Term Name:	PS-519
Synonyms:	(1R,4R,5S)-1-[(1S)-1-hydroxy-2-methylpropyl]-4-propyl-6-oxa-2-azabicyclo[3.2.0]heptane-3,7-dione
Definition:	A beta-lactone proteasome inhibitor derived from lactacystin.
Ontology:	ChEBI [CHEBI:52724]  ( EBI )