US20190152984A1 - Optically active pyranochromenyl phenol derivative and pharmaceutical composition comprising same - Google Patents

Optically active pyranochromenyl phenol derivative and pharmaceutical composition comprising same Download PDF

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US20190152984A1
US20190152984A1 US16/313,777 US201716313777A US2019152984A1 US 20190152984 A1 US20190152984 A1 US 20190152984A1 US 201716313777 A US201716313777 A US 201716313777A US 2019152984 A1 US2019152984 A1 US 2019152984A1
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compound
enantiomer
optically active
methylpentyl
chemical formula
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Sang Ku Yoo
Jin Wook Chung
In Geun Jo
Jl YOUNG KIM
Jeong Ho IM
Ku Suk KANG
Jin Young Kim
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Glaceum Inc
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Glaceum Inc
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Assigned to GLACEUM, INC. reassignment GLACEUM, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHUNG, JIN WOOK, IM, JEONG HO, JO, IN GEUN, KANG, KU SUK, KIM, JI YOUNG, KIM, JIN YOUNG, YOO, SANG KU
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04—Ortho-condensed systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
    • A61K31/352—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline 
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
    • A61K31/352—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline 
    • A61K31/353—3,4-Dihydrobenzopyrans, e.g. chroman, catechin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/04—Anorexiants; Antiobesity agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B57/00—Separation of optically-active compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B2200/00—Indexing scheme relating to specific properties of organic compounds
    • C07B2200/07—Optical isomers

