Using COc1ccc2cc(N3CCC4(CCNCC4)CC3)ccc2c1, CC(=O)O[BH-](OC(C)=O)OC(C)=O to produce COc1ccc2cc(N3CCC4(CCN(C)CC4)CC3)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.