Described are compounds of the general formula (I)
and pharmaceutically acceptable salt thereof, in which R2, R3, W,and X have the definitions illustrated in detail in the description, as beta-secretase, cathepsin D, plasmepsin II and/or HIV protease inhibitors.
The application relates to substituted 4-phenylpiperidines of the general formula and their salts, preferably their pharmaceutically acceptable salts, in which R
2
, R
3
, W and X have the meanings explained in the description, a process for their preparation and the use of these compounds as medicines, especially as renin inhibitors.