Methods for preparing...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

Reexamination Certificate

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C548S453000

Reexamination Certificate

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10970641

ABSTRACT:
Disclosed are methods and intermediates for the preparation of 7-(2′-R1-substituted-β-D-ribofuranosyl)-4-amino-5-(optionally substituted ethyn-1-yl)-pyrrolo[2,3-d]pyrimidine compounds. These compounds are useful in treating viral infections caused by aflaviviridaefamily virus, such as hepatitis C virus. Such 7-(2′-substituted-β-D-ribofuranosyl)-4-amino-5-(optionally substituted ethyn-1-yl)-pyrrolo[2,3-d]pyrimidine compounds are represented by Formula I as follows:wherein, each of R1, R2, and R3are as defined herein.

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