Process for preparing N6 substituted aminopurine...

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

Reexamination Certificate

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C536S027300, C536S124000

Reexamination Certificate

active

10471682

ABSTRACT:
An improved process for preparing N6 -substituted aminopurine ribofuranose nucleosides. Compounds of this type are known to be usefull in the prepartation of compounds having activitity at adenosine receptors, e.g. Adenosine A1 receptor. The process comprises the step of reacting a 6-halopurine ribofuranose nucleoside with an amine in the presence of CaCO3 , wherein acid is added to the reaction mixture.

REFERENCES:
patent: 6492348 (2002-12-01), Bays et al.
patent: 6677316 (2004-01-01), Bays et al.
patent: 0 322 242 (1989-06-01), None
patent: 97/43300 (1997-11-01), None
patent: 98/01426 (1998-01-01), None
patent: 98/01459 (1998-01-01), None
patent: 98/16539 (1998-04-01), None
patent: 99/24449 (1999-05-01), None
patent: 99/24450 (1999-05-01), None
patent: 99/24451 (1999-05-01), None
patent: 99/67262 (1999-12-01), None
patent: 00/75158 (2000-12-01), None
Fleysher, M. H. et al., “Synthesis and Biological Activity of Some New N6-Substituted Purine Nucleosides,”J. Med. Chem., vol. 12, 1969, pp. 1056-1061.
Fleysher, M. H., “N6-Substituted adenosines: synthesis, biological activity, and some structure-activity relationships,”Journal of Medicinal Chemistry, vol. 15, No. 2, 1972, pp. 187-191.
Fleysher, M.H. et al., “Some Short-Chain N6-Substituted Adenosine Analogues with Antitumor Properties,”J. Med. Chem., vol. 23, 1980, pp. 1448-1452.
Kwatra, M.M., et al., “N6-Phenlyadenosines: Profound Effect of Phenyl Substituents on Affinity for A2 Adenosine Receptors,”J. Med. Chem., vol. 30, 1987, pp. 954-956.
Gallo-Rodriguez, C., et al., “Structure Activity Relationships of N6-Benzyladenosine-5′-uronamides as A3 Selective Adenosine Agonists,”Journal of Medicinal Chemistry, vol. 37, No. 5, Mar. 4, 1994, pp. 636-646.

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