compounds in good yields. These sulfamoyloxazolidinones and sulfamoylperhydrooxazinones were revealed as efficient 2-chloroethylsulfamoyl donors in the 2-chloroethylnitrososulfamides synthesis; five new CENS (derivated from heterocyclic amines and amino acids) were thus synthezised. According to the experimental conditions, N-sulfamoylcyclocarbamates can be reopened by nucleophiles giving addition
从异
氰酸氯磺酰基酯开始,连续加入选择的1,2和1,3卤代醇,用
氮芥子
氨磺酰化并在碱性条件下环化,可以得到高收率的标题化合物。这些
氨磺酰基
恶唑烷酮和
氨磺酰基过氢恶嗪酮在2-
氯乙基亚硝基磺酰胺合成中被认为是有效的2-
氯乙基
氨磺酰基供体。由此合成了五个新的CENS(衍生自杂环胺和
氨基酸)。根据实验条件,N-
氨磺酰基环
氨基甲酸酯可被亲核试剂重新打开,通过转
氨甲酰化反应产生加成产物。