864070-18-8Relevant articles and documents
Synthesis method of dapagliflozin intermediate 5-bromo-2-chloro-4 '-ethoxydiphenylmethane
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Paragraph 0024; 0028-0030, (2020/04/06)
The invention discloses a synthesis method of a dapagliflozin intermediate 5-bromo-2-chloro-4 '-ethoxydiphenylmethane. The method comprises the following steps: using 5-bromo-2-chlorobenzoic acid as araw material to be acylated by thionyl chloride, and then carrying out acylation reaction with 1-nitro-4-(phenoxymethyl) benzene, reducing, acetylating, hydrogenating and ethylating to obtain the dapagliflozin intermediate 5-bromo-2-chloro-4'-ethoxydiphenylmethane. The method can effectively avoid the acylation reaction ortho-position by-product so that the preparation of dapagliflozin is convenient for quality control, the reaction is mild, the yield is high and the method has an industrial application prospect.
Synthetic method for empagliflozin related substance IMPD
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, (2019/07/10)
The invention discloses a synthetic method for empagliflozin related substance IMPD. In a current synthetic method of IMPD, a whole synthetic route is longer and the total yield is lower. The synthetic method provided by the invention comprises the following steps: performing hydroxylation by using (2-chloro-5-iodophenyl)(4-fluorophenyl)methanone as a raw material to obtain (2-chloro-5-iodophenyl)(4-hydroxyphenyl)methanone, performing a reaction by using a carbonyl reducing agent to obtain 4-(5-iodo-2-chlorobenzyl)phenol, protecting phenolic hydroxyl groups by using protecting groups such as TBDMS, performing metallization of aromatic iodide by adopting a relatively stable and safe Grignard reagent i-PrMgCl.LiCl, performing methyl glucoside reduction by using a Lewis acid catalyst, and finally performing quenching to obtain the empagliflozin related substance IMPD. The synthetic method provided by the invention has the advantages of an abundant raw material source, a simple, quick andhigh-efficiency reaction, milder reaction conditions, a higher total yield and low costs.
Carbon glucoside sodium glucose transport protein body 2 inhibitor
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, (2018/07/30)
The invention relates to a carbon glucoside sodium glucose transport protein body 2 inhibitor, a preparation method and an application of the inhibitor. The carbon glucoside sodium glucose transport protein body 2 inhibitor has a structure as shown in general formula (I) as shown in the specification.
Dicyclic derivative of glucoside as well as preparation method and application of dicyclic derivative
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, (2018/07/30)
The invention relates to a dicyclic derivative of glucoside as well as a preparation method and the application of the dicyclic derivative. Specifically, the invention relates to a compound as shown in Formula I, a stereisomer or pharmaceutically acceptable salt or ester of the compound, a pharmaceutical composition of the compound, and application of the compound in preparation of drugs for treating diabetes or relevant diseases.
Glucopyranosyl derivative and application thereof in medicine
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Paragraph 0199; 0200, (2017/07/19)
The invention relates to a glucopyranosyl derivative as a sodium-dependent glucose transporter (SGLT) inhibitor, a pharmaceutical composition containing the derivative and an application thereof in medicine, and in particular to the glucopyranosyl derivative as shown in a formula (I) or a pharmaceutically acceptable salt or all stereisomers thereof, or use of the pharmaceutical composition containing the derivative and the derivative and the pharmaceutical composition for preparing medicines treating diabetes and diabetes related diseases.
PROCESSES FOR THE PREPARATION OF EMPAGLIFLOZIN
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Paragraph 0170; 0181; 0182, (2017/09/13)
The present invention relates to processes for the preparation of empagliflozin. In particular, the present invention relates to the preparation of empagliflozin and intermediates thereof. The present invention also relates to co-crystal of empagliflozin and amino acid and amorphous form of empagliflozin.
Glucopyranosyl derivative and application thereof in medicines
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Paragraph 0255; 0260; 0261; 0262; 0263, (2016/10/08)
The invention relates to a glucopyranosyl derivative used as a sodium-dependent glucose transporter (SGLT) inhibitor, a medicinal composition containing the derivative, and an application of the derivative and the medicinal composition in medicines, and especially relates to the glucopyranosyl derivative represented by formula (I) or a pharmaceutically acceptable salt or all stereoisomers thereof, or the medicinal composition containing the derivative, and a use of the derivative and the medicinal composition in the preparation of medicines for treating diabetes and diabetes related diseases.
OPTICALLY PURE BENZYL-4-CHLOROPHENYL-C-GLUCOSIDE DERIVATIVE
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, (2015/07/15)
The present invention belongs to the field of pharmaceutical technology, more specifically relates to optically pure benzyl-4-chlorophenyl-C-glucoside derivatives represented by formulae (II) and (III), a process for preparing these compounds and intermediates thereof, a pharmaceutical formulation and a pharmaceutical composition containing these compounds, and the use of the optically pure benzyl-4-chlorophenyl-C-glucoside derivative as a sodium glucose co-transporter (SGLT) inhibitor in manufacture of a medicament for treating and/or preventing diabetes mellitus (including insulin-dependent diabetes mellitus and non-insulin-dependent diabetes mellitus) or diabetes-associated diseases (including insulin resistance disease and obesity)
Optically pure benzyl-4-chlorophenyl-C-glucoside derivatives as SGLT inhibitors (diabetes mellitus)
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, (2015/07/15)
The present invention belongs to the field of pharmaceutical technology, more specifically relates to optically pure benzyl-4-chlorophenyl-C-glucoside derivatives represented by formulae (II) and (III), a process for preparing these compounds and intermediates thereof, a pharmaceutical formulation and a pharmaceutical composition containing these compounds, and the use of the optically pure benzyl-4-chlorophenyl-C-glucoside derivative as a sodium glucose co-transporter (SGLT) inhibitor in manufacture of a medicament for treating and/or preventing diabetes mellitus (including insulin-dependent diabetes mellitus and non-insulin-dependent diabetes mellitus) or diabetes-associated diseases (including insulin resistance disease and obesity) or
OPTICALLY PURE BENZYL-4-CHLOROPHENYL-C-GLUCOSIDE DERIVATIVE
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, (2016/11/24)
The present invention relates to a pharmaceutical technology, and more specifically, to optically pure benzyl-4-chloro-phenyl glucoside derivatives represented by the chemical formula II and III or a pharmaceutically acceptable salt thereof. The present invention also relates to a method for preparing the compounds and intermediates thereof, pharmaceutical formulations and pharmaceutical compositions containing the compounds, and the use of the optically pure benzyl-4-chloro-phenyl glucoside derivatives as sodium glucose co-transporter (SGLT) inhibitors for the prevention and treatment of the diabetes including the insulin dependent diabetes mellitus and non-insulin dependent diabetes mellitus and the diabetes-related deseases such as insulin-resistant diseases and obesity.COPYRIGHT KIPO 2015