title: Structural elucidation of limonoids and steroids from Trichilia connaroides.
abstract: Six limonoids, trijugins D-H (1-5) and methyl 8alpha-hydroxy-8,30-dihydroangolensate (6), two degraded limonoids, trichiconnarins A and B (7-8), and a pregnane steroid, 3beta,4alpha-dihydroxypregnan-21-one (9), along with the known trijugin C (10) and 3beta,4alpha-dihydroxypregnan-16-one (11) were isolated from twigs and leaves of Trichilia connaroides. Their structures were established on the basis of extensive spectroscopic analysis.
authors.affiliation: State Key Laboratory of Drug Research, Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China.
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Wang
authors.forename: Cheng-Qi
authors.initials: CQ
authors.lastname: Fan
authors.forename: Sheng
authors.initials: S
authors.lastname: Yin
authors.forename: Li-She
authors.initials: LS
authors.lastname: Gan
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Yue
mesh_terms: D036701:Limonins / Q000737:chemistry*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D013256:Steroids / Q000737:chemistry*
chemical_list: D036701:Limonins; D013256:Steroids