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

Química Nova

Ana Carolina Ferreira Soares¹  Aline Nazaré Silva¹  Priscilla Mendonça Matos¹  Eder Henrique Da Silva¹  Vladimir Constantino Gomes Heleno¹  Norberto Peporine Lopes²  João Luis Callegari Lopes²  Daiane Cristina Sass² 

[1] ,Universidade de Franca Núcleo de Pesquisas em Ciências Exatas e Tecnológicas Franca SP ,Brasil

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

DOI  :  10.1590/S0100-40422012001100020

来源: SciELO

【 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-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License