Quinoline-fused both non-peripheral and peripheral ZnII and MgII phthalocyanines: Anti-cholinesterase, anti- ?-glucosidase, DNA nuclease, antioxidant activities, and in silico studies

Quinoline-fused ZnII (ZnPcp/ZnPcnp) and MgII (MgPcp/MgPcnp) phthalocyanines with four 4-methylquinolin-2-ol (1) at non-peripheral or peripheral positions of the phthalocyanine core have been synthesized via cyclotetramerization of phthalonitrile derivatives (CNp/CNnp) in the presence of zinc (II) and magnesium (II) metal ions in this study. After synthesis and characterization processes, anti-cholinesterase, anti-α-glucosidase, DNA nuclease, antioxidant activities, and in silico calculations of both peripheral and non-peripheral ZnII and MgII phthalocyanines were investigated. The inhibitory effects of metallated phthalocyanines on acetylcholinesterase, butyrylcholinesterase, and α-glucosidase enzymes were tested by spectrophotometric method. Theoretical methods are used to compare both the chemical and biological activities of the studied phthalonitrile derivatives and metallated phthalocyanine compounds.