Title:Synthesis and In Silico Studies of Quinazolinones as PARP-1 Inhibitors
Volume: 27
Issue: 9
Author(s): Maneesh Guleria, Adarsh Kumar, Ankit Kumar Singh and Pradeep Kumar*
Affiliation:
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, 151401, India
Keywords:
Cancer, PARP-1, quinazolinones, molecular docking studies, ADME, cancer cases.
Abstract:
Background: Cancer is a leading threat to humankind, accounting for nearly one million
deaths in 2018, and the expected number of cancer-related deaths in 2040 is more than 16 million.
The most common causes of cancer deaths are lung, colorectal, stomach, liver and breast cancer,
while the highest number of new cancer cases belong to lung, breast, colorectal, prostate, stomach
and liver cancer.
Introduction: PARP-1 is an enzyme that plays an important role in DNA repair, cell propagation/survival
and death due to its influence on numerous biological processes. Quinazolinones represent an important
scaffold in medicinal chemistry and have a broad spectrum of biological activities.
Methods: In this study, we have synthesized quinazolinones by reaction of 2-aminobenzamide and
substituted aldehydes. Molecular docking studies of synthesized compounds were performed for
their PARP-1 binding affinities using Schrodinger 2016 software. In silico ADME studies were also
performed for the synthesized compounds using the QikProp tool of Schrodinger software.
Results: Results of molecular docking studies indicated that synthesized quinazolinones had a
good affinity towards active site of PARP-1 and compound 4 had the best docking score (-10.343).
Results of ADME studies indicated the drug-like properties of synthesized compounds, which
make them suitable drug candidates.
Conclusion: All the synthesized compounds have a better docking score than niraparib (-9.05).
Further, the synthesized compounds have a favorable ADME profile. Therefore, they may serve as
important leads in discovering PARP-1 inhibitors.