WO2017003107A1 - 벤조산아미드 화합물의 제조 방법 - Google Patents
벤조산아미드 화합물의 제조 방법 Download PDFInfo
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- WO2017003107A1 WO2017003107A1 PCT/KR2016/005914 KR2016005914W WO2017003107A1 WO 2017003107 A1 WO2017003107 A1 WO 2017003107A1 KR 2016005914 W KR2016005914 W KR 2016005914W WO 2017003107 A1 WO2017003107 A1 WO 2017003107A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/02—Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/08—Preparation of carboxylic acid amides from amides by reaction at nitrogen atoms of carboxamide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/64—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/64—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
- C07C233/67—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
- C07C233/75—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
Definitions
- the present invention relates to a process for the preparation of benzoic acid amide compounds suitable for mass production.
- Korean Patent Publication No. 2013-0015954 is prepared based on the following scheme.
- 5-adamantan-1-yl-N- (2,4-dihydroxybenzyl) -2,4-dimethoxy-benzoic acidamide is (i) 2 in the presence of acetic acid and sulfuric acid catalyst in a dichloromethane solvent.
- This preparation method is that acetic acid and solvent used in the preparation of 5-adamantanyl-2,4-dihydroxy benzoic acid of (i) are consumed 8 times and 2 times more than the reactants, and the reaction time requires at least 5 hours. And the yield is 80 to 85% level.
- step of (iii) is N-hydroxysuccinimide / 1,3-dicyclohexylcarbodiimide (HOSu / DCC) in an expensive water / dioxane solvent.
- SOCl 2 in dichloromethane Or 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide (EDC).
- Coupling agents for coupling such as cyanuric chloride in MeCN, B (OH) 3 in toluene, are used, and solvents are therefore limited. In this case, the yield of the obtained compound is very low, at a level of 30%, and the complex mixture in the final product remains, resulting in low purity.
- the dihydroxy benzylamine used as the reactant in the step (iii) is prepared through the following steps.
- dihydroxy benzaldehyde as a starting material was activated by performing a reaction for 5 hours using sodium carbonate in methanol or ethanol, followed by further reaction by adding hydrochloric acid in methanol or ethanol to prepare an oxime compound. do.
- a dihydroxy benzylamine is prepared by performing a reduction reaction using a high pressure hydrogen gas in the presence of a catalyst carrying Pd in the carbon support.
- the reaction takes a long time of about 5 hours, even if the yield of about 50% level.
- this reaction requires the use of expensive Pd, and hydrogen gas at a pressure of 50 psi is used during the reaction, resulting in a complicated process and increased process costs.
- the benzoic acid amide compound has many limitations in industrial application despite the excellent efficacy related to the whitening, it is necessary to develop a new manufacturing method with improved production efficiency.
- Patent Document 1 Korean Unexamined Patent Publication No. 2013-0015954, "New Benzoic Acid Compound"
- the present invention was conducted to suggest a new method for preparing benzoic acid amide compounds, and by specifying reaction conditions in each process, not only shortening the process time required for the entire preparation but also eliminating the use of expensive materials and catalysts. An economic advantage was obtained, and it was possible to prepare the benzoic acid amide compound in high yield.
- dihydroxy benzylamine used as a reactant was prepared in a high yield of 90% or more in an aqueous solution for a short time without using an organic solvent, which was used for preparing the benzoic acid amide compound.
- Another object of the present invention is to provide a method for preparing a benzylamine compound which can be used as a reactant in the preparation of the benzoic acid amide compound.
- the present invention is represented by the following Scheme 1, performing the amide coupling reaction of the benzylamine compound of formula 2 and the adamantanyl benzo anhydride of formula 3 under a base catalyst; It provides a process for the preparation of benzoic acid amide derivatives:
- T1 preparing a benzaldehyde oxime compound of formula 5 by reacting the benzaldehyde compound of formula 4 with hydroxylamine in a basic aqueous solution;
- the method for producing a benzoic acid amide compound according to the present invention can shorten the overall reaction time to reduce the cost and can be produced in high yield.
