Acetogenins from Porcelia macrocarpa: Stereochemical determination of 2-alkyl-3-hydroxy-4-methyl γ-lactones by 13C NMR spectroscopy
作者:Mariana H. Chaves、Nidia F. Roque
DOI:10.1016/s0031-9422(96)00542-0
日期:1997.2
Seeds of Porcelia macrocarpa afforded two acetogenins: (2S,3R,4R)-3-hydroxy-4-methyl-2-(9-n-eicos-1-enyl) butanolide and the corresponding 9-n-eicosanyl derivative. Their absolute stereochemistries were determined by chemical H-1 and C-13 NMR and mass spectroscopic methods. Copyright (C) 1997 Elsevier Science Ltd