Using Cc1[nH]ncc1-c1cc2nc(CN3CCC4(C3)OCCO4)[nH]c(=O)c2s1 to produce Cc1[nH]ncc1-c1cc2nc(CN3CCC(=O)C3)[nH]c(=O)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.