Complete ¹H and 13C NMR structural assignments for a group of four goyazensolide-type furanoheliangolides

AUTOR(ES)

Soares, Ana Carolina Ferreira, Silva, Aline Nazaré, Matos, Priscilla Mendonça, Silva, Eder Henrique da, Heleno, Vladimir Constantino Gomes, Lopes, Norberto Peporine, Lopes, João Luis Callegari, Sass, Daiane Cristina

FONTE

Quím. Nova

DATA DE PUBLICAÇÃO

2012

RESUMO

Four goyazensolide-type sesquiterpene lactones - lychnofolide, centratherin, goyazensolide and goyazensolide acetate - were thoroughly studied by NMR experimental techniques. ¹H NMR, 13C NMR {¹H}, COSY, HMQC, HMBC, J-res. and NOE experiments were performed to provide the needed structural information. Complete and unequivocal assignment, including the determination of all multiplicities, was obtained for each structure and the data collections are presented in tables.

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