Sulfanilamide copper(II) chelates with 2-[(2-hydroxyphenyl-imino)methyl]phenolom and 1-[(2-hydroxyphenylimino)-methyl]naphthalen-2-ol
摘要:
2-[(2-Hydroxyphenylimino)methyl]phenol (H(2)L(1)) and 1-[(2-hydroxyphenylimino)methyl]naphthalen-2-ol (H(2)L(2)) reacted with copper(II) acetate hydrate and sulfanilamide (Sf(1)), sulfathiazole (Sf(2)), sulfaethidole (Sf(3)), sulfadiazine (Sf(4)), and sulfadimidine (Sf(5)) in ethanol to give mixed-ligand copper chelates with the composition Cu(Sf(1-5))(L(1-2))center dot nH(2)O (n = 1, 2). All these complexes are monomeric. Salicylaldehyde imines (H(2)L(1) and H(2)L(2)) behave as doubly deprotonated tridentate O,N,O ligands, whereas sulfanilamides (Sf1-5) are unidentate ligands. Thermolysis of the synthesized complexes includes dehydration at 70-90 degrees C, followed by complete thermal decomposition (290-380 degrees C). The complexes [Cu(Sf(1))(L(1))]center dot 2H(2)O and [Cu(Sf(3))(L(1))]center dot H(2)O at a concentration of 10(-4) M inhibited growth and reproduction of 100% of human myeloid leukemia cells (HL-60). The inhibitory effect was 90 and 75%, respectively, at a concentration of 10(-5) M, whereas no antitumor activity was observed at a concentration of 10(-6) M.