Using CC(C)(C)OC(=O)N1CCOc2c(cccc2C2=CCCC2)C1 to produce CC(C)(C)OC(=O)N1CCOc2c(cccc2C2CCCC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.