Peptide bond formation by intermolecular aminolysis of d-glucopyranosyl esters of amino acids
作者:Štefica Horvat、Dina Keglević
DOI:10.1016/s0008-6215(00)81893-5
日期:1982.10
HO-protected and -unprotected d -glucopyranosyl esters of N -acylamino acids (Gly, Ala, Phe) with glycine and phenylalanine methyl esters in N , N -dimethylformamide at 38° and dichloromethane at 40°, respectively, led to rupture of the C-1 ester bond and formation of the corresponding N -acyldipeptide methyl ester. The relative reactivity of the C-1 ester bond toward aminolysis was greatly influenced by
摘要N-酰基氨基酸(Gly,Ala,Phe)的HO保护和未保护的d-吡喃葡萄糖基酯与N,N-二甲基甲酰胺中的甘氨酸和苯丙氨酸甲酯分别在38°和40°C下反应C-1酯键断裂并形成相应的N-酰基肽肽甲酯。C-1酯键对氨解的相对反应性受氨基酸亲核试剂的结构,糖苷配基侧链基团的性质以及所涉及的d-吡喃葡萄糖基酯的异头构型的影响很大。通过对两个完全乙酰化的2-O-(酰基氨基酰基)-β-d-吡喃葡萄糖进行氨解,得到与C-1相比酯在C-2上明显更低的酰化效率的证据。