Processes for preparing calanolide a and intermediates thereof
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United States of America Patent
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Issued Date -
Jun 3, 2004
app pub date -
Dec 12, 2003
filing date -
Dec 22, 2000
priority date (Note) -
Abandoned
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Abstract
The present invention provides a production method of Calanolide A according to the following method 1 wherein each symbol is as defined in the specification, as a more convenient and industrially practical method for the synthesis of Calanolide A from an easily available starting material.
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