- the present invention enables mass production of benzoic acid amide compounds in high yields in a short time.
- the present invention proposes a new method for producing a benzoic acid amide derivative having an excellent whitening effect through the inhibition of melanin, in particular in the field of organic chemistry and cosmetics.
- benzoic acid amide derivative is represented by the following formula (1):
- R 1 to R 4 are the same as or different from each other, and are each independently hydrogen, a hydroxy group, an alkoxy group of C1 to C5, a cycloalkoxy group of C3 to C6, an aryloxy group of C6 to C20, or a haloalkoxy group of C1 to C5 )
- the alkoxy group referred to herein may be linear or branched, and preferably has 1 to 5 carbon atoms. Specific examples include methoxy, ethoxy, n-propoxy, isopropoxy, i-propyloxy, n-butoxy, isobutoxy, tert-butoxy, sec-butoxy, 1,2-dimethylbutoxy, and the like. There are, but are not limited to these
- Cycloalkoxy referred to herein is a ring chain, preferably having 3 to 6 carbon atoms. Specific examples include, but are not limited to, cyclopropoxy, cyclobutoxy, cyclopentoxy or cyclohethoxy.
- the aryloxy group mentioned in this specification has 6-20 carbon atoms.
- Specific examples include phenoxy, p-tolyloxy, m-tolyloxy, 3,5-dimethyl-phenoxy, 2,4,6-trimethylphenoxy, p-tert-butylphenoxy, 3-biphenyloxy, 4 -Biphenyloxy, 1-naphthyloxy, 2-naphthyloxy, 4-methyl-1-naphthyloxy, 5-methyl-2-naphthyloxy, 1-anthryloxy, 2-anthryloxy, 9 -Anthryloxy, 1-phenanthryloxy, 3-phenanthryloxy, 9-phenanthryloxy, and the like, but are not limited thereto.
- haloalkoxy group referred to herein means an alkoxy group substituted with a halogen (-F, -Cl, -Br or -I) group.
- the alkyl group mentioned herein may be linear or branched, and preferably has 1 to 6 carbon atoms. Specific examples include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n-pentyl , Isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, and the like, but are not limited thereto.
- R 1 , R 3 and R 4 are the same as or different from each other and are each selected from the group consisting of hydrogen, hydroxy and C1 to C3 alkoxy.
- the benzoic acid amide derivative of Formula 1 may be selected from: (1) 5-adamantan-1-yl-2,4-dihydroxy-N- [2- (4-hydroxy Oxyphenyl) -ethyl] -benzoic acid amide; (2) 5-adamantan-1-yl-2-hydroxy-N- [2- (4-hydroxyphenyl) -ethyl] -4-methoxy-benzoic acid amide; (3) 5-adamantan-1-yl-N- [2- (4-hydroxyphenyl) -ethyl] -2,4-dimethoxy-benzoic acid amide; (4) 5-adamantan-1-yl-N- (2,4-dihydroxybenzyl) -2,4-dihydroxy-benzoic acid amide; (5) 5-adamantan-1-yl-N- (2,4-dihydroxybenzyl) -2-hydroxy-4-methoxy-benzoic acidamide; (6) 5-adamantan-1-yl-N-N-
- 5-adamantan-1-yl-N- (2,4-dihydroxybenzyl) -2,4-dimethoxy-benzoic acid amide is preferable.
- the benzoic acid amide derivative of Formula 1 has an excellent melanin production inhibitory effect and tyrosinase activity inhibitory effect by improving the absorption by the lipophilic increase of adamantane group. There may be other various effects.
- benzoic acid amide derivative of Chemical Formula 1 is prepared by carrying out an amide coupling reaction of the benzylamine compound of Chemical Formula 2 with adamantanyl benzo anhydride of Chemical Formula 3 under a base catalyst, as shown in Scheme 1 below; do:
- R 1 to R 4 are as mentioned above, and R 5 is an alkyl group of C1 to C6.
