Using Cc1ccnc2[nH]c(=O)n(C(=O)OC(C)(C)C)c12, CCCCCCN=C=O to produce CCCCCCNC(=O)n1c(=O)[nH]c2c(C)ccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.