Using Nc1cc(C(=O)O)ccn1, COc1c(OCCCN2CCOCC2)ccc2c1N=C(N)N1CCN=C21 to produce COc1c(OCCCN2CCOCC2)ccc2c1N=C(NC(=O)c1ccnc(N)c1)N1CCN=C21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.