Using O=C(O)c1ccccc1, CC(C)(C)OC(=O)N[C@@H]1CN(C(=O)OCc2ccccc2)CC[C@H]1O to produce CC(C)(C)OC(=O)N[C@@H]1CN(C(=O)OCc2ccccc2)CC[C@@H]1OC(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.