Anthraquinones from the bark of Senna macranthera
Open Access
- 1 December 2011
- journal article
- Published by FapUNIFESP (SciELO) in Anais da Academia Brasileira de Ciências
- Vol. 83 (4), 1159-1164
- https://doi.org/10.1590/s0001-37652011000400003
Abstract
2-acetyl physcion (2-acetyl-1,8-dihydroxy-6-methoxy-3-methyl-9,10-anthraquinone, 2), a rare anthraquinone, was isolated from Senna macranthera var. nervosa (Vogel) H.S. Irwin & Barneby (Fabaceae). The chemical structure was elucidated and all ¹H and 13C NMR chemical shifts were assigned by NMR one- (¹HNMR, {¹H}-13CNMR, and APT-13CNMR) and two (COSY, NOESY, HMQC and HMBC) dimensional of this natural compound. Furthermore, the minor anthraquinones chrysophanol (3), chrysophanol-8-methyl ether (4) and physcion (5) were characterized by GC-MS analysis. The occurrence of the anthraquinones 3-5 confirms that S. macranthera is a typical representative of the genus Senna.Keywords
This publication has 12 references indexed in Scilit:
- Profiling the metabolic differences of anthraquinone derivatives using liquid chromatography/tandem mass spectrometry with data‐dependent acquisitionRapid Communications in Mass Spectrometry, 2009
- Rubrofusarina, um policetídeo natural inibidor da topoisomerase II-α humanaRevista Brasileira de Farmacognosia, 2008
- Simultaneous determination of anthraquinones in radix Polygoni multiflori by capillary gas chromatography coupled with flame ionization and mass spectrometric detectionJournal of Chromatography A, 2008
- New anthraquinone derivatives from the roots of Berchemia floribundaChinese Chemical Letters, 2007
- Efficient isolation of anthraquinone-derivatives from Trichoderma harzianum ETS 323Journal of Biochemical and Biophysical Methods, 2007
- An active heparinoid obtained by sulphation of a galactomannan extracted from the endosperm of Senna macranthera seedsCarbohydrate Polymers, 2001
- Bianthraquinones from Cassia siameaPhytochemistry, 2001
- Phenolic Constituents of Cassia Seeds and Antibacterial Effect of Some Naphthalenes and Anthraquinones on Methicillin-Resistant Staphylococcus aureus.CHEMICAL & PHARMACEUTICAL BULLETIN, 1999
- Elucidation of the substitution pattern of 9,10-anthraquinones through the chemical shifts of peri-hydroxyl protonsPhytochemistry, 1996
- Anthraquinones and other constituents of two Senna speciesPhytochemistry, 1992