DPP-IV inhibitors

摘要

The invention relates to compounds of formula (I)
<Chemistry id="chema01" num="0001"><Image id="ia01" he="28" wi="45" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" /></Chemistry>
wherein Z, R<Sup>1-3</Sup> and A have the meaning as cited in the description and the claims. Said compounds are useful as DPP-IV inhibitors. The invention also relates to the preparation of such compounds as well as the production and use thereof as medicament.