Three new alkaloidal heterocyclic compounds were isolated from the sponge spongia obligue collected from the South China Sea. Their chemical structures were established by UV, IR, MS, D NMR, D NMR and element
Three new alkaloidal heterocyclic compounds were isolated from the sponge spongia obligue collected from the South China Sea. Their chemical structures were established by UV, IR, MS, D NMR, D NMR and element
首次报道从中国南海西沙群岛海绵Spongia obligue中分离得到 个新的含氮生物碱杂环化合物,通过IR,MS,DNMR,D NMR等波谱数据及元素分析确定它们的结构。