Using COc1cc(Nc2nccc(Nc3ccc4c(c3)N(C(C)=O)CC4(C)C)n2)cc(OC)c1OC to produce COc1cc(Nc2nccc(Nc3ccc4c(c3)NCC4(C)C)n2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.