Abstract
Drug-like properties play pivotal roles in drug adsorption, distribution, metabolism, excretion,
and toxicity. Therefore, efficiently optimizing these properties is essential for the successful
development of novel therapeutics. Understanding the structure–property relationships of clinically
approved drugs can provide valuable insights for drug design and optimization strategies. Among
the new drugs approved in 2023, which include 31 small-molecule drugs in the US, the structureproperty
relationships of nine drugs were compiled from the medicinal chemistry literature, in
which detailed information on pharmacokinetic and/or physicochemical properties was reported not
only for the final drug but also for its key analogs generated during drug development. The structure-
property relationships of nine newly approved drugs are summarized, including three kinase
inhibitors and three G-protein-coupled receptor antagonists. Several optimization strategies, such as
bioisosteric replacement and steric handle installation, have successfully produced clinical candidates
with enhanced physicochemical and pharmacokinetic properties. The summarized structure–
property relationships demonstrate how appropriate structural modifications can effectively improve
overall drug-like properties. The ongoing exploration of structure–property relationships of clinically
approved drugs is expected to offer valuable guidance for developing future drugs.
Keywords:
Structure-property relationship, metabolic stability, covalent drugs, lead optimization, candidate selection, drug discovery.
Graphical Abstract
[23]
Mainolfi, N.; Ehara, T.; Karki, R.G.; Anderson, K.; Mac Sweeney, A.; Liao, S.M.; Argikar, U.A.; Jendza, K.; Zhang, C.; Powers, J.; Klosowski, D.W.; Crowley, M.; Kawanami, T.; Ding, J.; April, M.; Forster, C.; Serrano-Wu, M.; Capparelli, M.; Ramqaj, R.; Solovay, C.; Cumin, F.; Smith, T.M.; Ferrara, L.; Lee, W.; Long, D.; Prentiss, M.; De Erkenez, A.; Yang, L.; Liu, F.; Sellner, H.; Sirockin, F.; Valeur, E.; Erbel, P.; Ostermeier, D.; Ramage, P.; Gerhartz, B.; Schubart, A.; Flohr, S.; Gradoux, N.; Feifel, R.; Vogg, B.; Wiesmann, C.; Maibaum, J.; Eder, J.; Sedrani, R.; Harrison, R.A.; Mogi, M.; Jaffee, B.D.; Adams, C.M. Discovery of 4-((2S,4S)-4-ethoxy-1-((5-methoxy-7-methyl-1H-indol-4-yl)methyl)piperidin-2-yl)benzoic acid (LNP023), a factor B inhibitor specifically designed to be applicable to treating a diverse array of complement mediated diseases.
J. Med. Chem., 2020,
63(11), 5697-5722.
[
http://dx.doi.org/10.1021/acs.jmedchem.9b01870] [PMID:
32073845]
[68]
Owen, D.R.; Allerton, C.M.N.; Anderson, A.S.; Aschenbrenner, L.; Avery, M.; Berritt, S.; Boras, B.; Cardin, R.D.; Carlo, A.; Coffman, K.J.; Dantonio, A.; Di, L.; Eng, H.; Ferre, R.; Gajiwala, K.S.; Gibson, S.A.; Greasley, S.E.; Hurst, B.L.; Kadar, E.P.; Kalgutkar, A.S.; Lee, J.C.; Lee, J.; Liu, W.; Mason, S.W.; Noell, S.; Novak, J.J.; Obach, R.S.; Ogilvie, K.; Patel, N.C.; Pettersson, M.; Rai, D.K.; Reese, M.R.; Sammons, M.F.; Sathish, J.G.; Singh, R.S.P.; Steppan, C.M.; Stewart, A.E.; Tuttle, J.B.; Updyke, L.; Verhoest, P.R.; Wei, L.; Yang, Q.; Zhu, Y. An oral SARS-CoV-2 M pro inhibitor clinical candidate for the treatment of COVID-19.
Science, 2021,
374(6575), 1586-1593.
[
http://dx.doi.org/10.1126/science.abl4784] [PMID:
34726479]