Patent classifications
C07C215/10
Method for manufacturing 1,3-dioxane-5-one
The present invention relates to a method for producing a 1,3-dioxan-5-one by a short-step and simple method from raw materials that are procurable easily and inexpensively, using, as a raw material, a 1,3-dioxane that is a mixture containing a 1,3-dioxolane. Provided is a method for producing a 1,3-dioxan-5-one, including using a mixture of a compound represented by the following formula (I) and a compound represented by the following formula (II) as a raw material, the method including a step of oxidizing the mixture under an oxidative esterification condition (step 2): ##STR00001##
wherein, in the formulae (I) and (II), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a monovalent hydrocarbon group, or R.sup.1 and R.sup.2 are bonded to each other to form a divalent hydrocarbon group for constituting a ring structure.
Method for manufacturing 1,3-dioxane-5-one
The present invention relates to a method for producing a 1,3-dioxan-5-one by a short-step and simple method from raw materials that are procurable easily and inexpensively, using, as a raw material, a 1,3-dioxane that is a mixture containing a 1,3-dioxolane. Provided is a method for producing a 1,3-dioxan-5-one, including using a mixture of a compound represented by the following formula (I) and a compound represented by the following formula (II) as a raw material, the method including a step of oxidizing the mixture under an oxidative esterification condition (step 2): ##STR00001##
wherein, in the formulae (I) and (II), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a monovalent hydrocarbon group, or R.sup.1 and R.sup.2 are bonded to each other to form a divalent hydrocarbon group for constituting a ring structure.
Crystalline 2-Amino-2-(Hydroxymethyl)Propane-1,3-Diol Salt of 4-(4-(1-Isopropyl-7-OXO-1,4,6,7-tetrahydrospiro[indazole-5,4'-piperidine]-1'-carbonyl)-6-methoxypryridin-2-YL)benzoic acid
The invention provides the tris salt of 4-(4-(1-isopropyl-7-oxo-1,4,6,7-tetrahydrospiro[indazole-5,4-piperidine]-1-carbonyl)-6-methoxypyridin-2-yl)benzoic acid as a crystalline anhydrous or tri-hydrate; as well as polymorphs, pharmaceutical compositions, dosage forms, and the use thereof in treating diseases, conditions or disorders modulated by the inhibition of an acetyl-CoA carboxylase (ACC) enzyme(s) in an animal.
Method for producing glyceric acid ester
The present invention is to provide a method of producing a glyceric acid ester which is easy for production and high in yield, and in which a pyridine to be used for the reaction is easily reused. Provided is a method of producing a compound represented by the following formula (II), including a step of oxidatively esterifying Compound A represented by the following formula (I) with Compound B selected from an organic nitroxyl radical, an N-hydroxy form thereof, and a salt containing an oxo ammonium cation of them, and an oxidizing agent in the presence of a pyridine having an alkyl substituent, wherein the use amount of Compound B is 0.0001 or more and 0.1 or less in terms of a molar ratio relative to Compound A: ##STR00001##
wherein, in the formulae (I) and (II), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a monovalent hydrocarbon group, or R.sup.1 and R.sup.2 are bonded to each other to form a divalent hydrocarbon group for constituting a ring structure.
Method for producing glyceric acid ester
The present invention is to provide a method of producing a glyceric acid ester which is easy for production and high in yield, and in which a pyridine to be used for the reaction is easily reused. Provided is a method of producing a compound represented by the following formula (II), including a step of oxidatively esterifying Compound A represented by the following formula (I) with Compound B selected from an organic nitroxyl radical, an N-hydroxy form thereof, and a salt containing an oxo ammonium cation of them, and an oxidizing agent in the presence of a pyridine having an alkyl substituent, wherein the use amount of Compound B is 0.0001 or more and 0.1 or less in terms of a molar ratio relative to Compound A: ##STR00001##
wherein, in the formulae (I) and (II), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a monovalent hydrocarbon group, or R.sup.1 and R.sup.2 are bonded to each other to form a divalent hydrocarbon group for constituting a ring structure.
Method for producing glyceric acid ester
The present invention relates to providing a novel glyceric acid ester which can be produced in a high yield and is expected to be applied as a synthetic intermediate, and a method of producing the same. In addition, the present invention relates to providing a novel glyceric acid ester which exhibits a high recovery in a water-washing step after the reaction and a small work load at the time of production, and is expected to be applied as a synthetic intermediate, and a method of producing the same. The present invention provides a method of producing a compound represented by the following formula (II), including a step of oxidatively esterifying a compound represented by the following formula (I): ##STR00001##
wherein, in the formulae (I) and (II), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a monovalent hydrocarbon group, or R.sup.1 and R.sup.2 are bonded to each other to form a divalent hydrocarbon group for constituting a ring structure, provided that the case where R.sup.1 and R.sup.2 are a methyl group at the same time is excluded.
Steroids as agonists for FXR
The invention relates to compounds of formula (I): ##STR00001##
wherein R is ethyl and pharmaceutically acceptable salts, solvates or amino acid conjugates thereof. The compounds of formula (I) are useful as FXR agonists.
Steroids as agonists for FXR
The invention relates to compounds of formula (I): ##STR00001##
wherein R is ethyl and pharmaceutically acceptable salts, solvates or amino acid conjugates thereof. The compounds of formula (I) are useful as FXR agonists.
Catalytic process for preparing N,N-dimethylglucamine from N methylglucamine
The invention relates to a method for preparing aqueous solutions of N,N-dimethylglucamine, characterized by first preparing an adduct of N-methylglucamine and formaldehyde in water at temperatures of between 15 C. and 40 C., and subsequently reacting said adduct to N,N-dimethylglucamine in the presence of a metal catalyst under hydrogen pressure at 20-68 C., followed by secondary hydrogenation at 70-120 bar and 70-110 C. once hydrogen absorption at 20-68 C. is completed.
Catalytic process for preparing N,N-dimethylglucamine from N methylglucamine
The invention relates to a method for preparing aqueous solutions of N,N-dimethylglucamine, characterized by first preparing an adduct of N-methylglucamine and formaldehyde in water at temperatures of between 15 C. and 40 C., and subsequently reacting said adduct to N,N-dimethylglucamine in the presence of a metal catalyst under hydrogen pressure at 20-68 C., followed by secondary hydrogenation at 70-120 bar and 70-110 C. once hydrogen absorption at 20-68 C. is completed.