- the amide coupling reaction is carried out in a solvent under a base catalyst.
- the base catalyst used at this time is not particularly limited in the present invention, any base catalyst as known in the art can be used. Specifically, any one selected from the group consisting of triethylamine, pyridine, N, N-diisopropylamine, N-methylmorpholine, and mixtures thereof may be used as the base catalyst, and preferably, triethyl Amines are used.
- the solvent may be one selected from the group consisting of dichloromethane, chloroform, 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene and combinations thereof.
- This reaction is carried out at 0 to 40 degrees, more preferably at room temperature, preferably 30 minutes to 4 hours, more preferably 2 to 3 hours.
- the amide coupling reaction of Scheme 3 can be carried out without the use of a separate coupling reagent.
- the reaction is performed using a coupling reagent which is a combination of a specific coupling agent and a solvent. This method not only lowers the final yield about 30%, but also facilitates the separation of the final product obtained.
- the reagents used are expensive, making them unsuitable for mass production processes.
- the coupling reaction of the present invention reacts with adamantanyl benzo anhydride of Formula 3 having a leaving group and the benzylamine compound of Formula 2, which is easy to react, to 30% without using a coupling agent and a specific solvent.
- the benzoic acid amide compound represented by the formula (1) can be prepared in a high yield of 75-95% or more, preferably 75-90% or more.
- the separation of the benzoic acid amide compound in the final product is also easy, and can be processed through a low-cost reagent has the advantage of cost reduction and high effectiveness in mass production process.
- the benzylamine compound of Formula 2 used as a reaction material in Scheme 1 is difficult to manufacture, the price of the raw material itself is expensive, and the stability of the material itself is greatly reduced. In order to apply the compound as a reactant, great care must be taken.
- the compound having a position of R 3 and R 4 instead of 2,4 is 3,4 or 2,5, which is relatively inexpensive and has higher stability than the compound of 2,4.
- the conventional benzylamine compound is prepared by reacting a benzaldehyde derivative in an organic solvent, that is, sodium acetate in an ethanol solvent for a long time of 5 hours or more to prepare an oxime compound, which is then prepared using an expensive Pd catalyst.
- the method is not suitable for mass production in terms of time, cost and yield.
- the present invention proposes a novel preparation method for the benzylamine compound of Formula 2 to solve the problems (ie, stability, price, time and yield) of the compound substituted 2,4 positions.
- the benzylamine compound of formula 2 may be prepared based on Scheme 2:
- T1 preparing a benzaldehyde oxime compound of formula 5 by reacting the benzaldehyde compound of formula 4 with hydroxylamine in a basic aqueous solution;
- Benzaldehyde compound of the formula (4) used as a starting material in the step T1) can be used as long as it satisfies R 3 and R 4 , for example 2,4-dihydroxy benzaldehyde can be used. Such compounds are purchased and used directly or commercially available. These benzaldehyde compounds are not soluble in water, but the reaction can proceed easily under basic conditions.
- the step T1) is carried out in an aqueous solution in the presence of a base.
- the base may be one selected from the group consisting of sodium carbonate, sodium hydrogen carbonate, potassium carbonate and potassium hydrogen carbonate, and preferably sodium carbonate.
- the base content is used so that the molar ratio of 1: 0.01 to 1: 1 with respect to the content of the starting formula (8).
- the reaction is carried out at 0 to 40 degrees, more preferably at room temperature, preferably 30 minutes to 3 hours, preferably 1 to 2 hours. If the crystals precipitate after the reaction, it is possible to obtain a benzaldehyde oxime compound represented by Chemical Formula 5 by filtration.
- the preparation of the benzaldehyde oxime compound is not only significantly shortened to 1 to 2 hours, but also to a high yield of 95% or more, compared to using sodium acetate together with a conventional organic solvent for ethanol for a long time of 5 hours or more.
