Xantol

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:3219
http://www.hmdb.ca/metabolites/HMDB0001510
http://www.genome.jp/dbget-bin/www_bget?drug:D07591
http://www.genome.jp/dbget-bin/www_bget?cpd:C06860
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=444
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506896
https://www.chemspider.com/Chemical-Structure.431.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50048392
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=42347
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=3219
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL894
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000052
http://www.pharmgkb.org/drug/PA448687
http://www.rxlist.com/cgi/generic/wellbutrin.htm
https://www.drugs.com/bupropion.html
http://www.pdrhealth.com/drugs/rx/rx-mono.aspx?contentFileName=Wel1488.html&contentName=Wellbutrin&contentId=637
https://en.wikipedia.org/wiki/Bupropion