Chemotherapeutic pyrrolocarbazole derivatives
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United States of America Patent
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Feb 24, 1998
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N/A
app pub date -
Jan 22, 1997
filing date -
Aug 4, 1994
priority date (Note) -
Expired
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Abstract
Compounds represented by the Formula I: ##STR1## wherein: R.sup.1 is hydrogen or lower alkyl; R.sup.2 is heteroaryl; and R.sup.3 and R.sup.4 are independently hydrogen or lower alkyl; and the pharmaceutically acceptable salts thereof, are useful as chemotherapeutic agents.
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