Using CCOC(OCC)c1cc(-c2ccc3c(c2)C(C)(C)OC(=O)N3)co1 to produce CC1(C)OC(=O)Nc2ccc(-c3coc(C=O)c3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.