prexet

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:63616
http://www.genome.jp/dbget-bin/www_bget?drug:D07472
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=446556
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505640
https://www.chemspider.com/Chemical-Structure.393879.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50027656
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=68446
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=63616
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL225072
https://zinc.docking.org/substances/ZINC000001540998
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DCL000320
http://www.pharmgkb.org/drug/PA10810
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/LYA
http://www.rxlist.com/cgi/generic3/alimta.htm
https://www.drugs.com/cdi/pemetrexed.html
https://en.wikipedia.org/wiki/Pemetrexed