Regast

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:119486
http://www.hmdb.ca/metabolites/HMDB0014763
http://www.genome.jp/dbget-bin/www_bget?drug:D00896
http://www.genome.jp/dbget-bin/www_bget?cpd:C08088
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=64139
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506827
https://www.chemspider.com/Chemical-Structure.57715.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=2483
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=195085
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=119486
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL223228
https://zinc.docking.org/substances/ZINC000002020233
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000709
http://www.pharmgkb.org/drug/PA449441
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/EFZ
http://www.rxlist.com/cgi/generic/efaviren.htm
https://www.drugs.com/cdi/efavirenz.html
https://en.wikipedia.org/wiki/Efavirenz