Using O=c1[nH]c2ccccc2n1CCCN1CCC(n2c(=S)[nH]c3cc(Cl)ccc32)CC1, CI to produce CSc1nc2cc(Cl)ccc2n1C1CCN(CCCn2c(=O)[nH]c3ccccc32)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.