Using NC(=S)c1cnn(-c2cccnc2)c1, O=C1CCCC(Br)=C1O to produce O=C1CCCc2sc(-c3cnn(-c4cccnc4)c3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.