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

Quimica nova

Soares, Ana Carolina Ferreira¹  Silva, Aline Nazaré¹  Heleno, Vladimir Constantino Gomes¹  Matos, Priscilla Mendonça¹  Silva, Eder Henrique da¹  Sass, Daiane Cristina²  Lopes, Norberto Peporine²  Lopes, João Luis Callegari² 

[1] Universidade de Franca, Franca, Brasil;Universidade de São Paulo, Ribeirão Preto, Brasil

关键词: sesquiterpene lactones;    furanoheliangolides;    complete NMR assignments.;   

DOI  :  10.1590/S0100-40422012001100020

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

CC BY