Extraction of the aerial parts of Ophiorrhiza rosacea Ridley (Rubiaceae) has yielded harman-2-oxide (1). Extraction of the aerial parts of O. kunstleri King yielded the alkaloids palicoside (3) and 3,14-didehydro-19-methylnormalindine (8). The structures of these compounds followed from their spectroscopic properties.
natural products, alkaloids, Ophiorrhiza, indole
Publication DOI: 10.1071/CH99112Journal NLM ID: 0370614Institutions: Department of Chemistry, University of Western Australia, Nedlands, Australia, Jurusan Farmasi, FMIPA, Universitas Andalas, Kampus Limau Manis, Padang, Indonesia
Methods: 13C NMR, 1H NMR, IR, FAB-MS, UV, extraction, CC, melting point determination, evaporation
Found