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Pristimerin-related compounds

From two Maytenus species collected in Paraguay, two new pristimerin-related compounds were isolated, 15-a-hydroxypristimerin (57), from M. scutioides [72], and 15-a-hydroxy-21-keto-pristimerin (58) from M. catingarum [73], the last one isolated in our laboratory. The structure of compound (57) was elucidated by spectroscopic means, including MS, h and 13C - NMR, and H - 13C heteronuclear... [Pg.665]

The first natural celastroloid-related structure described bearing a phenolic system in ring A was zeylasterone (75), isolated from Kokoona zeylanica [82]. That compound was characterized as a 6-oxo-diphenol derivative of pristimerin (53). [Pg.674]

See other pages where Pristimerin-related compounds is mentioned: [Pg.776]    [Pg.666]    [Pg.668]    [Pg.675]    [Pg.270]    [Pg.272]    [Pg.279]   
See also in sourсe #XX -- [ Pg.269 ]



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Pristimerin

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