title: Two new natural products from Croton kongensis Gagnep.
abstract: A new diterpenoid, 14β-hydroxy-3-oxo-ent-kaur-16-ene (1), and a new nor-lignan, 8S-( - )-8-(4-hydroxy-3-methoxybenzoyl)-dihydrofuran-8(8'H)-one (4), along with five known compounds were isolated from the twigs and leaves of Croton kongensis Gagnep. Their isolations were clarified and structures were elucidated by the extensive spectroscopic analyses, especially 2D NMR experiments.
authors.affiliation: a Jiangsu Kanion Pharmaceutical Co. Ltd , 58 South Haichang Road, Lianyungang 222001 , People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Sun
authors.forename: Zhaoqing
authors.initials: Z
authors.lastname: Meng
authors.forename: Zhaoliang
authors.initials: Z
authors.lastname: Li
authors.forename: Biao
authors.initials: B
authors.lastname: Yang
authors.forename: Zhenzhong
authors.initials: Z
authors.lastname: Wang
authors.forename: Gang
authors.initials: G
authors.lastname: Ding
authors.forename: Wei
authors.initials: W
authors.lastname: Xiao
mesh_terms: D001688:Biological Products / Q000737:chemistry / Q000302:isolation & purification*; D029802:Croton / Q000737:chemistry*; D045786:Diterpenes, Kaurane / Q000737:chemistry / Q000302:isolation & purification*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry
chemical_list: C000591583:14beta-hydroxy-3-oxo-ent-kaur-16-ene; C000591584:8S-(-)-8-(4-hydroxy-3-methoxybenzoyl)-dihydrofuran-8(8'H)-one; D001688:Biological Products; D045786:Diterpenes, Kaurane; D017705:Lignans