Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Reexamination Certificate
2004-11-17
2010-06-08
Wilson, James O (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
Reexamination Certificate
active
07732599
ABSTRACT:
Process for the preparation of tetrahydrobiopterin from neopterin and/or 6-substituted pterins with an improved yield and a high stereoselectivity. Also disclosed herein are novel individual intermediates prepared in the preparation of tetrahydrobiopterin, such as selectively protected neopterin useful for the preparation of tetrahydrobiopterin.
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Groehn Viola
Martin Pierre
Moser Rudolf
Schumacher Andreas
Spielvogel Dirk
BioMarin Pharmaceutical Inc.
Jones Day
Leeser Erich A
Merck Eprova AG
Wilson James O
LandOfFree
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