Derivatives of L-adenosine and L-guanosine as substrates for human deoxycytidine kinase

A series of analogues of L-adenosine and of L-guanosine, including beta-L-d A, beta-L-Ado, beta-L-araA, and beta-L-dG, have been shown to be substrates of human deoxycytidine kinase thus demonstrating the complete lack of enan tioselectivity of this enzyme.