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PREPARATION OF CIS-4-O-PROTECTED-2-CYCLOPENTENOL AND CYCLOPENTANOL DERIVATIVES
PREPARATION OF CIS-4-O-PROTECTED-2-CYCLOPENTENOL AND CYCLOPENTANOL DERIVATIVES
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机译:CIS-4-O-保护的2-环戊烯醇和环戊醇衍生物的制备
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摘要
The present invention relates to a novel process for preparing cis-4-O-protected-substituted-2-cyclopentenol derivatives comprising, a) dissolving a 4-O-protected-2-cyclopentenone in a suitable organic solvent; and b) treating the solution with a suitable Lewis acid and a suitable reducing agent at a temperature of from about -100 DEG C. to about 20 DEG C. The cis-4-O-protected-substituted-2-cyclopentenol derivatives are useful intermediates in the preparation of various cyclopentanyl and cyclopentenyl purine analogs which are useful as immunosuppressants and in the preparation of various prostaglandins.
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