Using COC(=O)CS, O=P(OCCOS(=O)(=O)c1ccc(Br)cc1)(N(CCCl)CCCl)N(CCCl)CCCl to produce O=C(O)CSCCOP(=O)(N(CCCl)CCCl)N(CCCl)CCCl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.