A. Bashir, M. Hamburger, Mahabir P. Gupta
Sep 1, 1992
Citations
0
Influential Citations
10
Citations
Journal
Phytochemistry
Abstract
Abstract Two novel biphenyls, 3′-hydroxy-4′,5-dimethoxy-3,4-methylenedioxybiphenyl and 3′,4′,5-trimethoxy-3,4-methylenedioxybiphenyl, and a known xanthone were isolated from the roots of Monnina sylvatica . The structures of the isolates were established by spectroscopic methods (UV, mass spewometry, 1 H and 13 CNMR, including homonuclear NOE difference measurements). 3′-Hydroxy-4′,5-dimethoxy-3,4-methylenedioxybiphenyl showed anti-fungal activity against Cladosporium cucumerinum in a bioautographic assay on TLC, and weak activity against Candida albicans and Trichophyton mentagrophytes in a dilution assay.