Fuhrman F A, Fuhrman G J, Nachman R J, Mosher H S
Science. 1981 May 1;212(4494):557-8. doi: 10.1126/science.7209552.
Isoguanosine (oxyadenosine or crotonoside), previously known to occur in nature only in the croton bean, was isolated from an animal, the marine nudibranch mollusk Diaulula sandiegensis.
异鸟苷(氧代腺苷或巴豆苷),此前已知仅在巴豆中天然存在,现从一种动物——海洋裸鳃亚目软体动物圣地亚哥双鳃海牛中分离得到。