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Pellei M, Del Gobbo J, Caviglia M, Gandin V, Marzano C, Karade DV, Noonikara Poyil A, Dias HVR, Santini C. Synthesis and Investigations of the Antitumor Effects of First-Row Transition Metal(II) Complexes Supported by Two Fluorinated and Non-Fluorinated β-Diketonates. Int J Mol Sci 2024; 25:2038. [PMID: 38396717 PMCID: PMC10889438 DOI: 10.3390/ijms25042038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
The 3d transition metal (Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)) complexes, supported by anions of sterically demanding β-diketones, 1,3-dimesitylpropane-1,3-dione (HLMes) and 1,3-bis(3,5-bis(trifluoromethyl)phenyl)-3-hydroxyprop-2-en-1-one (HLCF3), were synthesized and evaluated for their antitumor activity. To assess the biological effects of substituents on phenyl moieties, we also synthesized and investigated the analogous metal(II) complexes of the anion of the less bulky 1,3-diphenylpropane-1,3-dione (HLPh) ligand. The compounds [Cu(LCF3)2], [Cu(LMes)2] and ([Zn(LMes)2]) were characterized by X-ray crystallography. The [Cu(LCF3)2] crystallizes with an apical molecule of solvent (THF) and features a rare square pyramidal geometry at the Cu(II) center. The copper(II) and zinc(II) complexes of diketonate ligands, derived from the deprotonated 1,3-dimesitylpropane-1,3-dione (HLMes), adopt a square planar or a tetrahedral geometry at the metal, respectively. We evaluated the antitumor properties of the newly synthesized (Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)) complexes against a series of human tumor cell lines derived from different solid tumors. Except for iron derivatives, cellular studies revealed noteworthy antitumor properties, even towards cancer cells endowed with poor sensitivity to the reference drug cisplatin.
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Affiliation(s)
- Maura Pellei
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Jo’ Del Gobbo
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Miriam Caviglia
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Deepika V. Karade
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - Anurag Noonikara Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - H. V. Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, P.O. Box 19065, Arlington, TX 76019, USA; (D.V.K.); (H.V.R.D.)
| | - Carlo Santini
- School of Science and Technology—Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.)
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Del Gobbo J, Santini C, Dolmella A, Li Z, Caviglia M, Pellei M. New Copper Complexes with N,O-Donor Ligands Based on Pyrazole Moieties Supported by 3-Substituted Acetylacetone Scaffolds. Molecules 2024; 29:621. [PMID: 38338366 PMCID: PMC10856362 DOI: 10.3390/molecules29030621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/20/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The new 3-monosubstituted acetylacetone ligands, 3-(phenyl(1H-pyrazol-1-yl)methyl)pentane-2,4-dione (HLacPz) and 3-((3,5-dimethyl-1H-pyrazol-1-yl)(phenyl)methyl)pentane-2,4-dione (HLacPzMe), were synthesized and used as supporting ligands for new copper(II) and copper(I) phosphane complexes of the general formulae [Cu(HLacX)2(LacX)2] and [Cu(PPh3)2(HLacX)]PF6 (X = Pz (pyrazole) or PzMe (3,5-dimethylpyrazole)), respectively. In the syntheses of the Cu(I) complexes, the triphenylphosphine coligand (PPh3) was used to stabilize copper in the +1 oxidation state, avoiding oxidation to Cu(II). All compounds were characterized by CHN analysis, 1H-NMR, 13C-NMR, FT-IR spectroscopy, and electrospray ionization mass spectrometry (ESI-MS). The ligands HLacPz (1) and HLacPzMe (2) and the copper complex [Cu(PPh3)2(HLacPz)]PF6 (3) were also characterized by X-ray crystallography. The reactivity of these new compounds was investigated and the new compounds 4-phenyl-4-(1H-pyrazol-1-yl)butan-2-one (7) and 4-(3,5-dimethyl-1H-pyrazol-1-yl)-4-phenylbutan-2-one (8) were obtained in basic conditions via the retro-Claisen reaction of related 3-monosubstituted acetylacetone, providing efficient access to synthetically useful ketone compounds. Compound 8 was also characterized by X-ray crystallography.
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Affiliation(s)
- Jo’ Del Gobbo
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.); (Z.L.); (M.C.)
