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A compound and selected technology, applied in the field of DPP-4-related diseases, dipeptidyl peptidase IV (DPP-4) inhibitor compounds, can solve GLP-1 inactivation and other problems
Active Publication Date: 2014-05-07
NANJING HUAWE MEDICINE TECH DEV
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However, DPP-4 can rapidly cleave proline or alanine at the second position of the N-terminal of the GLP-1 peptide chain in vivo, resulting in the inactivation of GLP-1
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Embodiment 1
[0073]
[0074] experiment procedure:
[0075] first step:
[0076] Method A
[0077] Weigh Boc-(R)-3-amino-4-(2,4,5-trifluorophenyl)butyric acid (1.0g, 3.0mmol), anhydrouspiperazine (0.26g, 3.0mmol), HBTU( 2.27g, 6.0mmol) was added to a 100ml round bottom flask, dissolved with 20ml of DMF, then DIEA (0.78g, 6.0mmol) was added to the reaction solution, and the reaction was stirred at room temperature for 1.5 hours. TLC detection (petroleumether: ethyl acetate = 4:1), the reaction is over, the reaction solution is added to 10 times the amount of water, a white solid precipitates out, filtered, the filter cake is washed with water, and the solid obtained is dried.
[0078] Method B
[0079] Weigh Boc-(R)-3-amino-4-(2,4,5-trifluorophenyl)butyric acid (1.0g, 3.0mmol), anhydrouspiperazine (0.26g, 3.0mmol), DCC( 6.0mmol) and HoBt (6.0mmol) were added to a 100ml round bottom flask, dissolved in 20ml DMF, and then DIEA (12.0mmol) was added to the reaction solution, and the reaction was st...
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Abstract
The invention provides a novel dipeptidyl peptidase IV (DPP-4) inhibitor compound as shown in Formula (I) as shown in the specification. The compound, optical isomers, pharmaceutically acceptable inorganic or organic salt, crystal forms, hydrates or solvates of the compound can be used for treating diabetes, particularly non-insulin dependent diabetes, and other diseases related to DPP-4. Definitions of substituents in the general formula (I) are the same as those in the specification.
Description
Technical field [0001] The present invention belongs to the field of organic synthesis, and specifically relates to a novel dipeptidyl peptidase IV (DPP-4) inhibitor compound and its use for treating and preventing diabetes and other diseases related to DPP-4. Background technique [0002] Diabetes mellitus is a chronic metabolic disease caused by various pathogenic factors such as genetic factors, immune dysfunction, microbial infections and their toxins, free radical toxins, and mental factors. It is clinically characterized by high blood sugar. It can be divided into type 1 diabetes (insulin-dependent), type 2 diabetes (non-insulin-dependent), gestational diabetes and other special types of diabetes. Among diabetic patients, type 2 diabetes accounts for about 95%. [0003] At present, the main oral hypoglycemic drugs are: sulfonylureas (SU), biguanides, α-glucosidase inhibitors, non-sulfonylureas insulin secretion drugs and insulin sensitizers: thiazolidinediones. These drugs ...
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