Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2005-09-27
2005-09-27
Wilson, James O. (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S026710, C536S124000, C536S026800, C536S027630, C536S022100, C536S027100, C536S027130, C536S027210, C536S027600, C536S027610, C536S028100, C536S055300, C514S043000, C514S045000, C544S277000, C544S265000, C548S253000
Reexamination Certificate
active
06949640
ABSTRACT:
2-Chloro-9-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-9H-purin-9-amine is synthesized by reacting a 2-chloro-6-substituted purine with a protected and activated 2-deoxy-2-fluoro-D-arabinofuranose; and reacting with a base such as ammonia to provide 2-chloro-9-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-9H-purin-6-amine. When the purine reactant is substituted in the 6 position with a halogen, a reaction step with an alkoxide is carried out prior to the reaction with ammonia.
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Fowler Anita T.
Montgomery John A.
Secrist, III John A.
Connolly Bove & Lodge & Hutz LLP
Khare Devesh
Southern Research Institute
Wilson James O.
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