Efficient synthesis of polysubstituted acylguanidines and guanylureas.

(Benzotriazol-1-yl)carboximidamides were applied for the preparation of polysubstituted acylguanidines and guanylureas. The reaction sequence utilized mild conditions and gave high yields for final compounds and intermediates. The protocol developed allows for variation of the substituents at all positions of the products.

A general route to 5-aminotetrazoles.

Various di- and trisubstituted (benzotriazolyl)carboximidamides were used for the preparation of N,N-di- and 1,N,N-trisubstituted 5-aminotetrazoles 3a-e and 6a-d under mild conditions in good to excellent yields.