8-substituted 2-(benzimidazolyl)purine derivatives for...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C514S263210, C514S263220, C514S263230, C514S263240, C544S276000, C544S277000, C544S321000, C544S323000, C544S324000, C544S326000, C544S328000, C544S332000, C549S396000, C549S399000, C549S404000

Reexamination Certificate

active

07915268

ABSTRACT:
The present invention provides novel purines useful for the prevention and treatment of autoimmune diseases, inflammatory diseases, mast cell mediated disease and transplant rejection. The compounds of the general formula I shown below, in which Q is selected from the group consisting of CX and nitrogen; and A is chosen from the group consisting of alkyl, heterocyclyl, aryl, substituted alkyl, substituted heterocyclyl, substituted aryl, and halogen:

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