Intermediates for synthesis of vitamin D derivatives
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United States of America Patent
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Oct 6, 2009
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N/A
app pub date -
Feb 18, 2004
filing date -
Feb 25, 2003
priority date (Note) -
Expired
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Abstract
The present invention provides a novel intermediate for synthesizing vitamin D derivatives by using a less expensive material. That is, the present invention provides a compound which is synthesized by using carvone as a starting material and which is represented by the following formulae.
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