Psoralen-nucleoside adducts and method for their preparation
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United States of America Patent
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May 2, 1989
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N/A
app pub date -
Jun 16, 1987
filing date -
Jun 16, 1987
priority date (Note) -
Expired
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Abstract
A method for the stereoselective snythesis of a cis-syn, furan-side mono-adducted linear furocoumarin:nucleoside adduct, which comprises reacting a linear furocoumarin with a nucleophilic acid to form a 3,4-dihydro-4-substituted linear furocoumarin intermediate, and contacting the intermediate with a nucleoside under photoactivating conditions. The reaction produces a cis-syn, furan-side, mono-adducted 3,4-dihydro-4-substituted linear furocoumarin:nucleoside adduct which can then be deblocked to give the final product under mild conditions.
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