Using O=c1c2n[nH]c3ccccc3c-2nn1-c1ccc(Cl)cc1 to produce O=c1c2n[nH]c3c(c-2nn1-c1ccc(Cl)cc1)CCCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.