Seven compounds, five of them new, have been isolated from the heartwood of Diospyros quiloensis. The new compounds have been shown by chemical and spectroscopic methods, and by synthesis, to be 4,5,6,8-tetramethoxy-,5-hydroxy-4,6,8-trimethoxy-, 4,5,8-trimethoxy-, 4,5-dimethoxy-, and 5-hydroxy-4-methoxy-2-naphthaldehyde. The other two, 4,5,6-trimethoxy- and 6-hydroxy-4,5-dimethoxy-2-naphthaldehyde
从七叶柿的心材中分离出七种化合物,其中五种是新化合物。通过
化学和光谱方法,以及通过合成,已显示出新化合物为4,5,6,8-四甲氧基-,5-羟基-4,6,8-
三甲氧基-,4,5,8-
三甲氧基- ,4,5-二甲氧基-和5-羟基-4-甲氧基-2-
萘醛。先前已从薯os属植物中分离出另外两个4,5,6-
三甲氧基-和6-羟基-4,5-二甲氧基-2-
萘醛。