Using O=C1CCC(c2ccc3[nH]c(CCCN4C(=O)c5ccccc5C4=O)nc3c2)=NN1 to produce NCCCc1nc2cc(C3=NNC(=O)CC3)ccc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.