Studies of Peptide Antibiotics. I. Dipeptide Anhydrides as Models of Cyclic Peptide Antibiotics
作者:Nobuo Izumiya、Tetsuo Kato、Yoshimasa Fujita、Motonori Ohno、Michio Kondo
DOI:10.1246/bcsj.37.1809
日期:1964.12
The D-D, L-L, D-L and L-D stereomers of both valyllysine anhydride and phenylalanyllysine anhydride, and the D-L and L-L stereomers of both valylornithine anhydride and phenylalanylornithine anhydride, have been synthesized in order to compare them with the cyclic peptide antibiotics, with which they possess several structural features in common. Synthesis has been achiveved by the dicyclohexylcarbodiimide-induced
合成了缬氨酰酐和苯丙赖氨酸酐的 DD、LL、DL 和 LD 立体异构体,以及缬氨酰鸟氨酸酐和苯丙氨酸酐酐的 DL 和 LL 立体异构体,以便与环肽类抗生素进行比较。共同的结构特点。合成是通过二环己基碳二亚胺诱导的甲酰基(或叔丁氧羰基)缬氨酸(或苯丙氨酸)与 ω-羧基苯甲氧基赖氨酸(或鸟氨酸)酯的缩合,然后在甲醇中用氯化氢处理所得酰基二肽酯来实现的或乙酸乙酯去除甲酰基或叔丁氧羰基保护基团。如此衍生的二肽酯盐酸盐已在氨的作用下转化为相应的苯甲氧基取代的二肽酸酐,而这些又通过钯催化的氢解转化为所需的未酰化的二肽酸酐盐酸盐。酶解...