Using COc1ccc2ncnc(Nc3ccc(OC4CCNCC4)c(C)c3)c2c1, O=C=NC1CCCC1 to produce COc1ccc2ncnc(Nc3ccc(OC4CCN(C(=O)NC5CCCC5)CC4)c(C)c3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.