Using CC(C)(C)OC(=O)NCCCC[C@H](N)C(=O)NC[C@H](CC1(C(=O)N[C@@H](Cc2ccc(OC(C)(C)C)cc2)C(=O)OC(C)(C)C)CCCC1)C(=O)OC(C)(C)C, CC=O to produce CCN[C@@H](CCCCNC(=O)OC(C)(C)C)C(=O)NC[C@H](CC1(C(=O)N[C@@H](Cc2ccc(OC(C)(C)C)cc2)C(=O)OC(C)(C)C)CCCC1)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.