Using O=C1N=C(N[C@H]2C[C@@H]3CC[C@H]2C3)SC1CCOC1CCCCO1, C=C(C)CBr to produce C=C(C)CC1(CCOC2CCCCO2)SC(N[C@H]2C[C@@H]3CC[C@H]2C3)=NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.