Vismia mexicana (Clusiaceae) is a small tropical tree found from Mexico to Honduras. The CH2Cl2=MeOH extract from the leaves has been reported to have inhibitory properties against reverse transcriptase of human immunodeficiency virus type 1 (HIV-1 RT). In order to characterize some of its chemical constituents, the EtOAc-soluble fraction of this extract was subjected to column chromatography. A new natural product was isolated and designated vismiaquinone D [1-hydroxy-6- methoxy-7,8-(3',3'-dimethyl-pyrano) anthraquinone]. In addition, vismiaquinone was obtained. The structures of vismiaquinone and vismiaquinone D were determined by 1H and 13C NMR spectroscopy, unambiguous assignments were achieved with DEPT, HSQC, and HMBC experiments, and corroborated by X-ray diffraction studies. The isolated anthraquinones were tested against HIV-1 RT. However, none showed relevant activity, suggesting that other compounds in this extract may be responsible for its HIV-1 RT inhibitory properties.
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Articles in the same Issue
- Anti-Inflammatory Activity of Selected Plants from Saudi Arabia
- Propolis from Northern California and Oregon: Chemical Composition, Botanical Origin, and Content of Allergens
- Synthesis and Pharmacological Evaluation of Novel Unsubstituted Indole-Anthraquinone Carboxamide Derivatives as Potent Antihyperlipidemic Agents
- Anthraquinones from Vismia mexicana
- Vascular and Antioxidant Effects of an Aqueous Mentha cordifolia Extract in Experimental NG-Nitro-L-arginine Methyl Ester-Induced Hypertension
- Bioguided Identification of Antifungal and Antiproliferative Compounds from the Brazilian Orchid Miltonia flavescens Lindl.
- Interspecific Competition between Microcystis aeruginosa and Anabaena flos-aquae from Taihu Lake, China
- Influence of Culture Conditions on the Biotransformation of (+)-Limonene by Aspergillus niger
- Low-Dose Radiation Suppresses Pokemon Expression under Hypoxic Conditions
- Polyamines in Cell Walls of Chlorococcalean Microalgae
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