761423-01-2Relevant articles and documents
Method for synthesizing ipragliflozin
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, (2018/07/30)
The invention discloses a method for synthesizing ipragliflozin. The method comprises the following steps: (1) generating alkylation reaction by formula-4 compound and formula-5 compound to generate aformula-6 compound; (2) carrying out deprotection on the formula-6 compound to generate a formula-7 compound, i.e., ipragliflozin. Compared with the prior art, the preparation method disclosed by theinvention is characterized in that adopted starting raw materials are cheap and can be easily obtained, a synthesis route is short, operation is convenient, cost is lower and general yield is high. The method conforms to the concept of green chemistry and is suitable for industrial production. (The formulas are shown in the description.).
Discovery of Ipragliflozin (ASP1941): A novel C-glucoside with benzothiophene structure as a potent and selective sodium glucose co-transporter 2 (SGLT2) inhibitor for the treatment of type 2 diabetes mellitus
Imamura, Masakazu,Nakanishi, Keita,Suzuki, Takayuki,Ikegai, Kazuhiro,Shiraki, Ryota,Ogiyama, Takashi,Murakami, Takeshi,Kurosaki, Eiji,Noda, Atsushi,Kobayashi, Yoshinori,Yokota, Masayuki,Koide, Tomokazu,Kosakai, Kazuhiro,Ohkura, Yasufumi,Takeuchi, Makoto,Tomiyama, Hiroshi,Ohta, Mitsuaki
, p. 3263 - 3279 (2012/07/14)
A series of C-glucosides with various heteroaromatics has been synthesized and its inhibitory activity toward SGLTs was evaluated. Upon screening several compounds, the benzothiophene derivative (14a) was found to have potent inhibitory activity against SGLT2 and good selectivity versus SGLT1. Through further optimization of 14a, a novel benzothiophene derivative (14h; ipragliflozin, ASP1941) was discovered as a highly potent and selective SGLT2 inhibitor that reduced blood glucose levels in a dose-dependent manner in diabetic models KK-Ay mice and STZ rats.
METHOD FOR PRODUCING C-GLYCOSIDE DERIVATIVE AND SYNTHETIC INTERMEDIATE THEREOF
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Page/Page column 12, (2009/10/06)
The present invention provides a method for producing a C-glycoside derivative, which can produce the C-glycoside derivative at a high yield and at a low cost, which conforms to environmental protection, and which is applicable industrially. The C-glycoside derivative is useful for treating and preventing diabetes such as insulin-dependent diabetes (type 1 diabetes), non-insulin-dependent diabetes (type 2 diabetes) and the like and various diabetes-related diseases including insulin-resistant diseases and obesity.
C-GLYCOSIDE DERIVATIVES AND SALTS THEREOF
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Page/Page column 23-24, (2008/06/13)
The present invention provides C-glycoside derivatives and salts thereof, wherein B ring is bonded to A ring via -X- and A ring is directly bonded to the glucose residue, and it is usable as a Na+-glucose cotransporter inhibitor, especially for a therapeutic and/or preventive agent for diabetes such as insulin-dependent diabetes (type 1 diabetes) and insulin-independent diabetes (type 2 diabetes), as well as diabetes related diseases such as an insulin-resistant diseases and obesity.