C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 19/167 (2006.01) A61K 31/70 (2006.01) C07H 19/16 (2006.01)
Patent
CA 2074853
Compounds are disclosed having the formula: Image wherein R1 is selected from the group, consisting of branched, straight-chained or cyclic hydrocarbyl radicals, having from one to six carbon atoms, and radicals represented by the general formulae: Image wherein Y is selected from the group consisting of lower alkyl, lower alkoxy, carboxy-lower alkyl and halogen; Z is oxygen, sulfur or -NH, Q is -CH or nitrogen; a is zero or an integer of from one to three; n is zero or an integer of from one to three; and m is an integer of from three to six; and wherein, when R1 is a hydrocarbyl radical, it may be substituted with one or two radicals represented by the above general formula or substituted with -OR3, wherein R3 is hydrogen or lower alkyl, having from one to ten carbon atoms; R2 is selected from the group consisting of hydrogen and straight chain, branched and cyclic hydrocarbyl radicals having from one to four carbon atoms, and optionally substi- tuted with a hydroxyl radical; and wherein X is two hydrogen atoms or oxygen and B is selected from oxygen and nitrogen, and pharmaceutically acceptable salts thereof, with the proviso that when X is two hydrogen atoms, B is oxygen, and with the further proviso that when R3 is present or R1 is a branched or straight-chained hydrocarbyl radical, then R1 must be substituted with one of the above radicals, and with the still further proviso that when B is oxygen, then R1 cannot be a phenyl or a substituted phenyl radical. Pharmaceutical preparations using these compounds and a method for inducing an adenosine response mediated by the adenosine A2 receptor by administering these compounds are also disclosed.
Olsson Ray A.
Thompson Robert D.
Aderis Pharmaceuticals Inc.
Macrae & Co.
Whitby Research Incorporated
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