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Methyl pyxinate

Two new hopanes, methyl pyxinate (172) and the corresponding acetate (173), occurin the lichen Pyxine endochrysina along with several dammaranes. Full papers have appeared on the structure of leucotylic acid (174) and on the correlation of zeorin (175) with leucotylin (176). On treatment with acid, methyl leucotylate (177) and leucotylin (176) afford methyl isoleucotylate (178) and isoleucotylin (179), respectively. [Pg.227]

In addition to the previously described pyxinic acid (485) 339), Yosioka et al. 345) have isolated methyl pyxinate (486) and methyl 3-0-acetylpyxinate (487) from Pyxine endochrysina. The structure of these esters was verified by direct comparison with the synthetic derivatives obtained from pyxinic acid. [Pg.208]

See other pages where Methyl pyxinate is mentioned: [Pg.44]    [Pg.121]    [Pg.381]    [Pg.44]    [Pg.121]    [Pg.381]    [Pg.384]   
See also in sourсe #XX -- [ Pg.381 ]

See also in sourсe #XX -- [ Pg.208 ]



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