induction of neural differentiation in cultures of undetermined presumptive epidermis from three amphibian species was achieved by the addition of 1 millimolar dibutyryl adenosine 3',5'-monophosphate , 8-bromadenosine 3',5'-monophosphate , or adenosine c ' , e'-monophosphate together with theophylline .
C0001443
adenosine
C0001465
adenosine