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Thomasic acid

The structure (121) of thomasic acid was established by extensive spectroscopic and chemical degradation studies (116,119,120) and presents several interesting features. It is one of the few lignans occurring naturally in racemic form and in possessing a free carboxyl group. In addition, the trans vicinal substituents (at C-1,2) adopt a diaxial conformation. The synthesis of this product (Scheme 25) was... [Pg.338]


See other pages where Thomasic acid is mentioned: [Pg.338]    [Pg.338]    [Pg.339]    [Pg.465]    [Pg.338]    [Pg.338]    [Pg.339]    [Pg.465]   
See also in sourсe #XX -- [ Pg.17 , Pg.338 ]

See also in sourсe #XX -- [ Pg.465 ]




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