作者:W.J. McGahren、M. Goodman
DOI:10.1016/0040-4020(67)80036-x
日期:1967.5
2-(1′-benzyloxycarbonylamino-1′-methyl)ethyl-4-methyl-oxazolone and 2-(1′-benzyloxycarbonylamino-1′-methyl)ethyl-4-benzyloxazolone, were prepared and characterized. the imidazole-acceleratedp-nitrophenyl-active ester synthesis was found to be a good route to the dipeptides benzyloxycarbonylaminoisobutyryl-l-phenylalanine methyl ester and benzyloxycarbonylaminoisobutyryl-l-alanine methyl ester. The acids were
两个光学活性的晶体肽恶唑酮是2-(1'-苄氧基羰基氨基-1'-甲基)乙基-4-甲基-恶唑酮和2-(1'-苄氧基羰基氨基-1'-甲基)乙基-4-苄基恶唑酮。准备和表征。发现咪唑促进的对硝基苯基活性酯的合成是获得二肽苄氧基羰基氨基异丁酰基-1-苯丙氨酸甲酯和苄氧基羰基氨基异丁酰基-1-丙氨酸甲酯的良好途径。通过用稀酸小心水解这些酯并闭环,与乙酸酐或二环己基-碳二亚胺反应生成恶唑酮,从而得到酸。