Inhibiting SARS-CoV-2 viral entry by targeting spike:ACE2 interaction with O-modified quercetin derivatives
Reuben James Z Rosal, Monissa C Paderes
RSC Medicinal Chemistry, doi:10.1039/d4md00286e
The cell entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is mediated by the interaction between the receptor-binding domain of its spike (S) protein and human angiotensinconverting enzyme 2 (ACE2). Quercetin, a flavonoid found abundantly in plants, shows potential as a SARS-CoV-2 S:ACE2 inhibitor but is known to have low bioavailability. Modification of quercetin by capping its hydroxyl moieties could enhance the metabolic stability, solubility, and bioavailability, and reduce toxicity. In this study, sixteen ( 16 ) O-modified quercetin derivatives were synthesized by incorporating alkyl and acyl moieties of varying lengths, sizes, and polarities to the hydroxyl groups. The SARS-CoV-2 S:ACE2 inhibitory activity and toxicity of the synthesized derivatives were assessed in vitro, and their physicochemical properties, pharmacokinetics, and drug-likeness were predicted and evaluated using the SwissADME web tool. Results showed that functionalization of the hydroxyl moieties of quercetin generally resulted in more potent inhibitors (>50% inhibition). Five (5) derivatives displayed a dose-dependent inhibition against the SARS-CoV-2 S:ACE2 interaction with promising IC 50 values (i.e., 2e (IC 50 = 7.52 μM), 3a (IC 50 = 5.00 μM), 3b (IC 50 = 25.70 μM), 3c (IC 50 = 2.22 μM), and 4b (IC 50 = 3.28 μM)). Moreover, these compounds exhibited low hepato-, nephro-, and cardiotoxicity, and their SwissADME profiles indicated favorable physicochemical, pharmacokinetic, and drug-like properties, suggesting their potential as promising lead SARS-CoV-2 S:ACE2 inhibitors.
Author contributions Synthesis and characterization, methodology, investigation, and formal analysis, R. J. Z. R.; writingoriginal draft, review, and editing, R. J. Z. R. and M. C. P.; conceptualization, validation, funding acquisition, supervision, and project administration, M. C. P.
Conflicts of interest The authors declare no conflict of interest.
References
Al-Jabban, Zhang, Guanglin, Mekuria, Harinantenaina et al., None, Nat. Prod. Commun
Almeida, Borge, Piskula, Tudose, Tudoreanu et al., None, Compr. Rev. Food Sci. Food Saf
Antonio, Wiedemann, Veiga-Junior, None, RSC Adv
Baell, Nissink, None, ACS Chem. Biol
Bojadzic, Alcazar, Chen, Chuang, Condor Capcha et al., None, ACS Infect. Dis
Brenk, Schipani, James, Krasowski, Gilbert et al., None, ChemMedChem
Cao, Jing, Wu, Shi, None, Int. J. Food Sci. Nutr
Carino, Moraca, Fiorillo, Marchianò, Sepe et al., None, Front. Chem
Cui, Yang, Yang, None, Front. Mol. Biosci
Daina, Michielin, Zoete, None, Sci. Rep
Danihelová, Viskupičová, Šturdík, None, Acta Chim. Slov
Dong, Galvan Achi, Du, Rong, Cui, None, Cell Insight
Francisco, Paderes, None, ACS Omega
Geldenhuys, Mohammad, Adkins, Lockman, None, Ther. Delivery
Guan, Yang, Cai, Sun, Di et al., None, MedChemComm
Hasnat, Shompa, Islam, Alam, Richi et al., None, Heliyon
Hernandez, Genio, Casanova, Conato, Paderes, None, ChemistryOpen
Li, None, Annu. Rev. Virol
Li, Yao, Han, Yang, Chaudhry et al., None, Nutrients
