Using [BH3-]C#N, N#Cc1c(C2CCCNC2)cc(-c2c(O)cccc2OCC2CC2)nc1N to produce CN1CCCC(c2cc(-c3c(O)cccc3OCC3CC3)nc(N)c2C#N)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.