title: Synthesis and biological evaluation of some phosphate triester derivatives of the anti-cancer drug araC.
abstract: A number of novel phosphate triester derivatives of the anti-cancer nucleoside analogue araC have been prepared by a rapid 2-step procedure, not necessitating prior sugar protection. Spectroscopic and lipophilicity data have been collected on these compounds. An in vitro assay indicated inhibition of thymidine incorporation by mammalian epithelial cells, by each of these compounds, in the range 3-300 microM. Moreover, the degree of inhibition showed a close correlation to chemical structure; in particular, there was a clear relationship between inhibition of thymidine incorporation and log(P). These results are consistent with cellular penetration by the intact phosphate triesters and intracellular action by an unspecified mechanism. Triethyl phosphate is inactive under the conditions of the test.
authors: Department of Chemistry, University College London, UK.
authors: B C
authors: BC
authors: Jones
authors: C
authors: C
authors: McGuigan
authors: P A
authors: PA
authors: Riley
mesh_terms: D000818:Animals; D002460:Cell Line; D003561:Cytarabine / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D004247:DNA / Q000096:biosynthesis; D066298:In Vitro Techniques; D010710:Phosphates; D012995:Solubility; D013329:Structure-Activity Relationship
chemical_list: D010710:Phosphates; D003561:Cytarabine; D004247:DNA