Using CC(=O)O[BH-](OC(C)=O)OC(C)=O, Clc1ccc2c(c1)CN(C1CCNC1)Cc1nnc(C3CCN(c4ccccn4)CC3)n1-2 to produce CN1CCC(N2Cc3cc(Cl)ccc3-n3c(nnc3C3CCN(c4ccccn4)CC3)C2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.