Some new compounds were prepared containing cycle thiazolidene from schiff bases which prepared from malonic ester with hydrazine in presence of ETOH. Then schiff bases reacted with 2-mercapto acetic acid to give thiazolidene. The prepared compounds identified by FT-IR spectroscopy, physical properties including melting point, boiling point and some of them were identified by 1H-NMR and 13C-NMR.