The invention provides novel halogenated pyrazolo[1,5-a]pyrimidines of formula (I) wherein R, R1, X and Y have different meanings, and pharmaceutically acceptable salts thereof. Compounds of formula (I) are useful for treating or preventing anxiety, epilepsy and sleep disorders including insomnia, and for inducing sedation-hypnosis, anesthesia, sleep and muscle relaxation. The invention also provides synthetic procedures for preparing said compounds and certain intermediates, as well as intermediates themselves.
该发明提供了式(I)的新型卤代
吡唑并[1,5-a]
嘧啶化合物,其中R,R1,X和Y具有不同的含义,以及其药学上可接受的盐。式(I)的化合物可用于治疗或预防焦虑症,癫痫和睡眠障碍,包括失眠,并用于诱导镇静-催眠,麻醉,睡眠和肌肉松弛。该发明还提供了用于制备所述化合物和某些中间体的合成方法,以及中间体本身。