O-(Glycyl-L-valyl-D-leucyl-L-alanyl-L-valyl)-D- and L-3-hydroxydodecanoic acids (D- and L-isoisariic acids) have been synthesised and their cyclisation has been studied. D-Isoisariic acid was converted through its acid chloride into a cyclopeptolide indistinguishable from isariin, a metabolite of Isaria cretacea. High pressure liquid chromatography was necessary for the isolation of the product from
合成了O-(糖基-L-戊基-D-亮
氨酰-L-丙
氨酰基-L-戊基)-D-和L -3-羟基
十二烷酸(D-和L-异异
水杨酸),并研究了它们的环化作用。d -Isoisariic酸通过它的酰
氯转化成cyclopeptolide无法区分isariin,的代谢物棒束孢cretacea。高压
液相色谱对于从反应混合物中分离出产物是必需的,并有助于与天然物质进行比较。尝试骑单车D用其他方法制得的异-异
水杨酸不成功。