Using O=C(CBr)c1ccncc1, CCOC(=O)Nc1cccc(Cn2nc(C(N)=S)ccc2=O)c1 to produce CCOC(=O)Nc1cccc(Cn2nc(-c3nc(-c4ccncc4)cs3)ccc2=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.