Transamidation is another way to synthesis this class of compounds, Recently conversion of carbamates to amides in single step process gaining attention because it is more advantageous than the simple amide synthesis from acid chloride and amine, due to poor solubility of some of amines in organic solvents, whereas the carbamates are commonly soluble in most of the solvents. Some carbamates, especially benzyl carbamates are readily available and thus serve conveniently as starting materials.