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11 results about "SGLT Inhibitors" patented technology

Synthesis method for preparing SGLT inhibitor intermediate

ActiveUS12448360B2Organic chemistrySandmeyer reactionBiochemical engineering
A method for preparing compound 1 and compound 2 having a structure as shown below, the method includes the following steps:1) subjecting 2,3-dihydrobenzofuran-7-amine as a raw material to a selective-dibromination with a brominating reagent to obtain 4,6-dibromo-2,3-dihydrobenzofuran-7-amine;2) subjecting 4,6-dibromo-2,3-dihydrobenzofuran-7-amine obtained in the step 1) to Sandmeyer reaction for chlorination to obtain 4,6-dibromo-7-chloro-2,3-dihydrobenzofuran;3-1) selectively debrominating from 4,6-dibromo-7-chloro-2,3-dihydrobenzofuran obtained in the step 2) using a strong base, and then adding a formylation reagent to obtain compound 1;3-2) selectively debrominating from 4,6-dibromo-7-chloro-2,3-dihydrobenzofuran obtained in the step 2) using a strong base, and then reacting with 4-cyclopropyl benzaldehyde to obtain compound 2.
Owner:DAEWOONG PHARM CO LTD

Process for the preparation of sglts inhibitor intermediates

The present application belongs to the field of pharmaceutical chemistry, and relates to a preparation method of an intermediate of SGLTs inhibitor, wherein the SGLTs inhibitor is a glucopyranosyl derivative. Specifically, the preparation method provided by the present application has the advantages of mild reaction condition, simple post-treatment, easy purification, low requirement for equipment, low production cost, safe and controllable process, high optical purity of the obtained product, and suitability for commercial production.
Owner:YICHANG HEC CHANGJIANG PHARMA CO LTD

Method for producing intermediate useful for synthesis of SGLT inhibitor

To provide a novel method for producing a compound of Chemical Formula 9, which is an intermediate useful for the synthesis of an SGLT inhibitor.MEANS FOR SOLVING THE PROBLEM: Developed is a synthesis method utilizing a more commercially available starting material, having a short reaction step and a high total yield. A compound of Chemical Formula 9, which is an important intermediate for a compound of Chemical Formula I as an SGLT inhibitor, can be obtained with high yield and high quality.SELECTED DRAWING: None
Owner:DAEWOONG PHARM CO LTD

Intermediate useful for synthesis of SGLT inhibitor and method for preparing SGLT inhibitor using same

An intermediate useful for the synthesis of an SGLT inhibitor and a method for preparing an SGLT inhibitor are provided. By employing an intermediate having Chemical Formula 5, the difficulty of purification with existing processes can be solved, the quality requirements for related substances can be achieved with only one purification step, and the quality control problem in each step can be solved by performing several steps in situ. A method for synthesizing a compound of Chemical Formula 1 by using a compound of Chemical Formula 5 enables purification in an earlier step, thereby solving the problems of existing synthesis processes, in which the quality requirements for related substances were difficult to control step-by-step due to a continuous process, thereby minimizing the amount of related substances in the final product. In addition, the yield of a diphenylmethane derivative according to Chemical Formula 1 is increased.
Owner:DAEWOONG PHARM CO LTD

Method for preparing SGLT inhibitor

An intermediate useful for the synthesis of an SGLT inhibitor and a method for preparing an SGLT inhibitor are provided. By employing an intermediate having Chemical Formula 5, the difficulty of purification with existing processes can be solved, the quality requirements for related substances can be achieved with only one purification step, and the quality control problem in each step can be solved by performing several steps in situ. A method for synthesizing a compound of Chemical Formula 1 by using a compound of Chemical Formula 5 enables purification in an earlier step, thereby solving the problems of existing synthesis processes, in which the quality requirements for related substances were difficult to control step-by-step due to a continuous process, thereby minimizing the amount of related substances in the final product. In addition, the yield of a diphenylmethane derivative according to Chemical Formula 1 is increased.
Owner:DAEWOONG PHARM CO LTD

Crystalline form of SGLT inhibitor

An intermediate useful for the synthesis of an SGLT inhibitor and a method for preparing an SGLT inhibitor are provided. By employing an intermediate having Chemical Formula 5, the difficulty of purification with existing processes can be solved, the quality requirements for related substances can be achieved with only one purification step, and the quality control problem in each step can be solved by performing several steps in situ. A method for synthesizing a compound of Chemical Formula 1 by using a compound of Chemical Formula 5 enables purification in an earlier step, thereby solving the problems of existing synthesis processes, in which the quality requirements for related substances were difficult to control step-by-step due to a continuous process, thereby minimizing the amount of related substances in the final product. In addition, the yield of a diphenylmethane derivative according to Chemical Formula 1 is increased.
Owner:DAEWOONG PHARM CO LTD