4-benzyl-1,4-diazepan-2-one
5-oxo-[1,4]diazepane-1-carboxylic acid tert-butyl ester
3-methylthio-1-tosyl-1,5,6,7-tetrahydro-2H-1,4-diazepine hydroiodide
1-benzyloxycarbonyl-3-ethoxy-1,5,6,7-tetrahydro-2H-1,4-diazepine
3-ethoxy-1-tosyl-1,5,6,7-tetrahydro-2H-1,4-diazepine