Using O=C(O)c1cc[nH]c1, Cc1cc(NC(=O)OC(C)(C)C)nc(C)c1CN to produce Cc1cc(NC(=O)OC(C)(C)C)nc(C)c1CNC(=O)c1cc[nH]c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.