the purine compounds such as n6-phenylisopropyladenosine ( pia ) , 5'-n-ethylcarboxamido-adenosine ( neca ) , an a2 adenosine receptor agonist , and adenosine as high as 2 mm had no effect on pmn phagocytosis .
C0031484
phenylisopropyladenosine
C0001443
adenosine