Luconal

http://www.hmdb.ca/metabolites/HMDB0041916
http://www.genome.jp/dbget-bin/www_bget?drug:D08113
http://www.genome.jp/dbget-bin/www_bget?cpd:C07612
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507635
https://www.chemspider.com/Chemical-Structure.571356.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50369395
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=42375
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=6427
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1201199
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000020
http://www.pharmgkb.org/drug/PA450203
http://www.rxlist.com/cgi/generic/eligard.htm
https://www.drugs.com/cdi/leuprolide.html
https://en.wikipedia.org/wiki/Leuprorelin