Using CCCCCC(C(=O)OCC)c1cccc(NC(=O)C=C(C)C)c1 to produce CCCCCC(C(=O)OCC)c1ccc2c(c1)NC(=O)CC2(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.