1,5-Benzothiazepine derivatives and production thereof
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United States of America Patent
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Dec 25, 1984
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N/A
app pub date -
Oct 7, 1983
filing date -
Oct 7, 1983
priority date (Note) -
Expired
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Abstract
Novel 1,5-benzothiazepine derivatives having the formula; ##STR1## (wherein R.sub.1, R.sub.2 and R.sub.3 each denotes hydrogen, a halogen, a lower alkyl group, a lower alkoxy group or a hydroxy group; R.sub.4 denotes a lower alkyl group, an allyl group, a lower alkoxyalkyl group, a lower alkyl group substituted with a hydroxy group or a halogen, a lower alkylaminoalkyl group or a morpholino lower alkyl group; X denotes a halogen or hydrogen) are produced from corresponding 1,4-benzothiazine by a ring expansion reaction with trimethylhalosilane, hydrogen peroxide and water. The derivatives have analgesic, antipyretic and antiarrythmic activities.
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