- a benzaldehyde oxime compound of formula (5) can be obtained.
- the T2) step is carried out in an aqueous solution in the presence of an acid and a reducing agent.
- the acid may be one selected from the group consisting of hydrochloric acid, sulfuric acid, and mixtures thereof, and preferably hydrochloric acid is used.
- the acid content is used to be a molar ratio of 1: 1 to 1:10 relative to the content of the starting formula (5).
- the reducing agent used in step T2) may be zinc, preferably zinc powder, and converts oxime to amine.
- the zinc powder is not only inexpensive but also easy to purchase, thereby reducing the economic cost of mass production of the benzylamine compound.
- zinc powder is commercially available, and used in a content of 1: 1 to 1:10 relative to the compound of Formula 5.
- the reaction is carried out at -4 to 40 degrees, preferably for 30 minutes to 4 hours, more preferably for 2 to 3 hours, the benzylamine compound of formula 2 can be prepared in high yield.
- Pd which is a noble metal catalyst
- a conventional reducing agent In the step T2), Pd, which is a noble metal catalyst, is used as a conventional reducing agent.
- problems such as an increase in production cost and excessive reaction time, and a yield that is not constant up to 50 to 95%.
- a yield that is not constant up to 50 to 95%.
- many by-products are generated and the yield is reduced to 50% or less, or it is difficult to separate into intact hydrochloride or acetate form.
- the reaction time is also greatly reduced, and when applied to a mass production process, a stable yield of about 90 to 95% is achieved. It can be secured.
- the reaction can proceed in an aqueous solution, and the working environment is improved compared to the method using a conventional organic solvent.
- the final benzylamine compound of Formula 2 is prepared in salt state by acid addition, and may be used after washing, or may be applied as a reaction material of Scheme 1 in amine hydrochloride state by removing solvent after simple filtration without further purification.
- adamantanyl benzo anhydride of Chemical Formula 3 reacting with the benzylamine compound of Chemical Formula 2 in Scheme 1 may be prepared based on Scheme 3:
- step S1) reacts the benzoic acid compound of Formula 6 with 1-adamantanol of Formula 7.
- the benzoic acid compound of the formula (6) to be used as a starting material is a benzoic acid derivative in which carboxylic acid is substituted in the benzene ring, and the specific compound may be any compound as long as the compound of the formula (1) satisfies R 1 and R 2 mentioned above.
- the benzoic acid compound of Formula 6 is 2,4-dihydroxy benzoic acid, 2-hydroxy-4-methoxybenzoic acid, 2,4-dimethoxybenzoic acid, 4-hydroxybenzoic acid, 4-methoxybenzoic acid It is possible to purchase and use a manufactured or commercially available product.
- 1-adamantanol of the formula (7) can be used directly purchased or purchased commercially available.
- the benzoic acid compound of Formula 6 and 1-adamantanol of Formula 7 may be reacted in consideration of stoichiometric equivalent ratio, wherein the reaction is used in a molar ratio of 1: 1 to 1: 1.2. If the molar ratio of 1-adamantanol is used in excess, it may react at unwanted positions.
- This reaction is carried out in a solvent in the presence of an acid catalyst.
- the acid catalyst is for increasing the reaction rate, and may be one selected from the group consisting of hydrochloric acid, sulfuric acid, trifluoroacetic acid, acetic acid, and mixtures thereof, and preferably, trifluoroacetic acid and sulfuric acid are mixed.
- the solvent used is dichloromethane.
- the amount of the solvent to be used is not limited so long as it can sufficiently proceed the reaction, but it is used within an optimal range for reducing the cost according to the use of the solvent, and preferably reactants: solvent from 1: 1 to 1:50, preferably 1: 1 to 1:30 by volume ratio.
- the reactant means a combination of a benzoic acid compound and 1-adamantanol.
- reaction temperature and reaction time are controlled to allow the reaction to occur sufficiently and to prepare the compound in high yield, and to shorten the time taken from the starting material to the preparation of the final benzoic acid amide compound.
