Two isoflavans and a 3-arylcoumarin from the roots of Lotus lalambensis growing in Saudi Arabia
Phytochemical investigation of Lotus lalambensis roots resulted in the isolation and identification of two isoflavan derivatives; vestitol (1) and lotisoflavan (3). Lot-isoflavan (3) is isolated for the first time from plants under normal conditions. In addition a 3-arylcoumarin derivative; 2',7-dihydroxy-4',5-dimethoxy-3-arylcoumarin (2) was also isolated. Structures of the compounds were elucidated utilizing UV, [α], 1D- 2D-NMR spectroscopy as well as MS. The positions of the methyl groups were unequivocally assigned based on combination of HMBC and NOESY experiments.
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| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Laboratorios Mixim S.A.
2013
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0370-59432013000100005 |
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