Transannular cyclization of heliangolide
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J. de Pascual Teresa; M.S. GonzΓ‘lez; M.C. Caballero; T. Parra; I.S. Bellido
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Article
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1987
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Elsevier Science
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French
β 240 KB
4,5-cis-3&Acetoxygermacranolide by treatment with BF .Et 0, gave a mixture of 2-acetoxycadin-3,8,11(13)-trien-12-oic and 2-acetoxymuurol-3,8,1?(13?-trien-12-oic acids, while 4,5-e-l,lO-epoxy-3fl-hydroxygermacranolide gave the eudesmanolide tuberiferin.