- the reaction of step S1) is carried out within the reflux temperature of the solvent, preferably 30 minutes to 2 hours, more preferably 1 to 1.5 hours. At this time, when the reaction temperature is low, the reaction rate is slow, and when too high, decomposition may occur.
- the reaction time is a time at which the reaction of Scheme 2 can sufficiently occur, and if the time exceeds the total process time for the production of the overall benzoic acid amide compound, there is a fear that it is carried out within this time.
- step S1 in the case of step S1), in the conventional method, the reaction is performed for a long time of 5 hours or more in the presence of excess sulfuric acid and acetic acid together with an excess of an organic solvent, and there is a problem that the yield is low even for the reaction for such a long time.
- the reaction can proceed, and the reaction time is up to 2 hours.
- the content of the organic solvent is reduced to 1/2 or less, and the content of acid (for example, acetic acid) is reduced to 1/8 or less
- the reaction time is up to 2 hours.
- Reducing the content of the solvent used and the process time has the advantage of increasing the overall productivity and lowering the process cost. In particular, in terms of yield, about 90% or more can be obtained, and the superior effect is obtained in terms of reaction efficiency.
- step S2 the adamantanyl benzoic acid compound of Formula 8 is reacted with the alkyl haloformate of Formula 9 to prepare adamantanyl benzo anhydride of Formula 3.
- the alkyl haloformate of formula 9 is used as a leaving group and the reaction of the adamantanyl benzoic acid compound of formula 8 with the benzylamine compound of formula 2 does not occur directly, the adamantanyl benzoic acid compound of formula 8 is reactive to activate the reaction. Switch to this excellent anhydride.
- the anhydride is in the form of a mixed anhydride, there is an advantage that the reaction proceeds easily with the benzylamine compound of the formula (2).
- Alkyl haloformates for the preparation of anhydrides can be any compound which satisfies R 5 and X mentioned above, preferably ethyl chloroformate, isobutylchloroformate, which can be prepared directly or sold commercially. Purchase and use what is available.
- the adamantanyl benzoic acid derivative of Formula 8 and the alkyl haloformate can be prepared in consideration of stoichiometric equivalent ratio, and are used in a molar ratio of 1: 1 to 1: 1.2. If the molar ratio of alkyl haloformate is used in excess, it may be reacted at an unwanted position.
- This reaction is carried out in a solvent under a base catalyst.
- the base catalyst that can be used may be any one selected from the group consisting of triethylamine, pyridine, N, N-diisopropylamine, N-methylmorpholine, and mixtures thereof, preferably triethylamine is used. .
- the solvent used is preferably dichloromethane.
- the reaction is carried out at low temperature, preferably -4 to 0 degrees, preferably for 10 minutes to 2 hours.
- Method for producing a benzoic acid amide of formula 1 according to the present invention according to Scheme 4 is a compound represented by the formula (2) together with the process conditions required for the reaction of the benzylamine compound of formula (2) and adamantanyl benzo anhydride of formula (3) It is a suitable method for mass production by suggesting new manufacturing conditions.
- the preparation of the compound of Formula 4 proceeds in an aqueous solution, the reaction time is also short within a maximum of 2 hours and can be produced in high yield of 95% or more. It can be seen that this method is an improved method compared to the method produced in low yield even if the reaction in the conventional organic solvent for 5 hours or more.
- the manufacturing method of the benzylamine compound represented by Chemical Formula 2 is significantly improved in process efficiency, such as process time and process cost, compared to the conventional process.
- the compound of formula (8) using the compound of formula (6) as a starting material greatly reduces the content of solvent and acid required for the preparation and shorten the process time up to 2 hours Even if it is, the yield can be as high as 90%.
- reaction of the formula (1) can be easily carried out by passing through the form of the compound of formula (3), and it is possible to prepare the benzoic acid amide compound of formula (1) with a high yield of 75% or more. It can be easily separated.
