Using N#Cc1ccc(-n2cncc2C=O)cc1, CNCCNC(=O)OC(C)(C)C to produce CN(CCNC(=O)OC(C)(C)C)Cc1cncn1-c1ccc(C#N)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.