1564265-93-5Relevant articles and documents
Preparation of saxagliptin, a novel DPP-IV inhibitor
Savage, Scott A.,Jones, Gregory S.,Kolotuchin, Sergei,Ramrattan, Shelly Ann,Vu, Truc,Waltermire, Robert E.
, p. 1169 - 1176 (2009)
The commercial-scale synthesis of the DPP-IV inhibitor, saxagliptin (1), is described from the two unnatural amino acid derivatives 2 and 3. After the deprotection of 3, the core of 1 is formed by the amide coupling of amino acid 2 and methanoprolinamide
Method for preparing saxagliptin
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Paragraph 0039; 0049-0051; 0054-0057; 0060-0062; 0065, (2020/06/16)
The invention discloses a method for preparing saxagliptin, and belongs to the technical field of drug synthesis. The method comprises the following steps: (a) converting amide on a compound shown ina formula I into cyano and removing Boc groups to obtain a compound shown in a formula II; (b) condensing the compound shown in the formula II and a compound shown in a formula III to obtain a compound shown in a formula IV; and (c) removing Boc groups on the compound shown in the formula IV to obtain a compound shown in a formula V. According to the method, different raw materials and reaction reagents are selected, and a process route is changed, so that four procedures of salifying, condensing, cyanating and de-protecting are shortened into three procedures of cyanating, condensing and de-protecting; meanwhile, cyanating and condensation reaction are realized at the room temperature, the requirements on reaction conditions are reduced, and industrial production can be realized.
Preparation method of medication saxagliptin for treating diabetes
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Paragraph 0052; 0053; 0054, (2019/06/13)
The invention provides a preparation method of saxagliptin with a shorter synthetic route. (S)-3-amino-3-cyano-propionic ether protected by diethyl acetylenedicarboxylate and an amino group is used asa starting material in the presence of an organic phosphine ligand and a palladium catalyst, and is subjected to cyclization, decarboxylation and cyclopropanation to obtain an intermediate product (1S, 3S, 5S)-2-azabicyclo[3.1.0]hexane-3-carbonitrile p-toluenesulfonate, and then the intermediate product is reacted with carboxyl-activated (S)-N-t-butyloxycarboryl-(3-hydroxyadamantane-1-yl)glycineto increase the reaction rate and obtain a saxagliptin product with a high yield and high purity, the reaction route is greatly shortened, the yield in each step is high, the reaction time is short, the production cost is reduced, and industrial production is facilitated.