title: Synthesis, spectroscopic, and antitumor activity of metal chelates of S-methyl-N-(l-isoquinolyl)-methylendithiocarbazate.
abstract: Complexes of Mn(III), Fe(III), Fe(II), Co(III), Ni(II), Cu(II), Zn(II), and Pt(II) with S-methyl-N-(l-isoquinolyl) methylendithiocarbazate (N-N-SH) were isolated and characterized by elemental analysis, conductance measurement, magnetic susceptibilities, and spectroscopic studies. On the basis of these studies, a highly distorted, high-spin, chloro-bridged, polymeric octahedral structure for [Mn(N-N-S)Cl2]; a distorted, low-spin, monomeric octahedral structure for [Fe(N-N-S)2]; a distorted, high-spin, octahedral structure for [Ni(N-N-S)2]; and a square-planar structure for [M(N-N-S)X] (M = Ni, Cu, Pt or Zn and X = Cl- or -OAc) are suggested. With Fe(III), the complex [Fe(N-N-S)2][FeCl4] was isolated while the Co(II) was oxidized to yield the Co(III) ion as [Co(N-N-S)2]2[CoCl4]. All these complexes were screened for their antitumor activity against P 388 lymphocytic leukemia test system in mice. Except for Mn(III), Fe(III), and Co(III) complexes, all were found to possess significant activity; the Cu(II) and Zn(II) complexes showed a T/C% value of 160 and 195, respectively, at their optimum dosages.
authors.affiliation: Department of Chemistry, N.R.E.C. College, Khurja, India.
authors.forename: M
authors.initials: M
authors.lastname: Mohan
authors.forename: M
authors.initials: M
authors.lastname: Kumar
authors.forename: A
authors.initials: A
authors.lastname: Kumar
authors.forename: P H
authors.initials: PH
authors.lastname: Madhuranath
authors.forename: N K
authors.initials: NK
authors.lastname: Jha
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis*; D005260:Female; D006834:Hydrazines / Q000138:chemical synthesis* / Q000627:therapeutic use; D007202:Indicators and Reagents; D007546:Isoquinolines / Q000138:chemical synthesis* / Q000627:therapeutic use; D007941:Leukemia P388 / Q000188:drug therapy; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D013055:Spectrophotometry, Infrared; D013329:Structure-Activity Relationship
chemical_list: D000970:Antineoplastic Agents; D006834:Hydrazines; D007202:Indicators and Reagents; D007546:Isoquinolines; C056972:S-methyl-N-(1-isolquinolyl)methylendithiocarbazate