Tomentomimulol and mimulone B: Two new C-geranylated flavonoids from Paulownia tomentosa fruits

K. Schneiderová Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic

T. Šlapetová Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic

R. Hrabal Laboratory of NMR Spectroscopy, Institute of Chemical Technology, Prague, Czech Republic

H. Dvořáková Laboratory of NMR Spectroscopy, Institute of Chemical Technology, Prague, Czech Republic

P. Procházková Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic

J. Novotná Department of Physics and Measurements and Department of Analytical Chemistry, Institute of Chemical Technology, Prague, Czech Republic

M. Urbanová Department of Physics and Measurements and Department of Analytical Chemistry, Institute of Chemical Technology, Prague, Czech Republic

J. Cvačka Mass Spectroscopy Group, Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic

K. Šmejkal Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech RepublicCorrespondence[email protected]

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Abstract

Two new discovered C-geranylated flavonoids tomentomimulol (1) and mimulone B (2) were isolated from the methanol extract of Paulownia tomentosa (Thunb). Steud. (Paulowniaceae) fruits by exhaustive chromatographic separation together with one known compound tanariflavanone D (3). The identification of compounds and structure elucidation was carried out using 1D and 2D NMR experiments, as well as mass spectroscopy, ultra-violet, infra red and CD experiments.

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Tomentomimulol and mimulone B: Two new C-geranylated flavonoids from Paulownia tomentosa fruits

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Tomentomimulol and mimulone B: Two new C-geranylated flavonoids from Paulownia tomentosa fruits

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