Methylenedioxy- and methoxyflavones from Melicope coodeana syn. Euodia simplex
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Three new natural products, 3,8-dimethoxy-5,7-dihydroxy-3',4'-methylenedioxyflavone, 3,6,8-trimethoxy-5,7-dihydroxy-3',4'-methylenedioxyflavone and 3,6,8,3',4'-pentamethoxy-5,7-dihydroxyflavone were isolated from Melicope coodeana syn. Euodia simplex (Rutaceae) along with 3,6,3'-trimethoxy-5,7,4'-trihydroxyflavone and 3,3'-dimethoxy-5,7,4'-trihydroxyflavone. The structural assignments are based on (1)H and (13)C NMR data, including discussion of the chemical shifts of C-2 in 3,5-dihydroxy- and 3-methoxy-5-hydroxyflavones. The presence of highly methoxylated and methylenedioxyflavones is characteristic of the genus Melicope, and the present findings support the recent transfer of Euodia simplex to Melicope.
Originalsprog | Engelsk |
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Tidsskrift | Phytochemistry |
Vol/bind | 60 |
Udgave nummer | 8 |
Sider (fra-til) | 817-20 |
Antal sider | 4 |
ISSN | 0031-9422 |
DOI | |
Status | Udgivet - aug. 2002 |
ID: 128571155