3-carboalkoxy-2, 3-dihydro-1H-phenothiazin-4[10H]-one derivatives
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Oct 27, 1997
filing date -
Oct 27, 1997
priority date (Note) -
Expired
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Abstract
Phenothiazines of the formula: ##STR1## where R.sub.1 is H or --COOR, where R is selected from the group consisting of branched or unbranched alkyl groups containing from 1 to 4 carbon atoms, and where X is selected from H, branched or unbranched alkyl groups containing from 1 to 4 carbons, and halogen, and pharmaceutically acceptable salts thereof. Particularly preferred phenothiazines are those wherein X is hydrogen, chloro, bromo or methyl, R.sub.1 is COOR, and R is methyl, ethyl or t-butyl.
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