Using CC1(C)CNc2cc(Cl)ncc21, CC(C)(C)OC(=O)OC(=O)[O-] to produce CC(C)(C)OC(=O)N1CC(C)(C)c2cnc(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.