摘要:
Syntheses are described for seven new deuterium labeled flavones, [3,6,8,3',5'-D-5]-apigenin 5, [3,3',5'-D-3]-apigenin 6, [3,6,8,2',5',6'-D-6]-luteolin 7, [3,2',5',6'-D-4]-luteolin 8, [6,8,2',5',6'-D-5]-quercetin 9, [2',5',6'-D-3]-quercetin 10 and [8,2',5',6'-D-4]-fisetin 11, using D3PO4. BF3/D2O as a deuteration reagent. The products were characterized by NMR and mass spectrometry. (C) 2000 Elsevier Science Ltd. All rights reserved.