Using O=C1CCC(c2ccc(NC(=O)CCN3CCC(c4ccccc4)CC3)cc2)=NN1, C=O to produce Cc1cc(-c2ccc(NC(=O)CCN3CCC(c4ccccc4)CC3)cc2)n[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.