Using CCOC(=O)c1cc(C=O)c2ccccn2c1=O, Cc1ccnc(C2(C#N)CCNCC2)c1 to produce CCOC(=O)c1cc(CN2CCC(C#N)(c3cc(C)ccn3)CC2)c2ccccn2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.