CAS 116574-09-5: Propanoic acid,3-amino-3-imino-, 1-(diphenylmethyl)-3-azetidinyl ester

3-Amino-3-iminopropanoic acid1-(diphenylmethyl)-3-azetidinylester is an important intermediate for the synthesis of azelnidipine, a drug that has been used in the treatment of hypertension. It is also used to synthesize other drugs, such as amidines and esters. 3-Amino-3-iminopropanoic acid1-(diphenylmethyl)-3-azetidinylester is prepared from cyanoacetic acid by the esterification with various alcohols, followed by hydrolysis of the resulting ester. The yield of this reaction depends on the type and amount of solvent and conditions employed. The reaction can be neutralized with acidic or basic solutions to produce a variety of products.