738606-46-7Relevant articles and documents
Preparation method of bepiridic acid
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Paragraph 0058-0061; 0067; 0068; 0074; 0075, (2021/08/11)
The invention relates to a preparation method of bepiridic acid, and the method comprises the following process steps: (1) synthesis of an intermediate BP-B: dissolving a compound A in nitromethane, and carrying out nucleophilic reaction under alkaline conditions to obtain the intermediate BP-B; (2) synthesis of an intermediate BP-C: carrying out a Nef Reaction reaction on the intermediate BP-B obtained in the step (1) under an alkaline condition to obtain the intermediate BP-C; (3) synthesis of beparidic: carrying out a reduction reaction on the intermediate BP-C obtained in the step (2) and a reducing agent to obtain the beparidic. In the second-step reaction of the process, use of an expensive p-toluenesulfonyl methyl isocyanide reagent is avoided. The third-step reaction of the process avoids the use of column chromatography separation, and is more suitable for industrial production.
Synthesis of bempedoic acid through electrochemical decarboxylation of dialkylated malonic acid
Xu, Zhimin,Zheng, Yue,Tian, Lifang,Wang, Yahui
, p. 3608 - 3612 (2021/05/21)
Bempedoic acid is a small-molecule inhibitor of adenosine triphosphate-citrate lyase (ACL) that is effective in the treatment of hypercholesterolemia and hypertension. In this paper, a new, six-step synthesis of bempedoic acid with 42% overall yield is reported. Ketone formation by electrochemical decarboxylation of dialkylated malonic acid is introduced as the key step of this process. This method uses mild conditions and its high efficiency makes it potentially suitable for industrial production.
Preparation method of Bempedoic acid
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Paragraph 0032-0033, (2021/07/24)
The invention discloses a preparatino method ofBempedoic acid. The preparation method comprises the following steps: carrying out condensation reaction on ethyl isobutyrate and 2-(5-bromo-n-amyl)-1, 3-dioxocyclopentane under the effect of an alkali accelerator, carrying out hydrolysis reaction to obtain an intermediate 8-oxa-2, 2-dimethyl octanoic acid, and carrying out Grignard reaction on the intermediate and 7-bromo-2, 2-dimethyl heptanoic acid to obtain the Bempedoic acid. The preparation method is simple in process, mild in condition, safe and environment-friendly, and provides a new way for industrial production.