3,4,5-substituted piperidine compounds, these compounds for use in the diagnostic and therapeutic treatment of a warm-blooded animal, especially for the treatment of a disease (=disorder) that depends on activity of renin; the use of a compound of that class for the preparation of a pharmaceutical formulation for the treatment of a disease that depends on activity of renin; the use of a compound of that class in the treatment of a disease that depends on activity of renin; pharmaceutical formulations comprising a 3,4,5-substituted piperidine compound, and/or a method of treatment comprising administering a 3,4,5-substituted piperidine compound, a method for the manufacture of a 3,4,5-substituted piperidine compound, and novel intermediates and partial steps for its synthesis.The compounds are of the formula I, wherein the substitutents are as defined in the specification.