Convenient methods for syntheses of active carbamates, ureas and nitrosoureas using N, N′-disuccinimido carbonate (DSC)

~48%

~%

~51%

~%

~70%

~90%

~0%

~0%

~70%

~%

~61%

~57%

~62%

~0%

~63%

~%

~80%

~0%

~0%