title: A new diterpene from the stems of Manihot esculenta.
abstract: A new diterpene, named yucalexin P-23 (1), together with three known compounds, yucalexin P-15 (2), protocatechuic acid (3), and catalpinic acid (4), was isolated from the stems of Manihot esculenta. Their structures were determined by means of physicochemical evidence and spectral analysis. Compounds 3 and 4 exhibited antimicrobial activity.
authors.affiliation: Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Li
authors.forename: Li-Fei
authors.initials: LF
authors.lastname: Hu
authors.forename: You-Xing
authors.initials: YX
authors.lastname: Zhao
authors.forename: Wen-Jian
authors.initials: WJ
authors.lastname: Zuo
authors.forename: Yan-Bo
authors.initials: YB
authors.lastname: Zeng
authors.forename: Xiao-Na
authors.initials: XN
authors.lastname: Li
authors.forename: Wen-Li
authors.initials: WL
authors.lastname: Mei
authors.forename: Hao-Fu
authors.initials: HF
authors.lastname: Dai
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002365:Manihot / Q000737:chemistry*; D018547:Plant Stems
chemical_list: D004224:Diterpenes; D004365:Drugs, Chinese Herbal; C568255:yucalexin P-23