Synthesis of Novel Chiral Sulfonamide-Bearing 1,2,4-Triazole-3-thione Analogs Derived from D- and L-Phenylalanine Esters as Potential Anti-Influenza Agents.

Abstract:

:Novel enantiopure 1,2,4-trizole-3-thiones containing a benzensulfonamide moiety were synthesized via multistep reaction sequence starting with D-phenylalanine methyl ester and L-phenylalanine ethyl ester as a source of chirality. The chemical structures of all compounds were characterized by elemental analysis, UV, IR, (1) H NMR, (13) C NMR, 2D NMR (HETCOR), and mass spectral data. All compounds were tested in vitro antiviral activity against a broad variety of DNA and RNA viruses and in vitro cytostatic activity against murine leukemia (L1210), human T-lymphocyte (CEM) and human cervix carcinoma (HeLa) cell lines. Although enantiopure 1,2,4-triazole-3-thione analogs in (R) configuration emerged as promising anti-influenza A H1N1 subtype in Madin Darby canine kidney cell cultures (MDCK), their enantiomers exhibited no activity. Especially compounds , , , , and (EC50 : 6.5, 6.1, 2.4, 1.6, 1.7 μM, respectively) had excellent activity against influenza A H1N1 subtype compared to the reference drug ribavirin (EC50 : 8.0 μM). Several compounds have been found to inhibit proliferation of L1210, CEM and HeLa cell cultures with IC50 in the 12-53 μM range. Compound and in (R) configuration were the most active compounds (IC50 : 12-22 μM for and IC50 : 19-23 μM for ). Chirality 28:495-513, 2016. © 2016 Wiley Periodicals, Inc.

journal_name

Chirality

journal_title

Chirality

authors

Başaran E,Karaküçük-Iyidoğan A,Schols D,Oruç-Emre EE

doi

10.1002/chir.22607

subject

Has Abstract

pub_date

2016-06-01 00:00:00

pages

495-513

issue

6

eissn

0899-0042

issn

1520-636X

journal_volume

28

pub_type

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