the compounds inhibited the gastric output of acid , pepsin and fluid in pylorus-ligated rats in a dose-dependent manner with an order of potency : 5'-n-ethylcarboxamidoadenosine ( neca ) greater than ( - ) n6-phenylisopropyladenosine ( r-pia ) greater than ( + ) n6-phenylisopropyladenosine ( s-pia ) greater than adenosine .
C0031484
phenylisopropyladenosine
C0001443
adenosine