The preparation of a number of N-diphenylmethyl-4-alkylpiperidines and N-(9-fluorenyl)-4- alkylpiperidines has been undertaken in order to study the correlation of antitubercular properties and the nature of the 4-alkylpiperidine moiety. These compounds are structurally related to other physiologically active diphenylmethyl derivatives, such as N, N-diethylamin~ diphenylmethane.~ According to a theory advanced by Burger, Graef and Bailey, 4 the ...
