Using CC(=O)O[BH-](OC(C)=O)OC(C)=O, COCC[C@H]1CN(C2=Nc3ccccc3Nc3sc(C(C)C)nc32)CCN1 to produce COCC[C@H]1CN(C2=Nc3ccccc3Nc3sc(C(C)C)nc32)CCN1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.