Using O=Cc1cn(CCCN2C(=O)c3ccccc3C2=O)nn1, C#CCN(C)C1CCCc2cccnc21 to produce CN(Cc1cn(CCCN2C(=O)c3ccccc3C2=O)nn1)C1CCCc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.