title: Mammea coumarins from the flowers of Mammea siamensis.
abstract: Four new mammea coumarins, mammea E/BA cyclo D (1), mammea E/BC cyclo D (2), mammea E/BD cyclo D (3), and mammea E/AC cyclo D (4), were isolated from the flowers of Mammea siamensis, along with six known coumarins. Extensive 1D and 2D NMR experiments and other spectroscopic studies, as well as chemical transformations, were employed to determine the structures of 1-4.
authors.affiliation: Chulabhorn Research Institute, Vipavadee Rangsit Highway, Bangkok 10210, Thailand.
authors.forename: Chulabhorn
authors.initials: C
authors.lastname: Mahidol
authors.forename: Wirongrong
authors.initials: W
authors.lastname: Kaweetripob
authors.forename: Hunsa
authors.initials: H
authors.lastname: Prawat
authors.forename: Somsak
authors.initials: S
authors.lastname: Ruchirawat
mesh_terms: D000107:Acetylation; D002851:Chromatography, High Pressure Liquid; D003374:Coumarins / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013785:Thailand
chemical_list: D003374:Coumarins