Using [BH3-]C#N, CCOC(=O)c1ccc(Nc2cc3c(cc2C)C(C)(C)CCN3C(C)C)cc1 to produce CCOC(=O)c1ccc(N(C)c2cc3c(cc2C)C(C)(C)CCN3C(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.