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

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

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 informatio...

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Bibliographic Details
Main Authors: Ana Carolina Ferreira Soares, Aline Nazaré Silva, Priscilla Mendonça Matos, Eder Henrique da Silva, Vladimir Constantino Gomes Heleno, Norberto Peporine Lopes, João Luis Callegari Lopes, Daiane Cristina Sass
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2012-01-01
Series:Química Nova
Subjects:
sesquiterpene lactones
furanoheliangolides
complete NMR assignments
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001100020&lng=en&tlng=en
Description
Summary: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.
ISSN:1678-7064

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