Lin, Will, None, Toxicol. Sci
Lipinski, Lombardo, Dominy, Feeney, None, Adv. Drug Delivery Rev
Lipinski, Lombardo, Dominy, Feeney, None, Adv. Drug Delivery Rev
Lipinski, None, J. Pharmacol. Toxicol. Methods
Ma, -M. Liu, -M. Liu, -Y. Yuan, Xu et al., None, Eur. J. Med. Chem
Mani, Johnson, Steel, Broszczak, Neilsen et al., None, Virus Res
Martin, None, J. Med. Chem
Mattarei, Biasutto, Rastrelli, Garbisa, Marotta et al., None, Molecules
Meanwell, None, Chem. Res. Toxicol
Mouffouk, Mouffouk, Mouffouk, Hambaba, Haba, None, Eur. J. Pharmacol
Muchtaridi, Fauzi, Khairul Ikram, Mohd, Gazzali et al., None, Molecules
Ni, Yang, Yang, Bao, Li et al., None, Crit. Care
Pan, Fang, Zhang, Pan, Liu et al., None, Comput. Struct. Biotechnol. J
Perlman, Netland, None, Nat. Rev. Microbiol
Prachayasittikul, Prachayasittikul, None, EXCLI J
Rao, Owoyale, None, J. Heterocyclic Chem
Shang, Wan, Luo, Ye, Geng et al., None, Proc. Natl. Acad. Sci. U. S. A
Sohrabi, Alsafi, O'neill, Khan, Kerwan et al., None, Int. J. Surg
Sopjani, Falco, Impellitteri, Guarrasi, Nguyen Thi et al., None, Phytother. Res
Stretch, /z) calculated for
Stretch, CO stretch), 1585 (aromatic C-C stretch), 1321 (C-O stretch). HRMS-ESI + (m/z) calculated for
Stretch, CO stretch), 1587 (aromatic C-C stretch), 1275 (C-O stretch). HRMS-ESI + (m/z) calculated for
Stretch, CO stretch), 1587 (aromatic C-C stretch), 1277 (C-O stretch). HRMS-ESI + (m/z) calculated for
Stretch, CO stretch), 1589 (aromatic C-C stretch), 1277 (C-O stretch). HRMS-ESI + (m/z) calculated for
Stretch, CO stretch), 1597 (aromatic C-C stretch), 1279 (C-O stretch), 1225 (C-F stretch)
Stretch, HRMS-ESI + (m/z) calculated for
Stretch, HRMS-ESI + (m/z) calculated for
Stretch, None
Stretch, None
Stretch, None
Stretch, None
Stretch, None
Stretch, None
Stretch, None
Stretch, None
Szabó, Crowe, Mamotte, Strappe, None, Front. Cell. Infect. Microbiol
Thilakarathna, Rupasinghe, None, Nutrients
Toor, Banerjee, Lipsa Rath, Darji, None, Eur. J. Pharmacol
Tzvetkov, Kirilov, Matin, Atanasov, None, Nephrol., Dial., Transplant
Veber, Johnson, Cheng, Smith, Ward et al., None, J. Med. Chem
Walle, None, Mol. Pharmaceutics
Williamson, Kerimi, None, Biochem. Pharmacol
Ye, Luo, Ye, She, Sun et al., None, Phytomedicine
Zhang, -L. Wu, Zhang, Deng, Peng, None, J. Integr. Med
Zhang, None, ACS Omega
Zhang, Wang, Yang, Zhou, Zhang, None, PLoS One
Zhou, Yang, Wang, Hu, Zhang et al., None, Nature
{ 'indexed': {'date-parts': [[2024, 9, 20]], 'date-time': '2024-09-20T04:19:46Z', 'timestamp': 1726805986178},
'reference-count': 51,
'publisher': 'Royal Society of Chemistry (RSC)',
'issue': '9',
'license': [ { 'start': { 'date-parts': [[2025, 8, 16]],
'date-time': '2025-08-16T00:00:00Z',
'timestamp': 1755302400000},
'content-version': 'am',
'delay-in-days': 593,
'URL': 'http://rsc.li/journals-terms-of-use'}],
'funder': [ { 'DOI': '10.13039/501100011096',
'name': 'Philippine Council for Health Research and Development',
'doi-asserted-by': 'publisher',
'id': [{'id': '10.13039/501100011096', 'id-type': 'DOI', 'asserted-by': 'publisher'}]},
{ 'DOI': '10.13039/501100010892',
'name': 'Department of Science and Technology, Republic of the Philippines',
'doi-asserted-by': 'publisher',
