Using O=C(O)C1CSC(c2cccnc2)N1, CCCCCCCCCCCCCCCCCCCN to produce CCCCCCCCCCCCCCCCCCCNC(=O)C1CSC(c2cccnc2)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.