[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=C][C][C][Branch1][=C][C][=Branch1][C][=O][C][Branch1][Branch1][C][O][Ring1][Ring1][C][O][N][C][=Branch1][C][=O][C@H1][Branch1][Ring1][C][O][N][C][=Branch1][C][=O][C][C][C][C][C][Branch1][C][C][Branch1][C][C][O]"}, {"from": "gpt", "value": "The molecule is an epoxide that is oxiran-2-ylmethanol which is acylated at position 2 by N-(6-hydroxy-6-methylheptanoyl)-L-seryl-4-methylidenenorvalinyl group. It is a proteasome inhibitor isolated from Streptomyces. It has a role as a proteasome inhibitor, an antineoplastic agent, an antimicrobial agent and a bacterial metabolite. It is an epoxide, a ketone, a primary alcohol and a monocarboxylic acid amide."}]