Method for the preparation of esters of anhydroecgonine
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United States of America Patent
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Nov 23, 1999
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N/A
app pub date -
Nov 4, 1997
filing date -
Mar 24, 1995
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Abstract
The present invention discloses compounds of the formula any mixture thereof, or a pharmaceutically acceptable salt thereof; wherein R, R.sup.3, and R.sup.4 each have the meanings set forth in the specification. The compounds possess valuable pharmaceutical properties as dopamine reuptake inhibitors.
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