Using CCOC(=O)C1CC2=C(CCC(Cc3ccc(OC)cc3)C2)NC1=O to produce CCOC(=O)C1CC2CC(Cc3ccc(OC)cc3)CCC2NC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.