摘要:
Provided are a process for producing 6-methyl-3-hepten-2-one by cross aldol condensation carried out while each continuously adding to acetone, isovaleraldehyde and an aqueous alkali containing an alkaline substance, and a process for producing phyton or isophytol using the 6-methyl-3-hepten-2-one.
摘要:
The present invention provides conjugated γ -hydroxybutenolide compounds represented by the general formula: wherein R represents, when n is 1, furyl groups, thienyl groups or naphthyl groups, unsubstituted or substituted with alkyl group or alkoxy group; phenyl groups substituted with dialkylamino group, acyl group or pyridinyl group; or wherein m is 0, 1, 2 or 3: when n is 2 or 3, phenyl groups unsubstituted or substituted with alkyl group or alkoxy group; and antiulcer agents comprising an aforementioned conjugated γ -hydroxybutenolide compound as an active ingredient.
摘要:
Use of conjugated γ-oxybutenolide compounds represented by the general formula: wherein R₁, R₂, R₃, R₄ and R₅ are the same or different and represent hydrogen atoms, alkyl groups, hydroxyl groups, alkoxy groups, nitro groups, cyano groups or halogen atoms, for treating and/or preventing ulcer in human beings, is provided.
摘要:
The present invention provides conjugated γ -hydroxybutenolide compounds represented by the general formula: wherein R represents, when n is 1, furyl groups, thienyl groups or naphthyl groups, unsubstituted or substituted with alkyl group or alkoxy group; phenyl groups substituted with dialkylamino group, acyl group or pyridinyl group; or wherein m is 0, 1, 2 or 3: when n is 2 or 3, phenyl groups unsubstituted or substituted with alkyl group or alkoxy group; and antiulcer agents comprising an aforementioned conjugated γ -hydroxybutenolide compound as an active ingredient.
摘要:
Provided are a process for producing 6-methyl-3-hepten-2-one by cross aldol condensation carried out while each continuously adding to acetone, isovaleraldehyde and an aqueous alkali containing an alkaline substance, and a process for producing phyton or isophytol using the 6-methyl-3-hepten-2-one.
摘要:
Provided are a process for producing 6-methyl-3-hepten-2-one by cross aldol condensation carried out while each continuously adding to acetone, isovaleraldehyde and an aqueous alkali containing an alkaline substance; a process for producing a 6-methyl-2-heptanone analogue represented by Formula (1): wherein n is an integer of 0 or 1 or more; which comprises allowing hydrogen, acetone and an aldehyde represented by Formula (2): wherein n is as defined above; X and Y each represents a hydrogen atom or they are coupled together to form a carbon-carbon bond; and Z and W each represents a hydrogen atom or they are coupled together to form a carbon-carbon bond; to react in the presence of an aqueous alkali containing an alkaline substance, and a hydrogenation catalyst; and a process for producing phyton or isophytol using the 6-methyl-3-hepten-2-one or the 6-methyl-2-heptanone analogue.
摘要:
A compound that can be converted, at a low cost and in a simple way, into 2-aryl-1,3-propanediols serving as precursors for synthesizing felbamate acting as an antiepileptic has a structure represented by Formula (1):
wherein Ar represents an aryl group; R¹ represents a hydrogen atom or is R⁴ or R⁵, where R⁴ represents an alkoxy group having 1 to 10 carbon atoms and R⁵ represents a hydroxy group or an acyloxy group having 1 to 10 carbon atoms; and R² and R³ are hydrogen atoms at the same time or R² and R³ together form a group represented by Formula (2):
wherein R⁶ and R⁷ each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or R⁶ and R⁷ together form an oligomethylene group having 2 to 10 carbon atoms.
摘要翻译:可以以低成本和简单的方式转化成用作合成作为抗癫痫药的纤维蛋白酸的前体的2-芳基-1,3-丙二醇的化合物具有由式(1)表示的结构: 其中Ar表示芳基; R 1表示氢原子或R 4或R 5,其中R 4表示具有1〜10个碳原子的烷氧基,R 5表示羟基或具有1个 至10个碳原子; R 2和R 3同时为氢原子或R 2和R 3一起形成由式(2)表示的基团:其中R 6和R 7为 >各自独立地表示氢原子或具有1〜5个碳原子的烷基,或者R 6和R 7一起形成具有2〜10个碳原子的低聚亚乙基。