Occurrence of 2,7-Dihydroxy-3,4,6- trimethoxy-9, 10-dihydrophenanthrene in Coelogyne ovalis, A High Altitude Himalayan Orchid : Application of C-13 NMR Spectroscopy in Structure Elucidation

Department of Chemistry, University College of Science, Calcutta-700 009

Manuscript received 1 November 1980, revised 8 April 1981, accepted 15 July 1981

Occurrence of 2,7-Dihydroxy-3,4,6- trimethoxy-9, 10-dihydrophenanthrene in Coelogyne ovalis, A High Altitude Himalayan Orchid : Application of C-13 NMR Spectroscopy in Structure Elucidation.