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BIBTEX RIS

Triterpenoids—III

1968; Elsevier BV; Volume: 24; Issue: 3 Linguagem: Inglês

10.1016/0040-4020(68)88089-5

ISSN

1464-5416

Autores

R.Ó Dorchaí, J. Thomson,

Tópico(s)

Toxin Mechanisms and Immunotoxins

Resumo

Cyclamigenin B is shown to be 13β,28-epoxy-16,30-dioxo-oleanan-3β-ol (VII) by reduction to aegicerin (XII) and by oxidation of cyclamigenin B acetate to the corresponding acid IX acetolysis of which yields 3β,28-diacetoxy-16-keto-olean-12-en-30-oic acid (XVIII). The mass spectra of aegicerin acetate (XI), cyclamigenin B acetate (VIII), and the methyl ester acetate X are discussed.

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