In view of our interests'6 in analogs of nonsteroidal antiinflammatory agents in which the carboxylic acid group is fmed conformationally, we have prepared certain 5- alkylindancarboxylic acids for testing as antiinflammatory agents. Independent of our efforts, two other laboratories have prepared the most apparent analog of this type, ie, 6-chloro-5- cyclohexylindan-1-carboxylic acid (S), and reported on its antiinflammatory properties.”,' ...