Using O=CO, N#Cc1cc2c(cc1NC(=O)COCc1ccccc1)CCC2=O to produce NC(=O)c1cc2c(cc1NC(=O)COCc1ccccc1)CCC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.