Phytochemical Studies on the Underground Parts of Asperula taurina subsp. caucasica

Authors: UFUK ÖZGEN, CAVİT KAZAZ, HASAN SEÇEN, MAKSUT COŞKUN

Abstract: One naphthohydroquinone (mollugin) (1), 3 anthraquinones (1-hydroxy-2-methyl-9,10-anthraqinone (2), 1,3-dihydroxy-2-methoxymethyl- 9,10-anthraquinone (4) and 1,3-dihydroxy-2-carboxy-9,10-anthraquinone (7, munjistin)), \beta-sitosterol (3), 1 naphthalene glycoside (2-carbomethoxy-3-prenyl-1,4-naphtho-hydroquinone, 1,4-di-O-\beta -glucoside (5)) and 1 anthraquinone glycoside (lucidin-3-O-\beta -primeveroside (6)) were isolated from the underground parts of A. taurina subsp. caucasica. The structures of the isolates were established by MS, ^1H-NMR and ^{13}C-NMR analysis.

Keywords: Asperula taurina subsp. caucasica, Rubiaceae, anthraquinone, anthraquinone glycoside, naphthohydroquinone, naphthalene glycoside

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