- This method uses expensive catalysts and reagents, is prepared in a low yield of 30% level, and can be seen to be a very improved method compared to the conventional method which has a problem of separation of the target compound.
- the preparation of the benzoic acid amide derivative of Formula 1 of the present invention as shown in Scheme 4 enables the preparation of the desired compound in a high yield in a short time, and can replace the reagent used in each step with a cheap reagent Not only that, but also its usage can be reduced.
- there is an advantage that the production of the target compound is possible due to high reproducibility and reaction stability.
- the preparation method according to the present invention is preferably applicable to the mass production process of the benzoic acid amide derivative of the formula (1).
- the benzoic acid amide compound of Formula 1 prepared in this way has a whitening effect and can be used in cosmetic compositions, and can be applied to other fields as well.
- the final product included in the external preparation for skin may be utilized in the form of a compound, an isomer thereof, a pharmaceutically acceptable salt, a pro-drug thereof, a hydrate thereof, and a solvate thereof.
- 2,4-Dihydroxybenzaldehyde oxime (5.5 g) prepared above was added to a new flask, 6M hydrochloric acid solution (48 ml) was added thereto, and zinc powder (9.42 g) was slowly added dropwise while stirring under ice cooling. Initially, a small amount was added and stirred to maintain the temperature inside the reaction vessel below 40 degrees. After all the zinc was added, the mixture was stirred at room temperature for 2 hours to confirm that the starting material disappeared. Excess zinc was filtered off and the filtrate was concentrated under reduced pressure to remove water to obtain 2,4-dihydroxybenzylamine as hydrochloride.
- the prepared 2,4-dihydroxy benzylamine (5.5 g, 90% yield) was obtained in the form of hydrochloride in the solid state and used for subsequent reaction without further purification.
- the title compound was prepared based on the following reaction.
- 5-adamantan-1-yl-2,4-dimethoxybenzoic acid 9.1 g prepared in (1) above in the form of a hybrid anhydride, it was dissolved in dichloromethane (50 mL) and triethylamine (4.8) under ice-cooling. ml) was added and ethylchloroformate (3.3 mL) was added dropwise and stirred for 30 minutes. The amine hydrochloride produced in the later use was removed by filtration and only the solution was used.
- the title compound was prepared in the same manner as in Example 1, except that 2,4-dihydroxybenzoic acid was used instead of 2,4-dimethoxybenzoic acid as a starting material.
- the title compound was prepared in the same manner as in Example 1, except that 2-hydroxy-4-methoxybenzoic acid was used instead of 2,4-dimethoxybenzoic acid as a starting material.
- Example 1 and Comparative Example 1 to measure the reaction time and the yield required for the preparation of the compound are shown in Table 1 below. At this time, the reaction time was calculated only for the time required for the reaction, except for the time such as post-treatment.
- the method for producing benzoic acid amide according to the present invention shortens the overall process time and enables the production of a high yield of the compound, which is preferably applicable to mass production processes.
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Abstract
Description
비교예 1 | 실시예 1 | |
총 반응시간(hr) | 24시간 | 4.5시간 |
수율(%) | 45% | 75% |
Claims (11)
- 제1항에 있어서,상기 R1 및 R2는 메톡시기이고, R3 및 R4는 히드록시기인 것을 특징으로 하는 벤조산아미드 유도체의 제조방법.
- 제1항에 있어서,상기 염기 촉매는 트리에틸아민, 피리딘, N,N-디이소프로필아민, N-메틸몰포린 및 이들의 혼합물로 이루어지는 군에서 선택되는 어느 하나인 것을 특징으로 하는 벤조산아미드 유도체의 제조방법.
- 제1항에 있어서,상기 화학식 2의 벤질아민 화합물은 고형의 염산염 형태로 사용하는 것을 특징으로 하는 벤조산아미드 유도체의 제조방법.
- 제1항에 있어서,상기 화학식 3의 아다만타닐 벤조무수물은 혼합 무수물(mixed anhydride) 형태인 것을 특징으로 하는 벤조산아미드 유도체의 제조방법.
