Processes for preparing 1,3-dioxolane nucleosides

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen bonded directly to ring carbon of the purine ring...

Reexamination Certificate

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C544S276000, C544S277000

Reexamination Certificate

active

06855821

ABSTRACT:
Disclosed are novel processes for preparing 1,3-dioxolane nucleosides of general formula I and II:wherein B is a purine or pyrimidine base or an analog or derivative thereof. The invention also provides intermediates for use in the preparation of these compounds.

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