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Virginols A–C,three new withanolides from Physalis virginiana
Authors:Emma Maldonado  Sonia Amador  Mahinda Martínez  Ana L Pérez-Castorena
Institution:1. Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, D.F., Mexico;2. Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Cerro de las Campanas s.n., Querétaro, Mexico;1. Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, D.F., Mexico;2. Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-367, 04510, D.F., Mexico;1. Department of Entomology, Texas AgriLife Research, 1102 E FM 1294, Lubbock, TX 79403, USA;2. University of Western Australia, School of Animal Biology, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia;3. Department of Entomology, Texas AgriLife Research, 6500 Amarillo Blvd West, Amarillo, TX 79106, USA;1. Department of Medicinal Chemistry, School of Pharmacy, University of Kansas, Lawrence, KS 66045, USA;2. Department of Surgery, University of Michigan Hospital and Health Systems, Ann Arbor, MI 48109, USA;3. Kansas Biological Survey, University of Kansas, Lawrence, KS 66047, USA;1. Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan;2. School of Pharmacy, China Medical University, Taichung, Taiwan
Abstract:Virginols A–C are three new withanolides containing an epoxylactol at the side chain. They were isolated from the aerial parts of Physalis virginiana Miller. Structures of these compounds were determined by analyses of their spectroscopic data, including 1D and 2D NMR. The structure of virginol A was confirmed by X-ray diffraction analysis. The anti-inflammatory activity of virginols was evaluated in the TPA-induced ear mouse edema model.
Keywords:
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