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Phenanthropyran derivatives from Phalaenopsis equestris
1Department of Applied Biological Sciences, Faculty of Agriculture, Saga University, 1 Honjo, 840-8502, Saga, Japan.
Phytochemistry
|September 29, 2001
Abstract:
Two phenanthropyran derivatives, 3-methoxy-2,7-dihydroxy-5H-phenanthro[4,5-bcd]pyran and 2,3,7-trihydroxy-5H-phenanthro[4,5-bcd]pyran were isolated from the orchid Phalaenopsis equestri. Their chemical structures were elucidated from spectroscopic (NMR, MS etc.) analyses.