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.); (Z.L.); (M.C.)
| | - Alessandro Dolmella
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Zhenzhen Li
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.); (Z.L.); (M.C.)
| | - Miriam Caviglia
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.); (Z.L.); (M.C.)
| | - Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), Camerino, 62032 Macerata, Italy; (J.D.G.); (C.S.); (Z.L.); (M.C.)
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Pellei M, Del Gobbo J, Caviglia M, Karade DV, Gandin V, Marzano C, Noonikara Poyil A, Dias HVR, Santini C. Synthesis and cytotoxicity studies of Cu(I) and Ag(I) complexes based on sterically hindered β-diketonates with different degrees of fluorination. Dalton Trans 2023; 52:12098-12111. [PMID: 37581477 DOI: 10.1039/d3dt02179c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Design, synthesis, and in vitro antitumor properties of Cu(I) and Ag(I) phosphane complexes supported by the anions of sterically hindered β-diketone ligands, 1,3-dimesitylpropane-1,3-dione (HLMes) and 1,3-bis(3,5-bis(trifluoromethyl)phenyl)-3-hydroxyprop-2-en-1-one (HLCF3) featuring trifluoromethyl or methyl groups on the phenyl moieties have been reported. In order to compare the biological effects of substituents on the phenyl moieties, the analogous copper(I) and silver(I) complexes of the anion of the parent 1,3-diphenylpropane-1,3-dione (HLPh) ligand were also synthesized and included in the study. In the syntheses of the Cu(I) and Ag(I) complexes, the phosphane coligands triphenylphosphine (PPh3) and 1,3,5-triaza-7-phosphaadamantane (PTA) were used to stabilize silver and copper in the +1 oxidation state, preventing the metal ion reduction to Ag(0) or oxidation to Cu(II), respectively. X-ray crystal structures of HLCF3 and the metal adducts [Cu(LCF3)(PPh3)2] and [Ag(LPh)(PPh3)2] are also presented. The antitumor properties of both classes of metal complexes were evaluated against a series of human tumor cell lines derived from different solid tumors, by means of both 2D and 3D cell viability studies. They display noteworthy antitumor properties and are more potent than cisplatin in inhibiting cancer cell growth.
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Affiliation(s)
- Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Jo' Del Gobbo
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Miriam Caviglia
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Deepika V Karade
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Anurag Noonikara Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - H V Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
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Lutoshkin MA, Taydakov IV. Selenoyl-trifluoroacetone: Synthesis, properties, and complexation ability towards trivalent rare-earth ions. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Crossman AS, Shi JX, Krajewski SM, Maurer LA, Marshak MP. Synthesis, reactivity, and crystallography of a sterically hindered acyl triflate. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Faghih Z, Neshat A, Mastrorilli P, Gallo V, Faghih Z, Gilanchi S. Cu(II), Ni(II) and Co(II) complexes with homoscorpionate Bis(2-Mercaptobenzimidazolyl) and Bis(2-Mercaptobenzothiazolyl)borate ligands: Synthesis and in vitro cytotoxicity studies. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Hopkins EJ, Krajewski SM, Crossman AS, Maharaj FDR, Schwanz LT, Marshak MP. Group 4 Organometallics Supported by Sterically Hindered
β
‐Diketonates. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Emily J. Hopkins
- Department of Chemistry University of Colorado Boulder CO 80303 Boulder USA
| | | | - Aaron S. Crossman
- Department of Chemistry University of Colorado Boulder CO 80303 Boulder USA
| | | | - Logan T. Schwanz
- Department of Chemistry University of Colorado Boulder CO 80303 Boulder USA
| | - Michael P. Marshak
- Department of Chemistry University of Colorado Boulder CO 80303 Boulder USA
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Larson AT, Crossman AS, Krajewski SM, Marshak MP. Copper(II) as a Platform for Probing the Steric Demand of Bulky β-Diketonates. Inorg Chem 2020; 59:423-432. [DOI: 10.1021/acs.inorgchem.9b02721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alec T. Larson
- Department of Chemistry, University of Colorado at Boulder (CU Boulder), Boulder, Colorado 80303, United States
| | - Aaron S. Crossman
- Department of Chemistry, University of Colorado at Boulder (CU Boulder), Boulder, Colorado 80303, United States
| | - Sebastian M. Krajewski
- Department of Chemistry, University of Colorado at Boulder (CU Boulder), Boulder, Colorado 80303, United States
| | - Michael P. Marshak
- Department of Chemistry, University of Colorado at Boulder (CU Boulder), Boulder, Colorado 80303, United States
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