Synthesis, characterization and cytotoxicity of copper (II) complex containing a 2H-benzo[e][1,3]oxazin derivative.

A new cis-dihalo copper(II) complex, [Cu(HL)(Cl)].CHCN (1), where HL = (S)-2-(((2-(2-(pyridin-2-yl)-2H-benzo[e][1,3]oxazin-3(4H)-yl)ethyl)amino)methyl)phenol), was isolated by reacting copper(II) chloride dihydrate and the HL ligand (HL = 2,2'-((2-(pyridin-2-yl)imidazolidine-1,3-diyl)bis(methylene))diphenol) in a MeOH/CHCN (1:3 v/v) mixture. The complex formation occurred via the ligand modification during complexation, producing a unique structure containing 2H-benzo[e][1,3]oxazin, as observed from the single crystal X-ray structure determination.

2,2'-{[2-(Pyridin-2-yl)-1,3-diazinane-1,3-diyl]bis(methylene)}diphenol.

The title compound, C(23)H(25)N(3)O(2), was obtained as an inter-mediary in the preparation of non-symmetric tertiary diamines. The mol-ecular structure presents T-shaped spatial form, in which the pyrimidine ring exhibits a chair conformation. The pyridyl ring is almost perpendicular to the phenyl rings with dihedral angles of 80.

Di-μ-chlorido-bis-{[2-({[2-(2-pyrid-yl)eth-yl](2-pyridylmeth-yl)amino}meth-yl)phenol]zinc(II)} bis-(perchlorate) dihydrate.

The title compound, [Zn(2)Cl(2)(C(20)H(21)N(3)O)(2)](ClO(4))(2)·2H(2)O, consists of a dinuclear Zn(II) cationic complex, two disordered perchlorate anions and two water mol-ecules as solvate. The [Zn(2)(μ-Cl)(2)(HL)(2)](2+ )cation [HL is 2-({[2-(2-pyrid-yl)eth-yl](2-pyridylmeth-yl)amino}meth-yl)phenol] has a centrosymmetric structure with the Zn(II) ions in a distorted octa-hedral environment surrounded by an N(3)OCl(2) donor set. HL acts as a tetra-dentate ligand through three N atoms from one amine group and two pyridyl arms and one O atom from the phenolic arm.

2-Phenyl-5-(trifluoro-meth-yl)pyrazol-3(2H)-one.

The title compound, C(10)H(7)F(3)N(2)O, is an analogue of pyrazolone derivatives with potential analgesic and anti-inflammatory properties. Its mol-ecular structure consists of phenyl and pyrazol-3(2H)-one units with a dihedral angle between the mean planes of the rings of 33.0 (1)°.