Total synthesis, enzyme-substrate interactions and herbicidal activity of plumbemicin A and B (N-1409)
作者:Ivan A. Natchev
DOI:10.1016/s0040-4020(01)85930-5
日期:1988.1
no-D-norvaline, D4, and the cyclic analogue 14 have been synthesized by four- and three-component condensation of the aldehydes 3 and 10, respectively. Strict selectivity has been observed in the enzyme-substrate interactions with the enzymes phosphodiesterase I, alkaline phosphatase, α-chymotrypsin, urease, and alkaline mesintericopeptidase. The tripeptide antibiotics Plumbemicin A, 21, and B, 25
分别通过醛3和10的四组分和三组分缩合合成了不寻常的天然氨基酸3,4-didehydro-5-phosphono-D-正缬氨酸D4和环状类似物14。在与酶的磷酸二酯酶I,碱性磷酸酶,α-胰凝乳蛋白酶,脲酶和碱性中间肽酶之间的酶-底物相互作用中观察到严格的选择性。通过常规肽合成和酶催化去除保护基的方法合成了三肽抗生素Plumbemicin A,21和B,25。对新合成化合物的生物学测试表明,它们具有除草,杀真菌和抗肿瘤活性。