Using Cc1ccc(N=C=O)cc1Cl, NCc1cccc2c1CN(C1CCC(=O)NC1=O)C2=O to produce Cc1ccc(NC(=O)NCc2cccc3c2CN(C2CCC(=O)NC2=O)C3=O)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.