Synthesis, Conformation of 3′-(Tetrazole-2″-yl)-3′-deoxythymidine and its 5″-Derivatives. Substrate Properties of 3′-(Tetrazole-2″-yl)-3′-deoxythymidine 5′-Triphosphate
作者:V. A. Ostrovskii、E. P. Studentsov、V. S. Poplavskii、N. V. Ivanova、G. V. Gurskaya、V. E. Zavodnik、M. V. Jasko、D. G. Semizarov、A. A. Krayevsky
DOI:10.1080/15257779508010691
日期:1995.8
5'-O-Benzoyl-3'-(tetrazole-2 ''-yl)-3'-deoxythymidine and its 5 ''-substituted derivatives were obtained by the reaction of 5'-O-benzoyl-2,3'-anhydrothymidine with triethylammonium salts of either tetrazole or 5-substituted tetrazoles. Debenzoylation of these compounds yielded 3'-(tetrazole-2 ''-yl)-3'-deoxythymidine and its 5 ''-derivatives. Structures of two of them were confirmed by X-ray analysis. Both 3'-(tetrazole-2 ''-yl)-3'-deoxythymidine and 3'-(5 ''-methyltetrazole-2 ''-yl)-3'-deoxythymidine have anti-conformation with respect to the glycosidic bond, and 2'-endo-3'-exo-conformation of the sugar residue with gauche(+) orientation relative to the C4'-C5' bond. 3'-(Tetrazole-2 ''-yl)-3'-deoxythymidine 5'-triphosphate exhibited poor termination substrate properties towards avian myeloblastosis virus reverse transcriptase and did not serve as a substrate for other employed DNA polymerases.