'id': [{'id': '10.13039/501100010892', 'id-type': 'DOI', 'asserted-by': 'publisher'}]}],
'content-domain': {'domain': ['rsc.org'], 'crossmark-restriction': True},
'abstract': '<jats:p>\n'
' <jats:italic>O</jats:italic>-Alkylated and acylated quercetin derivatives were '
'found to inhibit SARS-CoV-2 S:ACE2 interaction <jats:italic>in vitro</jats:italic> and '
'exhibited low hepato-, nephro-, and cardiotoxicity.</jats:p>',
'DOI': '10.1039/d4md00286e',
'type': 'journal-article',
'created': {'date-parts': [[2024, 8, 16]], 'date-time': '2024-08-16T14:57:45Z', 'timestamp': 1723820265000},
'page': '3212-3222',
'update-policy': 'http://dx.doi.org/10.1039/rsc_crossmark_policy',
'source': 'Crossref',
'is-referenced-by-count': 0,
'title': 'Inhibiting SARS-CoV-2 viral entry by targeting spike:ACE2 interaction with <i>O</i>-modified '
'quercetin derivatives',
'prefix': '10.1039',
'volume': '15',
'author': [ { 'ORCID': 'http://orcid.org/0009-0008-4028-9917',
'authenticated-orcid': False,
'given': 'Reuben James Z.',
'family': 'Rosal',
'sequence': 'first',
'affiliation': [ { 'name': 'Institute of Chemistry, College of Science, University of the '
'Philippines Diliman, Quezon City 1101, Philippines'}]},
{ 'ORCID': 'http://orcid.org/0000-0002-4042-4153',
'authenticated-orcid': False,
'given': 'Monissa C.',
'family': 'Paderes',
'sequence': 'additional',
'affiliation': [ { 'name': 'Institute of Chemistry, College of Science, University of the '
'Philippines Diliman, Quezon City 1101, Philippines'}]}],
'member': '292',
'published-online': {'date-parts': [[2024]]},
'reference': [ { 'key': 'D4MD00286E/cit1/1',
'doi-asserted-by': 'crossref',
'first-page': '71',
'DOI': '10.1016/j.ijsu.2020.02.034',
'volume': '76',
'author': 'Sohrabi',
'year': '2020',
'journal-title': 'Int. J. Surg.'},
{ 'key': 'D4MD00286E/cit2/1',
'doi-asserted-by': 'crossref',
'first-page': '616341',
'DOI': '10.3389/fmolb.2020.616341',
'volume': '7',
'author': 'Cui',
'year': '2020',
'journal-title': 'Front. Mol. Biosci.'},
{ 'key': 'D4MD00286E/cit3/1',
'doi-asserted-by': 'crossref',
'first-page': '270',
'DOI': '10.1038/s41586-020-2012-7',
'volume': '579',
'author': 'Zhou',
'year': '2020',
'journal-title': 'Nature'},
{ 'key': 'D4MD00286E/cit4/1',
'unstructured': 'WHO Coronavirus (COVID-19) Dashboard, https://covid19.who.int , '
'(accessed 2024-03-04)'},
{ 'key': 'D4MD00286E/cit5/1',
'doi-asserted-by': 'crossref',
'first-page': '237',
'DOI': '10.1146/annurev-virology-110615-042301',
'volume': '3',
'author': 'Li',
'year': '2016',
'journal-title': 'Annu. Rev. Virol.'},
{ 'key': 'D4MD00286E/cit6/1',
'doi-asserted-by': 'crossref',
'first-page': '439',
'DOI': '10.1038/nrmicro2147',
'volume': '7',
'author': 'Perlman',
'year': '2009',
'journal-title': 'Nat. Rev. Microbiol.'},
{ 'key': 'D4MD00286E/cit7/1',
'doi-asserted-by': 'crossref',
'first-page': '11727',
'DOI': '10.1073/pnas.2003138117',
'volume': '117',
'author': 'Shang',
'year': '2020',
'journal-title': 'Proc. Natl. Acad. Sci. U. S. A.'},
{ 'key': 'D4MD00286E/cit8/1',
'doi-asserted-by': 'crossref',
'first-page': '422',
'DOI': '10.1186/s13054-020-03120-0',
'volume': '24',
'author': 'Ni',
'year': '2020',
'journal-title': 'Crit. Care'},
{ 'key': 'D4MD00286E/cit9/1',
