Using Nc1ncnc2c1c(-c1ccccc1)cn2-c1cccc(C(=O)O)c1, NCCO to produce Nc1ncnc2c1c(-c1ccccc1)cn2-c1cccc(C(=O)NCCO)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.