1138245-13-2Relevant academic research and scientific papers
Novel method for preparing Mirogabalin
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Paragraph 0014; 0047-0050, (2020/05/30)
The invention relates to a novel method for preparing racemic Mirogabalin. The preparation method comprises the following steps: with 3-ethylbicyclo[3.2. 0]hepta-3-ene-6-ketone A as an initial raw material, carrying out a reaction with cyanoacetate and ammonia water to generate ammonium salt B; heating the ammonium salt B and sulfuric acid to react to generate a diacetic acid compound C; carryingout a reaction on the compound C with urea to generate an imide compound D; degrading the compound D through Hofmann to generate racemic Mirogasabalin hydrochloride E, and then enabling the compound Eto pass through a resolving agent to obtain the Mirogasabalin. Compared with the prior art, the Mirogabalin drug synthesized by the technical scheme of the invention has the characteristics that thereaction condition is mild, the preparation method is simple and convenient, the use of a highly toxic product NaCN is avoided, and the Mirogabalin drug is suitable for industrial production.
METHOD FOR PRODUCING OPTICALLY ACTIVE BICYCLIC -AMINO ACID DERIVATIVE
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, (2015/05/26)
An object of the present invention is to provide an optically active bicyclic γ-amino acid derivative in a high purity. The object can be attained by a mixture of compounds represented by the general formulas (I) and (I'), or a method for producing a compound represented by the general formula (VII) or a salt thereof via the compound (I): wherein R1 and R2 each represent a C1-6 alkyl group or the like; and R3 represents a cyano group or the like,
BICYCLIC -AMINO ACID DERIVATIVE
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Page/Page column 45, (2010/06/17)
It is intended to provide a bicyclic γ-amino acid derivative having excellent activity as an α2δ ligand. The present invention provides a compound represented by the general formula (I): wherein R1, R2, R2', R4, R5, R6, R7, R8, and R8' are a hydrogen atom or the like; and R3 is a hydrogen atom, a halogen atom, a C1-C6 alkyl group, or the like.
