Synthesis, Crystallization, Antimicrobial Activity, and Molecular Docking of Crystal bis(6-methoxy-7-methylpurine)-bis(μ-chloro) copper(II) Complex

A new purine derivative, namely 6-methoxy-N7-methylpurine, with the molecular formula (C 7 H 8 N 4 O) was synthesized and its copper(II) complex was studied in the solid state for interaction. It is found that a highly insoluble μ-dichloro-bis-copper complex forms, wherein N3 and N9 nitrogen atoms form purine and participate in bonding. Further, the antimicrobial activity was evaluated against gram-negative, gram-positive, and fungus strains and found significant activity compared with ciprofloxacin and fluconazole. This activity was well supported by molecular docking lower binding interaction with complex and protein DNA gyrase.