to investigate the possibility that the mechanism of caffeine teratogenesis is related to its central stimulant activity , which is thought to result from its activity as an adenosine antagonist , the effects of the stable adenosine agonists l-phenylisopropyladenosine ( l-pia ) and chloroadenosine on caffeine teratogenicity were examined .
C0001443
adenosine
C0031484
phenylisopropyladenosine