The present invention provides compounds of the formula
wherein Ar, R and R
1
have a meaning as defined herein in the specification. Compounds of formula (I) are agonists of the A
3
adenosine receptor and, thus, may be employed for the treatment of conditions mediated by the A
3
adenosine receptor. Accordingly, the compounds of formula (I) may be employed for treatment of behavioral depression, cerebral ischemia, hypotension, chemically induced seizures, inflammatory diseases, asthma, and cancer diseases expressing the adenosine A
3
receptor.
Nucleosides. Part LVI. Aminolysis of carbamates of adenosine and cytidine
作者:Harald Sigmund、Wolfgang Pfleiderer
DOI:10.1002/hlca.19940770509
日期:1994.8.10
towards the elucidation of the reaction mechanism indicate that the aminolysis proceeds via an addition-elimination or an isocyanate mechanism, depending on the reaction conditions. The phenoxycarbonyl (phoc) group at N6 or N4 was chosen to study the mild conversion of carbamates with aromatic amines into ureas of adenosine and cytidine, respectively.