Using CN1CCC(c2c[nH]c3ccc(CC(N)CO)cc23)CC1, CCOC(=O)OCC to produce CN1CCC(c2c[nH]c3ccc(CC4COC(=O)N4)cc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.