Using O=C(O)c1cc(-c2ccc(C3CC3)nc2)ccn1, COC(=O)c1cccc(N)n1 to produce COC(=O)c1cccc(NC(=O)c2cc(-c3ccc(C4CC4)nc3)ccn2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.