SMILES: CCC[C@@H]1[C@H]2[C@](C(=O)O2)(NC1=O)[C@H](C(C)C)O
Description: The molecule is a beta-lactone proteasome inhibitor derived from lactacystin. It has a role as a proteasome inhibitor. It is a beta-lactone and a lactam. It derives from a lactacystin.