Indonesian Medicinal Plants. XIX. Chemical Structures of Four Additional Resin-Glycosides, Mammosides A, B, H1, and H2, from the Tuber of Merremia mammosa (Convolvulaceae)

Isao KITAGAWA; Kazuyoshi OHASHI; Nam In BAEK; Masahiro SAKAGAMI; Masayuki YOSHIKAWA; Hirotaka SHIBUYA

doi:10.1248/cpb.45.786

Indonesian Medicinal Plants. XIX. Chemical Structures of Four Additional Resin-Glycosides, Mammosides A, B, H₁, and H₂, from the Tuber of Merremia mammosa (Convolvulaceae)

Isao KITAGAWA, Kazuyoshi OHASHI, Nam In BAEK, Masahiro SAKAGAMI, Masayuki YOSHIKAWA, Hirotaka SHIBUYA

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Keywords: Indonesian medicinal plant, Merremia mammosa, Convolvulaceae, resin-glycoside, mammoside

JOURNAL FREE ACCESS

1997 Volume 45 Issue 5 Pages 786-794

DOI https://doi.org/10.1248/cpb.45.786

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Abstract

Four new resin-glycosides, named mammosides A (10), B (11), H₁ (12), and H₂ (13), were isolated from the tuber of Merremia mammosa (Convolvulaceae), a Jamu raw material. Their chemical structures have been elucidated on the bases of chemical and physicochemical evidence, including synthesis of a glycosidic acid designated as mammoside I.

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