Seto H, Westley J W, Pitcher R G
J Antibiot (Tokyo). 1978 Apr;31(4):289-93. doi: 10.7164/antibiotics.31.289.
All thirty-four signals observed in the 13C nmr of both the free acid form (Ia) and sodium salt (Ib) of the polyether antibiotic lasalocid have been assigned. This was achieved using model compounds such as 3-methylsalicylic acid, the retroaldol ketones from both lasalocid and lysocellin and a gamma-lactone from a third polyether, salinomycin. The last assignments to be made were accomplished using biosynthetically enriched samples of the antibiotic.
聚醚抗生素拉沙里菌素的游离酸形式（Ia）和钠盐（Ib）的13C核磁共振中观察到的所有34个信号均已得到归属。这是通过使用模型化合物实现的，如3-甲基水杨酸、拉沙里菌素和利索菌素的逆羟醛缩合酮以及第三种聚醚盐霉素的γ-内酯。最后的归属是利用该抗生素的生物合成富集样品完成的。
