Bioorganicheskaia khimiia 1995-01-01

[3'-(Tetrazol-2''-yl-3'-deoxythymidine and its 5''-substituted form: synthesis and conformation in the crystalline state. Substrate properties of 3'-(tetrazol-2''-yl)-3'-deoxythymidine-5'-triphosphate in relation to DNA polymerases].

V A Ostrovskiĭ, E P Studentsov, V S Poplavskiĭ, N V Ivanov, G V Gurskaia, V E Zavodnik, M V Ias'ko, D G Semizarov

Index: Bioorg. Khim. 21 , 49-54, (1995)

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Abstract

5''-Derivatives of 3'-(tetrazole-2''-yl)-3'-deoxythymidines were synthesized by interaction of 5'-benzoyl-2',3'-anhydrothymidine with tetrazole or its 5-derivatives followed by debenzoylation. Structures of two of them, 3'-(tetrazole-2''-yl)-3'-deoxythymidine and 3'-(5''-methyltetrazole-2''-yl)-3'-deoxythymidine, elucidated by X-ray analysis, revealed anti conformation of thymine about the glycosidic bond and 2'-endo-3'-exo-conformation of the sugar residue with gauche+ orientation with respect to C4'-C5'-bond. 3'-(Tetrazole-2''-yl)-3'-deoxythymidine 5'-triphosphate demonstrated poor substrate properties for the avian myeloblastosis virus reverse transcriptase and none for several other DNA polymerases.