title: A New Taraxastane-type Triterpenoid from Cleistocalyx operculatus.
abstract: Ten known compounds including a chalcone, a long-chain alcohol, two flavonols, and six triterpenoids/steroids together with a new taraxastane-type triterpenoid, named cleistocalyxin, were isolated from the leaves of Cleistocalyx operculatus. The structure of cleistocalyxin was determined on the basis of IR, MS and NMR spectroscopic methods.
authors.forename: Phan Minh
authors.initials: PM
authors.lastname: Giang
authors.forename: Vu Thi Thu
authors.initials: VT
authors.lastname: Phuong
authors.forename: Truong Thi To
authors.initials: TT
authors.lastname: Chinh
mesh_terms: D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D027842:Syzygium / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D014315:Triterpenes; C000606871:cleistocalyxin