Several cyclic amino acids(1-4)were synthesizedfrom glycine.Isocyanate ester wasprepared asthe keyintermediate and reacted with dibromoalkanesto affordthetarget
A series of novel 3-alkylthio-4-arylideneamino-5-(2-furyl)-1, 2, 4-triazole derivatives were synthesized. Their chemical structures were confirmed with elementa