Hydrate of 1-{(2S)-2-amino-4-[2,4-bis(trifluoromethyl)-5,8-di-hydropyrido[3,4-D]pyrimidin-7(6H)-yl]-4-oxobutyl}-5,5-difluoro-piperidin-2-one tartrate

摘要

The present invention relates to 1.5 hydrate of of 1-{(2S)-2-amino-4-[2,4-bis(trifluoromethyl)-5,8-dihydropyrido[3,4-d]pyrimidin-7(6H)-yl]-4-oxobutyl}-5,5-difluoropiperidin-2-one tartrate, a process for preparing the same, and a pharmaceutical composition for inhibiting DPP-IV, which comprises said compound as the active component.

主权项

1. 1.5 Hydrate of 1-{(2S)-2-amino-4-[2,4-bis(trifluoromethyl)-5,8-dihydropyrido[3,4-d]pyrimidin-7(6H)-yl]-4-oxobutyl}-5,5-difluoropiperidin-2-one tartrate salt having a water content in the range of 3.5-5.5%.