SMILES: C[C@H]1[C@H]2C(=O)C[C@]3([C@@](O2)([C@H]([C@H](O3)C)C(=O)O)O[C@@H]1[C@H](C)/C=C(\\C)/C=C/C(=C\\4/C(=O)CNC4=O)/O)C
Description: The molecule is an organic heterotricyclic compound and tetramic acid derivative isolated from a mutant strain of Saccharothrix syringae. Nocamycin E exhibits considerably lower antibacterial activity than the corresponding methyl ester, nocamycin I. It has a role as a bacterial metabolite. It is a gamma-lactam, an enol, a monocarboxylic acid, an olefinic compound, an organic heterotricyclic compound, a spiroketal and a member of tetramic acids. It is a conjugate acid of a nocamycin E(2-).