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Three new multiflorane-type triterpenes from pumpkin (Cucurbita maxima) seeds.


ABSTRACT: Three new multiflorane-type triterpenes; 7a-methoxymultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (1), 7-oxomultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (2), and multiflora-7,9(11)-diene-3a,29-diol 3-p-hydroxybenzoate-29-benzoate (3), were isolated from seeds of Cucurbita maxima, along with three known compounds. Compound 3 and multiflora-7,9(11)-diene-3a-29-diol 3-benzoate (5) exhibited potent inhibitory effects on melanogenesis, with low cytotoxicities, and 2 exhibited single-digit micromolar cytotoxicity against HL-60 and P388 cells.

SUBMITTER: Kikuchi T 

PROVIDER: S-EPMC6270121 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature

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Three new multiflorane-type triterpenes from pumpkin (Cucurbita maxima) seeds.

Kikuchi Takashi T   Takebayashi Mika M   Shinto Mayumi M   Yamada Takeshi T   Tanaka Reiko R  

Molecules (Basel, Switzerland) 20130514 5


Three new multiflorane-type triterpenes; 7a-methoxymultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (1), 7-oxomultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (2), and multiflora-7,9(11)-diene-3a,29-diol 3-p-hydroxybenzoate-29-benzoate (3), were isolated from seeds of Cucurbita maxima, along with three known compounds. Compound 3 and multiflora-7,9(11)-diene-3a-29-diol 3-benzoate (5) exhibited potent inhibitory effects on melanogenesis, with low cytotoxicities, and 2 exhibited single-digit micro  ...[more]

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