SUBSTITUTED AMINO-CYCLOALKANES

摘要

Novel substituted 4-aminopiperidine derivatives of the formula (I) wherein R<1>, R<2>, R<3>, R<4> and (<A>) are as defined in claim 1, and optically pure enantiomers, mixtures of enantiomers, racemates, diastere­omers, mixtures of diastereomers, diastereomeric racemates, mixtures of dia­ stereomeric racemates and the meso-form thereof as well as pharmaceutically acceptable salts, solvent complexes and morphological forms thereof, exhibit useful parasitic aspartic proteases inhibiting properties and thus, can be used in the form of pharmaceutical compositions as antimalarial medicines. They can be prepared according to known methods.