Cytisine

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:4055
http://www.genome.jp/dbget-bin/www_bget?drug:D07770
http://www.genome.jp/dbget-bin/www_bget?cpd:C10763
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=10235
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=310264982
https://www.chemspider.com/Chemical-Structure.9818.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50143282
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1723152
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=4055
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL497939
https://zinc.docking.org/substances/ZINC000001599730
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/C5E
https://www.drugs.com/international/cytisine.html
https://en.wikipedia.org/wiki/Cytisine