NEW METHOD FOR OBTAINING 5-AMINO 2,3-DIHYDROPHTHALAZINE-1,4-DIONE ALKALI METAL SALTS AND THEIR USE IN MEDICINE
申请人:Abidov Admir Musaevich
公开号:US20110275642A1
公开(公告)日:2011-11-10
The invention is related to a method for preparing 5-amino-2,3-dihydrophthalazine-1,4-dione salt with alkali metals of the formula II wherein 5-nitro-2,3-dihydrophthalazine-1,4-dione is solved in water solution of MOH1 where M has the below mentioned meaning, with formation of solution of 5-nitro-2,3-dihydrophthalazine-1,4-dione alkali metal salt, which is catalytically transformed into 5-amino-2,3-dihydrophthalazine-1,4-dione salt at the temperature 40-900C by means of hydrogen under the pressure 1-4 MPa in at the presence of a transition metal catalyst (Pt, Pd) on activated carbon, and separation of crystalline 5-amino-2,3-dihydrophthalazine-1,4-dione salt is performed by water solution diluting with lower alcohol or cyclic lower ether with cooling to the temperature −5° C. to −15° C., providing that there is used 5-nitro-2,3-dihydrophthalazine-1,4-dione formed in the reaction of anhydride of 3-nitrophthalic acid with hydrazine hydrate in anhydrous acetic acid at the temperature 100-110° C. with distilling the mixture of acetic acid and water off. There was also presented a pharmaceutical composition containing such obtained 5-amino-2,3-dihydrophthalazine-1,4-dione salt with alkali metals and its application in medicine. There was also presented new use of 5-amino-2,3-dihydrophthalazine-1,4-dione sodium salt for production of a drug for treatment of heart diseases, pancreas diseases and diabetes as well as application of sodium salt optionally in combination with lithium salt for treatment of the nervous system diseases. Besides, the methods of treatment of these diseases were also presented. Formula II where M represents Li, Na, K
该发明涉及一种制备式II的碱金属5-氨基-2,3-二氢酞嗪-1,4-二酮盐的方法,其中5-硝基-2,3-二氢酞嗪-1,4-二酮溶于MOH1的水溶液中,其中M具有下面所述的含义,形成5-硝基-2,3-二氢酞嗪-1,4-二酮碱金属盐的溶液,该溶液在存在过渡金属催化剂(Pt,Pd)和活性炭的条件下,在温度40-900C下通过氢气催化转化为5-氨基-2,3-二氢酞嗪-1,4-二酮盐,在冷却至温度-5°C至-15°C的情况下,通过将水溶液稀释至低级醇或环状低级醚中,分离出结晶的5-氨基-2,3-二氢酞嗪-1,4-二酮盐,前提是在无水乙酸中,通过3-硝基苯甲酸酐与肼水合物的反应,在温度100-110°C下蒸馏掉乙酸和水的混合物中形成5-硝基-2,3-二氢酞嗪-1,4-二酮。还提供了含有所获得的碱金属5-氨基-2,3-二氢酞嗪-1,4-二酮盐的制药组合物及其在医学上的应用。还提供了5-氨基-2,3-二氢酞嗪-1,4-二酮钠盐用于治疗心脏疾病、胰腺疾病和糖尿病的药物的新用途,以及钠盐与锂盐的组合治疗神经系统疾病的应用。此外,还提供了治疗这些疾病的方法。其中M代表Li,Na,K。