Clavulanate

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:48947
http://www.genome.jp/dbget-bin/www_bget?cpd:C06662
http://www.hmdb.ca/metabolites/HMDB0014904
http://www.genome.jp/dbget-bin/www_bget?cpd:C06662
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5280980
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46508845
https://www.chemspider.com/Chemical-Structure.4444466.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50021959
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=21216
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=48947
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL777
https://zinc.docking.org/substances/ZINC000003830569
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000948
http://www.pharmgkb.org/drug/PA164742987
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/J01
https://en.wikipedia.org/wiki/Clavulanic_acid