Using O=c1[nH]c2ccccc2n1CCCCl, CN1CN(c2ccccc2)C2(CCNCC2)C1=O to produce CN1CN(c2ccccc2)C2(CCN(CCCn3c(=O)[nH]c4ccccc43)CC2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.