Artículos de revistas
Complete 1H and 13C NMR structural assignments for five semi-synthetic eremantholides
Fecha
2021-11-15Registro en:
Journal of Molecular Structure, v. 1244.
0022-2860
10.1016/j.molstruc.2021.131004
2-s2.0-85109747543
Autor
Universidade Estadual Paulista (UNESP)
Universidade de Franca
Universidade de São Paulo (USP)
Institución
Resumen
Five eremantholides were prepared from natural furanoheliangolides by reductions with Stryker's reagent, in previous works. We thus decided to perform a detailed and complete assignment of all 1H and 13C NMR data for those compounds. Through NMR experiments such as 1H NMR, 13C {1H} NMR, gCOSY, gHMQC, gHMBC, J-resolved, among others, it was achieved an unequivocal assignment of 1H and 13C NMR data for all studied substances, with measurement of all H/H homonuclear coupling constants and the clarification of all hydrogen signals multiplicities. Those data were not completely available yet in the literature.