'doi-asserted-by': 'crossref',
'first-page': '375',
'DOI': '10.1093/ndt/gfad208',
'volume': '39',
'author': 'Tzvetkov',
'year': '2023',
'journal-title': 'Nephrol., Dial., Transplant.'},
{ 'key': 'D4MD00286E/cit10/1',
'doi-asserted-by': 'crossref',
'first-page': 'e27533',
'DOI': '10.1016/j.heliyon.2024.e27533',
'volume': '10',
'author': 'Hasnat',
'year': '2024',
'journal-title': 'Heliyon'},
{ 'key': 'D4MD00286E/cit11/1',
'doi-asserted-by': 'crossref',
'first-page': '43109',
'DOI': '10.1021/acsomega.3c06619',
'volume': '8',
'author': 'Francisco',
'year': '2023',
'journal-title': 'ACS Omega'},
{ 'key': 'D4MD00286E/cit12/1',
'doi-asserted-by': 'crossref',
'first-page': 'e202300087',
'DOI': '10.1002/open.202300087',
'volume': '13',
'author': 'Hernandez',
'year': '2024',
'journal-title': 'ChemistryOpen'},
{ 'key': 'D4MD00286E/cit13/1',
'doi-asserted-by': 'crossref',
'first-page': '1353971',
'DOI': '10.3389/fcimb.2024.1353971',
'volume': '14',
'author': 'Szabó',
'year': '2024',
'journal-title': 'Front. Cell. Infect. Microbiol.'},
{ 'key': 'D4MD00286E/cit14/1',
'doi-asserted-by': 'crossref',
'first-page': '167',
'DOI': '10.3390/nu8030167',
'volume': '8',
'author': 'Li',
'year': '2016',
'journal-title': 'Nutrients'},
{ 'key': 'D4MD00286E/cit15/1',
'doi-asserted-by': 'crossref',
'first-page': '197989',
'DOI': '10.1016/j.virusres.2020.197989',
'volume': '284',
'author': 'Mani',
'year': '2020',
'journal-title': 'Virus Res.'},
{ 'key': 'D4MD00286E/cit16/1',
'doi-asserted-by': 'crossref',
'first-page': '152',
'DOI': '10.1016/j.joim.2020.02.005',
'volume': '18',
'author': 'Zhang',
'year': '2020',
'journal-title': 'J. Integr. Med.'},
{ 'key': 'D4MD00286E/cit17/1',
'doi-asserted-by': 'crossref',
'first-page': '1589',
'DOI': '10.1002/ptr.8123',
'volume': '38',
'author': 'Sopjani',
'year': '2024',
'journal-title': 'Phytother. Res.'},
{ 'key': 'D4MD00286E/cit18/1',
'doi-asserted-by': 'crossref',
'first-page': '114123',
'DOI': '10.1016/j.bcp.2020.114123',
'volume': '178',
'author': 'Williamson',
'year': '2020',
'journal-title': 'Biochem. Pharmacol.'},
{ 'key': 'D4MD00286E/cit19/1',
'doi-asserted-by': 'crossref',
'first-page': '3980',
'DOI': '10.3390/molecules25173980',
'volume': '25',
'author': 'Muchtaridi',
'year': '2020',
'journal-title': 'Molecules'},
{ 'key': 'D4MD00286E/cit20/1',
'doi-asserted-by': 'crossref',
'first-page': '23379',
'DOI': '10.1039/D0RA03774E',
'volume': '10',
'author': 'Antonio',
'year': '2020',
'journal-title': 'RSC Adv.'},
{ 'key': 'D4MD00286E/cit21/1',
'doi-asserted-by': 'crossref',
'first-page': '173759',
'DOI': '10.1016/j.ejphar.2020.173759',
'volume': '891',
'author': 'Mouffouk',
'year': '2021',
'journal-title': 'Eur. J. Pharmacol.'},
{ 'key': 'D4MD00286E/cit22/1',
'doi-asserted-by': 'crossref',
'first-page': '100144',
'DOI': '10.1016/j.cellin.2023.100144',
'volume': '3',
'author': 'Dong',
'year': '2024',
'journal-title': 'Cell Insight'},
{ 'key': 'D4MD00286E/cit23/1',
'doi-asserted-by': 'crossref',
'first-page': '113857',
'DOI': '10.1016/j.ejmech.2021.113857',
'volume': '226',
'author': 'Ma',
'year': '2021',
'journal-title': 'Eur. J. Med. Chem.'},
{ 'key': 'D4MD00286E/cit24/1',
'doi-asserted-by': 'crossref',
'first-page': '153401',
'DOI': '10.1016/j.phymed.2020.153401',
