Using OB(O)c1cccnc1, CN(C)CCNC(=O)c1cccn2c(=O)c3ccc(Br)cc3nc12 to produce CN(C)CCNC(=O)c1cccn2c(=O)c3ccc(-c4cccnc4)cc3nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.