The present invention provides a process for the production of N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide (zaleplon), an active ingredient that is approved for the treatment of insomnia. The process involves reacting N-[3-[3-(dimethylamino)-1-oxo-2-propenyl]phenyl]-N-ethylacetamide or a salt thereof with 3-amino-4-cyanopyrazole or a salt thereof under acidic conditions in a reaction medium comprising a mixture of water and a water-miscible organic compound.
本发明提供了一种生产N-[3-(3-
氰基
吡唑并[1,5-a]
嘧啶-7-基)苯基]-N-
乙酰乙酸乙酯(
扎来普隆)的方法,该活性成分已获批用于治疗失眠。该方法涉及在含
水和
水溶性有机化合物混合物的反应介质中,在酸性条件下将N-[3-[3-(
二甲氨基)-1-氧代-2-
丙烯基]苯基]-N-乙酰乙酰胺或其盐与
3-氨基-4-氰基吡唑或其盐反应。