Using COS(=O)(=O)OC, c1ccc(COCCCc2nc3cccnc3[nH]2)cc1 to produce Cn1c(CCCOCc2ccccc2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.