Using On1nnc2ccccc21, CN(c1cccc2cc(-c3ncc(CCC(=O)O)s3)[nH]c12)S(=O)(=O)c1cccs1 to produce CN(c1cccc2cc(-c3ncc(CCC(=O)NN)s3)[nH]c12)S(=O)(=O)c1cccs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.