From acid hydrolysates of amphomycin (+) 3-anteisotridecenoic acid, (+) 4-hydroxy-anteisotridecanoic acid lactone and 4-hydroxy-isododecanoic acid lactone were isolated. While the unsaturated acid is a genuine building component of the antibiotic, the lactones are formed from unsaturated acids during hydrolysis.
从
氨苄西林(+)3-反式十
三烯酸、(+)
4-羟基反式
十三烷酸内酯和
4-羟基
异十二烷酸内酯的酸
水解物中分离出。不饱和酸是抗生素的真正构建成分,而内酯则是在
水解过程中由不饱和酸形成的。