Using CCN=C=NCCCN(C)C, O=C(Nc1ccsc1C(=O)O)c1cnc2ccccc2n1 to produce NC(=O)c1sccc1NC(=O)c1cnc2ccccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.