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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 41, 2011 - Issue 5
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Original Articles

Some Novel Thiopyrimidine Nucleoside Analogs: Synthesis and In Vitro Antimicrobial Evaluation

, , , &
Pages 652-661 | Received 08 Oct 2009, Published online: 31 Jan 2011
 

Abstract

Some new S-alkyl derivatives of indeno[1′,2′:4,5]thieno[2,3-d]pyrimidine 2–8 were prepared starting with pyrimidine-2(1H)-thione derivative (1). Also, treatment of compound 1 with 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide or 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose afforded nucleosides 9 and 12, respectively. Furthermore, deprotection of the latter blocked nucleosides was achieved in methanolic ammonia to afford the desired free S-nucleoside derivatives 10 and 13, respectively. Some prepared products were screened for antimicrobial activity, and some of them showed promising activity.

ACKNOWLEDGMENT

We are grateful to Deutsche Forschungsgemeinschaft (DFG) and Prof. Klaus Banert, Chemistry Department, Technical University, Chemnitz, Germany, for facilities and support.

Notes

+++ Highly sensitive (21–25 mm); ++ Fairly sensitive (16–20 mm); + Slightly sensitive (15–10 mm); − Not sensitive (0–5 mm).

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