Using O=C(CCCCl)Nc1cccc(Cc2n[nH]c(=O)c3ccccc23)c1 to produce O=C1CCCN1c1cccc(Cc2n[nH]c(=O)c3ccccc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.