Using COS(=O)(=O)OC, CCCCCn1c2nc[nH]c2c(=O)n2c(=S)[nH]nc12 to produce CCCCCn1c2nc[nH]c2c(=O)n2c(SC)nnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.