negative regulation of positive chemotaxis to cAMP by chlorinated alkylphenone
negative regulation of positive chemotaxis to camp by chlorinated alkylphenone
"Any process that decreases the rate, frequency, or extent of directed movement of a motile cell or organism up a concentration gradient of 3',5'-cAMP by the action of a chlorinated alkylphenone. An alkylphenone is an aromatic polyketide with methyl and chlorine substitutions."