Antimicrobial Activity of Novel Furanonaphthoquinone Analogs

Author:

Nagata Kumiko1,Hirai Kei-Ichi2,Koyama Junko3,Wada Yasunao4,Tamura Toshihide1

Affiliation:

1. Department of Bacteriology1 and

2. Department of Anatomy, Kanazawa Medical University, Uchinada, Ishikawa 920-02,2 and

3. Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe 658,3 Japan

4. Clinical Laboratory,4 Hyogo College of Medicine, Nishinomiya, Hyogo 663,

Abstract

ABSTRACT Analogs of furanonaphthoquinone (FNQ) from Tecoma ipe Mart had MICs ranging from 1.56 to 25 μg/ml against gram-positive bacteria. FNQ showed significantly lower MICs against methicillin-resistant Staphylococcus aureus than against methicillin-sensitive S. aureus . FNQ inhibited Helicobacter pylori with an MIC of 0.1 μg/ml. Fungi, including pathogenic species, were sensitive to FNQ with MICs similar to those of amphotericin B.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Reference16 articles.

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2. Studies on the structure and stereochemistry of cytotoxic furanonaphthoquinones from Tabebuia impetiginosa: 5- and 8-hydroxy-2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-diones.;Fujimoto Y.;J. Chem. Soc. Perkin Trans.,1991

3. Goodwin C. S. McNulty C. M. A. Bacteriological and pharmacological basis for the treatment of Helicobacter pylori infection Helicobacter pylori and gastroduodenal disease 2nd ed. Rathbone B. J. Heatley R. V. 1992 209 216 Blackwell Scientific Publications Oxford United Kingdom

4. Antitumor agents. 89. Psychorubrin, a new cytotoxic naphthoquinone from Psychotria rubra, and its structure-activity relationship.;Hayashi T.;J. Med. Chem.,1987

5. Selective antitumor activities of furanonaphthoquinone derivatives against cultured human tumor cells.;Hirai K.-I.;Proc. Jpn. Cancer Assoc.,1995

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