Using CC(=O)Nc1nc(N(C(C)=O)C(C)=O)c(CC=O)c(=O)[nH]1, COC(=O)CC[C@H](NC(=O)c1ccc(N)cc1)C(=O)OC to produce COC(=O)CC[C@H](NC(=O)c1ccc(NCCc2c(N(C(C)=O)C(C)=O)nc(NC(C)=O)[nH]c2=O)cc1)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.