title: An azaanthracene alkaloid from Polyalthia suberosa.
abstract: An azaanthracene alkaloid, 1-aza-9,10-dimethoxy-4-methyl-2-oxo-1,2-dihydroanthracene (kalasinamide) has been isolated from the stems of Polyalthia suberosa. In addition, the known N-trans-feruloyltyramine and N-trans-coumaroyltyramine are also reported from the same source. The structures were elucidated by spectroscopic methods.
authors.affiliation: Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand. scptc@mahidol.ac.th
authors.forename: P
authors.initials: P
authors.lastname: Tuchinda
authors.forename: M
authors.initials: M
authors.lastname: Pohmakotr
authors.forename: B
authors.initials: B
authors.lastname: Munyoo
authors.forename: V
authors.initials: V
authors.lastname: Reutrakul
authors.forename: T
authors.initials: T
authors.lastname: Santisuk
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D000873:Anthracenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D013785:Thailand
chemical_list: D000470:Alkaloids; D000873:Anthracenes; C412070:kalasinamide