Using O=C1c2ccccc2C(=O)N1O, CC(C)(C)OC(=O)N[C@H]1CC[C@H](O)CC1 to produce CC(C)(C)OC(=O)N[C@H]1CC[C@@H](ON2C(=O)c3ccccc3C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.