Pravy

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:78540
http://www.genome.jp/dbget-bin/www_bget?drug:D08860
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=11561674
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=310264858
https://www.chemspider.com/Chemical-Structure.9736448.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50248919
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1492727
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=78540
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL514800
https://zinc.docking.org/substances/ZINC000030691736
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/A9L
http://www.rxlist.com/otezla-drug.htm
https://www.drugs.com/cdi/apremilast.html
https://en.wikipedia.org/wiki/Apremilast