Using COc1cccc(N=C=O)c1, NCc1ccc2c(c1)C(=O)N(C1CCC(=O)NC1=O)C2=O to produce COc1cccc(NC(=O)NCc2ccc3c(c2)C(=O)N(C2CCC(=O)NC2=O)C3=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.