Using NCc1cccc2c1C(=O)N(C1CCC(=O)NC1=O)C2=O, COc1ccc2c(CC(=O)O)coc2c1 to produce COc1ccc2c(CC(=O)NCc3cccc4c3C(=O)N(C3CCC(=O)NC3=O)C4=O)coc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.