Using CC(C)(C)OC(=O)NCc1ccnc(C2(N)CC2)c1, O=C(NC1(C(=O)O)CC1)OCc1ccccc1 to produce CC(C)(C)OC(=O)NCc1ccnc(C2(NC(=O)C3(NC(=O)OCc4ccccc4)CC3)CC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.