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The reaction of FeCl 3 hexahydrate with C 18 H 20 NO 3 .PO 4 in acetonitrile produced new complex with general formula [Fe(L)]Cl 2 , (L= codeine). Characterization of the ligand and its complex were made by elemental analysis, FT-IR, 1 H-NMR, Raman and UV–visible spectroscopy. This new complex showed antitumor activity against two kinds of cancer cell lines: AGS (Stomach) and MCF-7 (Breast). Cell cytotoxic effects of the ligand and its complex were assayed by MTT and Natural-red tests. The antibacterial activity of ligand and complex against Pseudomonas aeruginosa , Staphylococcus aureus , Streptococcus pyogenes and Escherichia coli were also examined. Keywords: Codeine; Fe(III) complex; Synthesis; Anti-tumor; AGS and MCF-7; Antibacterial. e-mail: mojdeh.golzani@gmail.com INTRODUCTION Natural products play an important role in diseases control and treatment. The plants extracts are used in the treatment of human diseases all the time. From the last century, a scientific interest for phototherapy increased in several medical fields such as immunology, hematology and oncology [1-5].Currently there are three major ways of treating cancer: radiation therapy, surgery and cytotoxic drugs. Application of plants in medicine has affected the identification of natural compounds such as cocaine, morphine, vinblastine, tax land codeine [5-8].Many different coordination compounds and the mechanism of cytotoxic action have been discussed with regard to the development of new antitumor agents [8-15]. Numerous medicinal plants have been screened extensively for their antimicrobial potential worldwide [1, 11]. Morphine and its derivatives have received considerable attention as narcotic and used in lenitive drudge products. Morphine plays an important role in the therapy of acute and chronic pain. Exogenously delivered morphine acts in the body by activating different subtypes of opioid receptors [14].Over the last decades, proposals have accumulated that morphine present in mammalian tissues and fluids comes not only from an exogenous or dietary origin, but may also be biosynthesized de novo. Latest studies have unequivocally proven the existence of a mammalian morphine biosynthetic pathway [15], which consists of at least 19 steps and is different in its primary steps from that occurring in plants [16]. Meanwhile the endogenous morphine biosynthesis takes place in mammals, their cells and tissues are constantly exposed to certain amounts of morphine and its precursors [17].Investigation of lithium effect in opioid receptors on inhibitory avoidance response in mice has been reported. The results suggest that the opioid receptors in the central nervous system may be involved in the retrieval of lithium state dependent learning [18]. The lithium efficacy in controlling behaviors related with dopamine stimulants and manic states has been proposed [19]. Thus, it may be suggested that lithium‘s action may be mediated through dopamine receptors [20].Furthermore interactions between lithium and opioids have been reported. There is evidence that lithium is able to affect some actions of morphine. In particular, it has been shown that lithium inhibits morphine withdrawal signs in morphine-dependent mice [21], reduces the self-stimulation facilitated by morphine and the expression of tolerance to morphine [22] and alters the morphine induced analgesia in mice [23]. Both drugs produce a conditioned taste avoidance response and suppress schedule-induced polydipsia [24]. Another morphine precursor codeine, which stands in the biosynthetic pathway after salutaridinol, had a higher partial agonist efficacy. Their metal chelates are of interest due to their fascinating chemistry as well as antimicrobial and anti-cancer activities. The other natural ligand from plants such as phenolic compound of mono and sesquiterpenoid, flavonoids also can be used in synthesis of metal complex [25].Codeine is generally named codeine phosphate (Cod.P), morphine-3-methyl ether phosphate, methyl-morphine phosphate, or morphine monomethyl ether phosphate. It takes the general formulae of C

SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL PROPERTIES OF NEW CODEINE FE(III) COMPLEX