Using O=C1OC(CO)(CSc2nc3ccccc3[nH]2)C(Sc2nc3ccccc3[nH]2)=C1O, CN(C)CC(=O)Cl to produce CN(C)CC(=O)OCC1(CSc2nc3ccccc3[nH]2)OC(=O)C(O)=C1Sc1nc2ccccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.