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Flavonol Glycosides of Maesa Lanceolata Leaves

Manguro, Lawrence O. Arot (Chemistry Department, Nairobi University)
Lemmen, Peter (Technische Universitaet Muenchen, Institut fuer Organische Chemie und Biochemie)
Ugi, Ivar (Technische Universitaet Muenchen, Institut fuer Organische Chemie und Biochemie)
Kraus, Wolfgang (Hohenheim Universitaet, Institut fuer Organische Chemie)

Publication Information

Natural Product Sciences / v.8, no.3, 2002 , pp. 77-82 More about this Journal

Abstract

An investigation of the methanolic extract of Maesa lanceolata leaves has led to the isolation of four novel flavonol glycosides characterised as myricetin 3-0-2', 3', 4'-triacetylxylopyranoside (1), quercetin $$3-O-{\beta}-3$ , $$6$ , 3'-diacetylrhamnopyranoside (2), myricetin $3-O-xylopyranosyl-(1{\to}3)-{\alpha}-rhamnopyranoside$ (3) and quercetin $3-O-{\beta}-ga1actopyranosyl-(1{\to}4)-{\alpha}-rhamnopyranoside-7-O-{\beta}-galactopyranoside$ (4). Also isolated from the same extract were known flavonols; quercetin (5), myricetin (6), quercetin 3-O-xylopyranoside (7), quercetin $3-O-{\alpha}-rhamnopyranoside$ (8), myricetin $3-O-{\alpha}-rhamnopyranoside$ (9), myricetin $3-O-{\beta}-galactopyranoside$ (10) and quercetin 3-O-rutinoside (11).

Keywords

Maesa lanceolata; Myrsinaceae; flavonol glycosides; leaves;

Citations & Related Records

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Reference

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