Using Cc1ccc2nnc(Cc3ccc4ncc(-c5cnn(C6CNC6)c5)cc4c3)n2n1, CC(=O)O[BH-](OC(C)=O)OC(C)=O to produce Cc1ccc2nnc(Cc3ccc4ncc(-c5cnn(C6CN(C)C6)c5)cc4c3)n2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.