Using NC1CCOCC1, O=C(O)c1ccc(OCc2c(-c3ccccn3)noc2CO)nc1 to produce O=C(NC1CCOCC1)c1ccc(OCc2c(-c3ccccn3)noc2CO)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.