Adenosine receptor (AR) antagonists belong to two major groups of compounds: xanthines and non-xanthines. Recently several annelated xanthine derivatives have been described as selective A(1), A(2A), A(2B) and A(3) ARs antagonists. Contrary to dipropyl derivatives, in the group of dimethyl (un)substituted arylalkyl pyrimido[2,1-f]purindiones selective mainly adenosine A(2A) receptor antagonists were identified. Their activity depended on aryl substitution and its distance from pyrimido[2,1-f]purindione.

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http://dx.doi.org/10.1016/s0223-5234(03)00051-5DOI Listing

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