3a-(4-Chlorophenyl)-1-methyl-3a,4-dihydroimidazo[1,5-a]quinazolin-5(3H)-one: Synthesis and In Silico Evaluation as a Ligand in the -Opioid Receptor by Andrea Defant Nicole Innocenti & Ines Mancini

Author:Andrea Defant, Nicole Innocenti & Ines Mancini
Format: pdf
Tags: In the search for fused heterocycle molecules with potential biological activities, the new title compound was produced in racemic form via a four step-synthetic sequence with an overall yield of 60%. It was structurally characterised via 1H-, 13C-NMR and IR analyses, and the molecular composition was confirmed through a high-resolution MS experiment. After predicting its analgesic activity using PASS online software, wherein a good overlap between its enantiomers and the structure of the natural opioid morphine was observed, the compound was evaluated through docking calculations as a ligand of the -opioid receptor. The resulting energy values and interactions were comparable to the data obtained for morphine and its synthetic derivative fentanyl, which is used in the therapeutic treatment of severe forms of pain. Moreover, the title compound displayed favourable predicted blood–brain barrier permeation and drug-likeness., heterocycles; quinazolin-4(3H)-one; -opioid receptor; docking calculation; morphine; ADME prediction


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