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New α‐Glucosidase Inhibitors and Antibacterial Compounds from<i>Myrtus communis</i> L.

Farzana ShaheenH. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan,Manzoor AhmadH. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan,Shamsun Nahar KhanDr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical Sciences, University of Karachi, Karachi-75270, PakistanSyeda Samreen HussainH. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan,Shazia AnjumH. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan,B. TashkhodjaevS. Yunusov Institute of Chemistry of Plant Substances, Academy of Sciences Republic of Uzbekistan, Tashkent, UzbekistanK. K. TurgunovS. Yunusov Institute of Chemistry of Plant Substances, Academy of Sciences Republic of Uzbekistan, Tashkent, UzbekistanM. N. SultankhodzhaevS. Yunusov Institute of Chemistry of Plant Substances, Academy of Sciences Republic of Uzbekistan, Tashkent, UzbekistanM. Iqbal ChoudharyDr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical Sciences, University of Karachi, Karachi-75270, PakistanAtta‐ur RahmanDr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan

European Journal of Organic Chemistryjournal2006en

ABI

Annotatsiya

Abstract Three new acylphloroglucinols – myrtucommulone D ( 1 ), myrtucommulone E ( 2 ), and myrtucommulone C ( 3 ) – and a new usnic acid derivative usnone A ( 4 ) have been isolated from Myrtus communis L., along with the known acylphloroglucinol myrtucommulone B ( 5 ), one sterol 8 and six triterpenes 10 – 15 , two flavonoids 6 and 9 , and 2,5‐dihydroxy‐4‐methoxybenzophenone (cearoin; 7 ). The structures of compounds 1 , 2 , 4 , and 5 were also unambiguously determined by single‐crystal X‐ray diffraction analysis. The compounds 1 – 3 and 5 were found to be more potent α‐glucosidase inhibitors than the clinically used standard acarbose. Compound 3 exhibited the highest activity among all the acylphloroglucinols, with an IC 50 (inhibition concentration) = 35.4 ± 1.15 μ M . Compounds 1 , 2 , 4 , 7 , and 11 – 15 also exhibited antibacterial activities.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

Hali tarjima qilinmagan

Mavzular

Biological Activity of Diterpenoids and Biflavonoids Natural Compound Pharmacology Studies Synthesis of Organic Compounds

Identifikatorlar

DOI: 10.1002/ejoc.200500936

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