pubmed:abstractText |
Two new sterols, stigmast-5-ene 3beta,4beta,7alpha,22alpha-tetraol (1) and stigmast-5-ene 3beta,7alpha,22alpha-triol (2), were isolated from the aerial parts of a Paraguayan medicinal plant, Verbena littoralis, together with the known compounds ursolic acid (3) and oleanolic acid (4). The structures of 1 and 2 were elucidated by spectroscopic analyses. Compounds 2-4 showed an enhancing activity of nerve growth factor (NGF)-mediated neurite outgrowth in PC12D cells.
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pubmed:affiliation |
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Sendai 980-8578, Japan.
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