Using Cn1c(C=O)nc2ccccc21, CC(C)(C)OC(=O)NCCCCN to produce Cn1c(CNCCCCNC(=O)OC(C)(C)C)nc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.