Using COCOc1nn(-c2ccccc2)cc1C=O, CCOP(=O)(Cc1csc(C)n1)OCC to produce COCOc1nn(-c2ccccc2)cc1/C=C/c1csc(C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.