PMID- 22626966 OWN - NLM STAT- MEDLINE DCOM- 20121108 LR - 20120709 IS - 1873-3700 (Electronic) IS - 0031-9422 (Linking) VI - 80 DP - 2012 Aug TI - Secondary metabolites from the root of Ehretia longiflora and their biological activities. PG - 50-7 LID - 10.1016/j.phytochem.2012.04.013 [doi] AB - Bioassay-guided fractionation of the methanolic extract of the root of Ehretia longiflora (Boraginaceae) afforded eight compounds, ehretiquinone (1), ehretiolide (2), ehreticoumarin (3), ehretilactone A (4), ehretilactone B (5), ehretiamide (6), ehretine (7), and ehretiate (8), together with 12 known compounds (9-20). The relative configuration of 1 was determined by single crystal X-ray diffraction. Among the isolates, 1 and prenylhydroquinone (14) showed antitubercular activity against Mycobacterium tuberculosis strain H37Rv with MIC values of 25.0 and 26.2 mug/mL, respectively. Moreover, 1 exhibited inhibitory effects on N-formylmethionylleucylphenylalanine (fMLP)-induced superoxide production, with IC(5)(0) value of 0.36+/-0.03muM. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Chien, Yu-Chieh AU - Chien YC AD - Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC. FAU - Lin, Chu-Hung AU - Lin CH FAU - Chiang, Michael Y AU - Chiang MY FAU - Chang, Hsun-Shuo AU - Chang HS FAU - Liao, Chang-Hui AU - Liao CH FAU - Chen, Ih-Sheng AU - Chen IS FAU - Peng, Chien-Fang AU - Peng CF FAU - Tsai, Ian-Lih AU - Tsai IL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120522 PL - England TA - Phytochemistry JT - Phytochemistry JID - 0151434 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antitubercular Agents) RN - 0 (Plant Extracts) RN - 11062-77-4 (Superoxides) SB - IM MH - Anti-Inflammatory Agents/isolation & purification/metabolism/pharmacology MH - Antitubercular Agents/isolation & purification/metabolism/pharmacology MH - Boraginaceae/*metabolism MH - Humans MH - Inhibitory Concentration 50 MH - Mycobacterium tuberculosis/drug effects MH - Plant Extracts/*isolation & purification/metabolism/*pharmacology MH - Plant Roots/*metabolism MH - Superoxides/metabolism EDAT- 2012/05/26 06:00 MHDA- 2012/11/09 06:00 CRDT- 2012/05/26 06:00 PHST- 2011/08/30 00:00 [received] PHST- 2012/02/29 00:00 [revised] PHST- 2012/04/24 00:00 [accepted] PHST- 2012/05/26 06:00 [entrez] PHST- 2012/05/26 06:00 [pubmed] PHST- 2012/11/09 06:00 [medline] AID - S0031-9422(12)00192-6 [pii] AID - 10.1016/j.phytochem.2012.04.013 [doi] PST - ppublish SO - Phytochemistry. 2012 Aug;80:50-7. doi: 10.1016/j.phytochem.2012.04.013. Epub 2012 May 22.