Abstract:
:This paper describes the synthesis and characterization of N5-(hetero)arylalkyl-substituted-thiazolo [5,4-d]pyrimidine-5,7-diamine derivatives (4-19) as novel human (h) A2A adenosine receptor (AR) inverse agonists. Competition binding and cyclic AMP assays indicate that the examined compounds behave as hA2A AR inverse agonists showing binding affinity values in the nanomolar or subnanomolar range. Notably, compounds 4, 5, 6 and 11 showed two affinity values for the hA2A ARs with the highest (KH) falling in the femtomolar range and the lowest (KL) of the nanomolar order. In addition, in cyclic AMP assays, compounds 4, 5, 6 and 11 exhibited potency (IC50) values in the picomolar range. This study has confirmed that 2-(2-furanyl)thiazolo [5,4-d]pyrimidine-5,7-diamine-based derivatives represent a unique new class of hA2A AR inverse agonists.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Varano F,Catarzi D,Vincenzi F,Falsini M,Pasquini S,Borea PA,Colotta V,Varani Kdoi
10.1016/j.ejmech.2018.06.020subject
Has Abstractpub_date
2018-07-15 00:00:00pages
552-561eissn
0223-5234issn
1768-3254pii
S0223-5234(18)30511-7journal_volume
155pub_type
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