form a C.sub.3-6 alkylene bridge.
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