Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen bonded directly to ring carbon of the purine ring...
Reexamination Certificate
2007-03-13
2007-03-13
Berch, Mark L. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen bonded directly to ring carbon of the purine ring...
Reexamination Certificate
active
11131646
ABSTRACT:
Novel processes towards the synthesis of the antiviral valomaciclovir stearate in which an esterified guanine acetal is reduced to the corresponding alcohol, reacted with an activated amino acid and N-deprotected. The esterified guanine acetal is prepared from a 9-guanine derivative bearing an acyclic hydroxymethylbutylacetal. The processes are amendable to one-pot reactions.
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Bellettini John
Chang Sou-Jen
Curty Cynthia B.
Hannick Steven M.
Leanna M. Robert
Berch Mark L.
Birch & Stewart Kolasch & Birch, LLP
Medivir AB
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