Using C1=COCCC1, O=C1N=C(N[C@H]2C[C@@H]3CC[C@H]2C3)SC1CCO to produce O=C1N=C(N[C@H]2C[C@@H]3CC[C@H]2C3)SC1CCOC1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.