作者:Ken-ichi Nakashima、Naohito Abe、Fumiko Kamiya、Tetsuro Ito、Masayoshi Oyama、Munekazu Iinuma
DOI:10.1002/hlca.200900086
日期:2009.10
The three novel methylene bis[flavonoids] 1–3, the novel 2‐flavene 4, the new naturally occurring flavan 5, and the new retro‐dihydrochalcone 6 were isolated from dragon's blood of Daemonorops draco, together with seven known compounds. The structures were elucidated by extensive 1D‐ and 2D‐NMR spectroscopic analysis.
三个新的亚甲基双[黄酮] 1 - 3中,新的2-黄烯4,新天然存在的黄烷5,而新的复古-dihydrochalcone 6是从龙的血液中分离血竭具有七个已知化合物,一起。通过广泛的1D-NMR和2D-NMR光谱分析阐明了结构。