title: Synthesis, characterisation and cytotoxic properties of the N1,N4-diarylidene-S-methyl-thiosemicarbazone chelates with Fe(III) and Ni(II).
abstract: Reactions of 2-hydroxy-3-methoxy, 2-hydroxy-4-methoxy-benzaldehyde with 3- and 4-methoxy-substituted salicylaldehyde S-methyl-thiosemicarbazones in the presence of FeCl(3) and NiCl(2) resulted in the corresponding methoxy-substituted N(1),N(4)-diarylidene-S-methyl-thiosemicarbazone chelates. Characterisation of the compounds in the [Fe(L)Cl] and [Ni(L)] general formula was accomplished by means of elemental analysis, conductivity and magnetic measurements, (1)H NMR, UV-vis, IR and mass spectroscopy. Cytotoxicity and proliferation experiments using K562 chronic myeloid leukemia cell line and ECV 304 human endothelial cell line imply that the iron(III) chelates may have anti-leukemic effects with 3.5 microg/dl LD(50) dose.
authors.affiliation: Department of Chemistry, Istanbul University, 34320 Avcilar, Istanbul, Turkey. tulaybal@istanbul.edu.tr <tulaybal@istanbul.edu.tr>
authors.forename: Tülay
authors.initials: T
authors.lastname: Bal
authors.forename: Belkis
authors.initials: B
authors.lastname: Atasever
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Solakoğlu
authors.forename: Serap
authors.initials: S
authors.lastname: Erdem-Kuruca
authors.forename: Bahri
authors.initials: B
authors.lastname: Ulküseven
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002460:Cell Line; D002614:Chelating Agents / Q000138:chemical synthesis* / Q000737:chemistry; D004354:Drug Screening Assays, Antitumor; D005290:Ferric Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D007501:Iron; D020014:K562 Cells; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009532:Nickel; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D013882:Thiosemicarbazones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D002614:Chelating Agents; D005290:Ferric Compounds; D009942:Organometallic Compounds; D013882:Thiosemicarbazones; D009532:Nickel; D007501:Iron