'volume': '85',
'author': 'Ye',
'year': '2021',
'journal-title': 'Phytomedicine'},
{ 'key': 'D4MD00286E/cit25/1',
'doi-asserted-by': 'crossref',
'first-page': '3518',
'DOI': '10.1016/j.csbj.2020.11.010',
'volume': '18',
'author': 'Pan',
'year': '2020',
'journal-title': 'Comput. Struct. Biotechnol. J.'},
{ 'key': 'D4MD00286E/cit26/1',
'doi-asserted-by': 'crossref',
'first-page': '714',
'DOI': '10.1111/1541-4337.12342',
'volume': '17',
'author': 'Almeida',
'year': '2018',
'journal-title': 'Compr. Rev. Food Sci. Food Saf.'},
{ 'key': 'D4MD00286E/cit27/1',
'doi-asserted-by': 'crossref',
'first-page': '3367',
'DOI': '10.3390/nu5093367',
'volume': '5',
'author': 'Thilakarathna',
'year': '2013',
'journal-title': 'Nutrients'},
{ 'key': 'D4MD00286E/cit28/1',
'doi-asserted-by': 'crossref',
'first-page': '826',
'DOI': '10.1021/mp700071d',
'volume': '4',
'author': 'Walle',
'year': '2007',
'journal-title': 'Mol. Pharmaceutics'},
{ 'key': 'D4MD00286E/cit29/1',
'doi-asserted-by': 'crossref',
'first-page': '59',
'DOI': '10.2478/v10188-012-0010-6',
'volume': '5',
'author': 'Danihelová',
'year': '2012',
'journal-title': 'Acta Chim. Slov.'},
{ 'key': 'D4MD00286E/cit30/1',
'first-page': '2113',
'volume': '10',
'author': 'Al-Jabban',
'year': '2015',
'journal-title': 'Nat. Prod. Commun.'},
{ 'key': 'D4MD00286E/cit31/1',
'doi-asserted-by': 'crossref',
'first-page': '4722',
'DOI': '10.3390/molecules15074722',
'volume': '15',
'author': 'Mattarei',
'year': '2010',
'journal-title': 'Molecules'},
{ 'key': 'D4MD00286E/cit32/1',
'doi-asserted-by': 'crossref',
'first-page': '1293',
'DOI': '10.1002/jhet.5570130629',
'volume': '13',
'author': 'Rao',
'year': '1976',
'journal-title': 'J. Heterocyclic Chem.'},
{ 'key': 'D4MD00286E/cit33/1',
'doi-asserted-by': 'crossref',
'first-page': 'e105725',
'DOI': '10.1371/journal.pone.0105725',
'volume': '9',
'author': 'Zhang',
'year': '2014',
'journal-title': 'PLoS One'},
{ 'key': 'D4MD00286E/cit34/1',
'doi-asserted-by': 'crossref',
'first-page': '572885',
'DOI': '10.3389/fchem.2020.572885',
'volume': '8',
'author': 'Carino',
'year': '2020',
'journal-title': 'Front. Chem.'},
{ 'key': 'D4MD00286E/cit35/1',
'doi-asserted-by': 'crossref',
'first-page': '1519',
'DOI': '10.1021/acsinfecdis.1c00070',
'volume': '7',
'author': 'Bojadzic',
'year': '2021',
'journal-title': 'ACS Infect. Dis.'},
{ 'key': 'D4MD00286E/cit36/1',
'doi-asserted-by': 'crossref',
'first-page': '173720',
'DOI': '10.1016/j.ejphar.2020.173720',
'volume': '890',
'author': 'Toor',
'year': '2021',
'journal-title': 'Eur. J. Pharmacol.'},
{ 'key': 'D4MD00286E/cit37/1',
'doi-asserted-by': 'crossref',
'first-page': '18206',
'DOI': '10.1021/acsomega.2c01121',
'volume': '7',
'author': 'Zhang',
'year': '2022',
'journal-title': 'ACS Omega'},
{ 'key': 'D4MD00286E/cit38/1',
'doi-asserted-by': 'crossref',
'first-page': '114',
'DOI': '10.1093/toxsci/kfr339',
'volume': '126',
'author': 'Lin',
'year': '2011',
'journal-title': 'Toxicol. Sci.'},
{ 'key': 'D4MD00286E/cit39/1',
'doi-asserted-by': 'crossref',
'first-page': '42717',
'DOI': '10.1038/srep42717',
'volume': '7',
'author': 'Daina',
'year': '2017',
'journal-title': 'Sci. Rep.'},
{ 'key': 'D4MD00286E/cit40/1',
'doi-asserted-by': 'crossref',