- 제1항에 있어서,상기 아마이드 커플링 반응은 디클로로메탄, 클로로포름, 1,2-디클로로에탄, 1,1,2-트리클로로에탄, 클로로벤젠, 및 이들의 혼합 용매로 이루어진 군에서 선택된 1종의 용매 존재 하에 수행하는 것을 특징으로 하는 벤조산아미드 유도체의 제조방법.
- 하기 반응식 2로 표시되며,T1) 염기성 수용액 내에서 화학식 4의 벤즈알데히드 화합물과 하이드록실아민을 반응시켜 화학식 5의 벤즈알데히드 옥심 화합물을 제조하는 단계; 및T2) 산성 수용액 내에서 상기 화학식 5의 벤즈알데히드 옥심 화합물을 환원제로 처리하는 단계;를 포함하여 제조하는 것을 특징으로 하는 화학식 2로 표시되는 벤질아민 화합물의 제조방법:[반응식 2](상기 반응식 2에서, R3 및 R4는 서로 같거나 다르며, 각각 독립적으로 수소, 히드록시기, C1 내지 C5의 알콕시기, C3 내지 C6의 사이클로알콕시기, C6 내지 C20의 아릴옥시기, 또는 C1 내지 C5의 할로알콕시기이다)
- 제7항에 있어서,상기 T1) 단계의 염기성 수용액은 탄산나트륨, 탄산수소나트륨, 탄산칼륨, 탄산수소칼륨 및 이들의 혼합물로 이루어지는 군에서 선택된 1종의 염기를 포함하는 수용액인 것을 특징으로 하는 벤질아민 화합물의 제조방법.
- 제7항에 있어서,상기 T2) 단계의 환원제는 아연인 것을 특징으로 하는 벤질아민 화합물의 제조방법.
- 제7항에 있어서,상기 T2) 단계의 산성 수용액은 염산을 포함하는 수용액인 것을 특징으로 하는 벤질아민 화합물의 제조방법.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070046577A (ko) * | 2005-10-31 | 2007-05-03 | (주)아모레퍼시픽 | 젠티식산 유도체 화합물과 그 제조방법 및 이를 함유하는미백화장료 조성물 |
KR20130004616A (ko) * | 2011-06-30 | 2013-01-14 | (주)아모레퍼시픽 | 신규한 코지산 유도체, 이의 제조 방법 및 이를 유효성분으로 함유하는 피부 미백용 조성물 |
KR20130015954A (ko) * | 2011-08-05 | 2013-02-14 | (주)아모레퍼시픽 | 신규 벤조산아미드 화합물 |
-
2016
- 2016-06-03 WO PCT/KR2016/005914 patent/WO2017003107A1/ko active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070046577A (ko) * | 2005-10-31 | 2007-05-03 | (주)아모레퍼시픽 | 젠티식산 유도체 화합물과 그 제조방법 및 이를 함유하는미백화장료 조성물 |
KR20130004616A (ko) * | 2011-06-30 | 2013-01-14 | (주)아모레퍼시픽 | 신규한 코지산 유도체, 이의 제조 방법 및 이를 유효성분으로 함유하는 피부 미백용 조성물 |
KR20130015954A (ko) * | 2011-08-05 | 2013-02-14 | (주)아모레퍼시픽 | 신규 벤조산아미드 화합물 |
Non-Patent Citations (2)
Title |
---|
BAEK, HEUNG SOO: "Adamantyl N-benzylbenz Amide: New Series of Depigmentation Agents with Tyrosinase Inhibitory Activity", BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, vol. 22, 2012, pages 2110 - 2113, XP028459466 * |
CHAPSAL, BRUNO D.: "Catalytic Asymmetric Transformations with Fine-tunable Biphenol-based Monodentate Ligands", TETRAHEDRON : ASYMMETRY, vol. 17, 2006, pages 642 - 657, XP055129191 * |
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