New Sesqui- and Diterpenic Coumarin Ethers from the Roots of Aegle marmelos (L.) Corr.
M. Zaffer Ahmad,
Showkat R. Mir.
Phytochemical investigation of the methanolic extract of Aegle marmelos (L.) Corr. (Rutaceae) roots resulted in
the isolation of two new diterpenic coumarin ethers characterized as 8-(2´,6´,10´,14´-tetramethylhexadec-5´,13´-dien-3´-oxo)
coumarin (2) and 8-(2´,6´,10´,14´-tetramethylhexadec-13´-en-3´-oxo) coumarin (3) and two new sesquiterpenic coumarin
ethers identified as 8-(4´,10´-dimethyl-7´-isopropenyl-4´-hydroxy-6´-oxo-decalin) coumarin (4) and 8-(4´,10´-
dimethyl-7´-isopropenyl-4´,5´-dihydroxy-6´-oxo-decalin) coumarin (5) along with known compound n-hexacosan-1-ol
(1). The structures of the isolated compounds were established by spectral data analysis.
Keywords: Aegle marmelos, Rutaceae, roots, coumarin ethers, NMR spectrum, proton, drug, oxygenated, compound, absorption.
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