Using c1ccc2[nH]nnc2c1, COc1cc(OC)c2c(=O)[nH]c(-c3ccc(N4CCN(CCO)CC4)cc3)nc2c1 to produce c1ccc2c(c1)ncn2CN1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.