Using O=C(O)c1ccccc1, CC(C)(C)OC(=O)N1CC[C@@H](O)[C@H]1COCc1ccccc1 to produce CC(C)(C)OC(=O)N1CC[C@H](OC(=O)c2ccccc2)[C@H]1COCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.