'first-page': '3',
'DOI': '10.1016/S0169-409X(00)00129-0',
'volume': '46',
'author': 'Lipinski',
'year': '2001',
'journal-title': 'Adv. Drug Delivery Rev.'},
{ 'key': 'D4MD00286E/cit41/1',
'doi-asserted-by': 'crossref',
'first-page': '235',
'DOI': '10.1016/S1056-8719(00)00107-6',
'volume': '44',
'author': 'Lipinski',
'year': '2000',
'journal-title': 'J. Pharmacol. Toxicol. Methods'},
{ 'key': 'D4MD00286E/cit42/1',
'doi-asserted-by': 'crossref',
'first-page': '1420',
'DOI': '10.1021/tx200211v',
'volume': '24',
'author': 'Meanwell',
'year': '2011',
'journal-title': 'Chem. Res. Toxicol.'},
{ 'key': 'D4MD00286E/cit43/1',
'doi-asserted-by': 'crossref',
'first-page': '2615',
'DOI': '10.1021/jm020017n',
'volume': '45',
'author': 'Veber',
'year': '2002',
'journal-title': 'J. Med. Chem.'},
{ 'key': 'D4MD00286E/cit44/1',
'doi-asserted-by': 'crossref',
'first-page': '148',
'DOI': '10.1039/C8MD00472B',
'volume': '10',
'author': 'Guan',
'year': '2019',
'journal-title': 'MedChemComm'},
{ 'key': 'D4MD00286E/cit45/1',
'doi-asserted-by': 'crossref',
'first-page': '437',
'DOI': '10.3109/09637486.2012.759186',
'volume': '64',
'author': 'Cao',
'year': '2013',
'journal-title': 'Int. J. Food Sci. Nutr.'},
{ 'key': 'D4MD00286E/cit46/1',
'first-page': '113',
'volume': '15',
'author': 'Prachayasittikul',
'year': '2016',
'journal-title': 'EXCLI J.'},
{ 'key': 'D4MD00286E/cit47/1',
'doi-asserted-by': 'crossref',
'first-page': '961',
'DOI': '10.4155/tde.15.32',
'volume': '6',
'author': 'Geldenhuys',
'year': '2015',
'journal-title': 'Ther. Delivery'},
{ 'key': 'D4MD00286E/cit48/1',
'doi-asserted-by': 'crossref',
'first-page': '3',
'DOI': '10.1016/S0169-409X(00)00129-0',
'volume': '46',
'author': 'Lipinski',
'year': '2001',
'journal-title': 'Adv. Drug Delivery Rev.'},
{ 'key': 'D4MD00286E/cit49/1',
'doi-asserted-by': 'crossref',
'first-page': '3164',
'DOI': '10.1021/jm0492002',
'volume': '48',
'author': 'Martin',
'year': '2005',
'journal-title': 'J. Med. Chem.'},
{ 'key': 'D4MD00286E/cit50/1',
'doi-asserted-by': 'crossref',
'first-page': '36',
'DOI': '10.1021/acschembio.7b00903',
'volume': '13',
'author': 'Baell',
'year': '2018',
'journal-title': 'ACS Chem. Biol.'},
{ 'key': 'D4MD00286E/cit51/1',
'doi-asserted-by': 'crossref',
'first-page': '435',
'DOI': '10.1002/cmdc.200700139',
'volume': '3',
'author': 'Brenk',
'year': '2008',
'journal-title': 'ChemMedChem'}],
'container-title': 'RSC Medicinal Chemistry',
'original-title': [],
'language': 'en',
'link': [ { 'URL': 'http://pubs.rsc.org/en/content/articlepdf/2024/MD/D4MD00286E',
'content-type': 'unspecified',
'content-version': 'vor',
'intended-application': 'similarity-checking'}],
'deposited': { 'date-parts': [[2024, 9, 19]],
'date-time': '2024-09-19T11:14:05Z',
'timestamp': 1726744445000},
'score': 1,
'resource': {'primary': {'URL': 'https://xlink.rsc.org/?DOI=D4MD00286E'}},
'subtitle': [],
'short-title': [],
'issued': {'date-parts': [[2024]]},
'references-count': 51,
'journal-issue': {'issue': '9', 'published-print': {'date-parts': [[2024, 9, 19]]}},
'URL': 'http://dx.doi.org/10.1039/d4md00286e',
'relation': {},
'ISSN': ['2632-8682'],
'subject': [],
'container-title-short': 'RSC Med. Chem.',
'published': {'date-parts': [[2024]]}}