Definitions

  • the present invention relates to pyranochromenylphenol derivatives having different efficacies depending on the direction of optical activity and a pharmaceutical composition including the same, and to an R-enantiomer having excellent anti-diabetic efficacy and an S-enantiomer having excellent anti-obesity efficacy and a pharmaceutical composition including each of the enantiomers.
  • Obesity which about 30 to 40% of modern people have, is defined as a state in which excessive fat tissues are accumulated in the body, and obesity occurs when excessive energy is accumulated due to imbalance of energy supply in the human body. Due to improvement in the standard of living resulting from the recent economic development, frequent ingestion of instant food products and dietary habits of consumption of large amounts of meat lead to a rapid increase in obesity ratio.
  • diabetes is one of the metabolic disorders which show a phenomenon in which the amount of insulin secreted is insufficient or insulin does not perform normal functions
  • diabetes is characterized by hyperglycemia in which the concentration of glucose in blood is increased, and is defined as a disease in which various syndromes and symptoms are shown due to hyperglycemia, and glucose is released in the urine.
  • HbA1C glycated hemoglobin
  • Non-Patent Document 1 the target and indicator of a therapeutic agent for obesity is to reduce the body weight, and the target and indicator of a therapeutic agent for diabetes is to adjust blood sugar, the targets and therapeutic methods of the two diseases are different from each other in terms of the adjustment of blood sugar.
  • Glabridin is a compound found from Glycyrrhiza glabra extract, and is known to have whitening activity by suppressing the activity of tyrosinase during the synthetic process of melanin, and to help alleviate gastroenteric disorders. Recently, it was confirmed that glabridin is effective for metabolic syndromes including hyperlipidemia, fatty liver, impaired glucose metabolism, diabetes, and obesity, and has anti-inflammatory actions, anti-cancer actions, and the like (Patent Document 1).
  • Non-Patent Document 2 Non-Patent Document 2
  • Patent Document 2 proposes a new direction for treating various metabolic diseases and inflammatory diseases by synthesizing a new pyranochromenylphenol derivative of the following Chemical Formula (I), which is stable under various physical conditions while maintaining or improving the medicinal efficacy of glabridin.
  • R 1 is a hydrogen atom, methyl, methoxy, or a halogen atom
  • R 2 is a hydrogen atom; a substituted or unsubstituted straight or branched C 1 to C 6 alkyl group; a halogen atom; a substituted or unsubstituted straight or branched C 1 to c 6 alkoxy group; or a substituted or unsubstituted straight or branched C 1 to C 4 thioalkyl group;
  • R 3 and R 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group
  • the substituent is a halogen atom, a straight or branched C 1 to c 5 alkyl group, a straight or branched C 1 to c 5 alkoxy group or a straight or branched C 1 to c 3 thioalkyl group.
  • the compound of Chemical Formula (I) has one asymmetric carbon, and the present invention is intended to suggest that in the specific derivatives of these compounds, an R-enantiomer has an excellent effect in treating diabetes and an S-enantiomer has an excellent effect in treating obesity.
  • Patent Document 1 International Publication No. WO 07/058480
  • Patent Document 2 Korean Patent Application Laid-Open No. 10-2015-0075030
  • Non-Patent Document 1 Lean diabetes mellitus: An emerging entity in the era of obesity”, George A., et al., World J Diabetes, 2015 May 15; 6(4): 613-620
  • Non-Patent Document 2 M. Ao, Natural Product Communication 5 (2010), 1907-1912.
  • An aspect of the present invention is to provide an optically active pyranochromenylphenol derivative which has excellent anti-diabetic efficacy and is chemically stable, and a pharmaceutical composition including the same.
  • Another aspect of the present invention is to provide an optically active pyranochromenylphenol derivative which has excellent anti-obesity efficacy and is chemically stable, and a pharmaceutical composition including the same.
  • An aspect of the present invention provides an optically active pyranochromenylphenol compound of the following Chemical Formula (I), a pharmaceutically acceptable salt, or a solvate thereof, and a pharmaceutical composition including the same:
  • R 1 is a straight or branched C 2 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R 3 and R 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • Another aspect of the present invention provides an optically active pyranochromenylphenol compound of the following Chemical Formula (II), a pharmaceutically acceptable salt, or a solvate thereof, and a pharmaceutical composition including the same:
  • R 1 is a straight or branched C 2 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R 3 and R 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • an R-enantiomer is more chemically stable than glabridin and has excellent anti-diabetic efficacy
  • an S-enantiomer has excellent anti-obesity efficacy and is more chemically stable than glabridin.
  • FIG. 1 is a column chromatogram of optically active pyranochromenylphenol compounds 1a and 1b prepared in Example 1 of the present invention.
  • FIG. 2 is a column chromatogram of an R-enantiomer (Compound 1a) of a pyranochromenylphenol compound synthesized from glabridin.
  • FIG. 3 is a graph illustrating the degree to which the body weight of a DIO mouse is increased according to the administration dose and administration period of a racemic compound of Compound 1 prepared in Example 1 of the present invention and Compound 1b, which is an S-enantiomer of Compound 1 prepared in Example 1 of the present invention.
  • FIG. 4 is a graph illustrating the degree to which the body weight of a DIO mouse is increased according to the administration period of Compound 2a, which is an R-enantiomer of Compound 2 prepared in Example 2 of the present invention, and Compound 2b, which is an S-enantiomer of Compound 2 prepared in Example 2 of the present invention.
  • FIG. 5 is a graph illustrating the measurement results of a change in blood sugar of a db/db mouse according to the administration of a racemic compound (racemate) of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, and a racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 6 is a graph illustrating a change in glycated hemoglobin of a db/db mouse according to the administration of a racemic compound of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, and a racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 7 is a graph illustrating the results of a glucose tolerance test of a db/db mouse administered with a racemic compound of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, a racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • R 1 is a straight or branched C 2 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R 3 and R 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • R 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R 2 may be a hydrogen atom
  • R 3 and R 4 may be each methyl.
  • R 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R 2 may be methyl or methoxy
  • R 3 and R 4 may be each methyl.
  • optically active pyranochromenylphenol compound of Chemical Formula (I) may be any one of the following compounds:
  • the optically active pyranochromenylphenol compound of Chemical Formula (I) has an excellent effect of preventing and treating diabetes due to the excellent ability to adjust blood sugar, and simultaneously, is excellent in terms of chemical stability.
  • R 1 is a straight or branched C 2 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R 3 and R 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • R 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R 2 may be a hydrogen atom
  • R 3 and R 4 may be each methyl.
  • R 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R 2 may be methyl or methoxy
  • R 3 and R 4 may be each methyl.
  • optically active pyranochromenylphenol compound of Chemical Formula (II) may be any one of the following compounds:
  • the optically active pyranochromenylphenol compound of Chemical Formula (II) has an excellent effect of preventing and treating obesity by suppressing an increase in body weight and simultaneously, is excellent in terms of chemical stability.
  • the pharmaceutically acceptable salt may be present as an acid addition salt because the compound of Chemical Formula (I) or the compound of Chemical Formula (II) forms a salt with a free acid.
  • the compound of Chemical Formula (I) or the compound of Chemical Formula (II) may form a pharmaceutically acceptable acid addition salt according to the typical method publicly known in the art.
  • An organic acid or an inorganic acid may be used as the free acid, hydrochloric acid, bromic acid, sulfuric acid, or phosphoric acid, and the like may be used as the inorganic acid, and citric acid, acetic acid, lactic acid, tartariac acid, maleic acid, fumaric acid, formic acid, propionic acid, oxalic acid, trifluoroacetic acid, benzoic acid, gluconic acid, methanesulfonic acid, glycolic acid, succinic acid, 4-toluenesulfonic acid, galacturonic acid, embonic acid, glutamic acid or aspartic acid, and the like as the organic acid.
  • the pharmaceutically acceptable salt may be present as an inorganic salt of the compound of Chemical Formula (I) or the compound of Chemical Formula (II).
  • the compound of Chemical Formula (I) or the compound of Chemical Formula (II) may form a pharmaceutically acceptable inorganic salt according to the typical method publicly known in the art.
  • the inorganic salt include salts with aluminum, ammonium, calcium, copper, iron, lithium, magnesium, manganese, potassium, sodium, or zinc, but are not limited thereto, and ammonium, calcium, magnesium, potassium, or sodium salts are preferred.
  • the compound of Chemical Formula (I) or the compound of Chemical Formula (II) may include not only pharmaceutically acceptable salts, but also all the salts and solvates including hydrates, which may be prepared by typical methods.
  • a method of preparing the compound of Chemical Formula (I) or the compound of Chemical Formula (II) is not particularly limited, but the compound of Chemical Formula (I) or the compound of Chemical Formula (II) may be prepared based on the preparation method disclosed in Korean Patent Application Laid-Open No. 10-2015-0075030 (Patent Document 2). That is, it is possible to obtain an R-enantiomer and an S-enantiomer, which are optically active pyranochromenylphenol compounds, by separating a racemic compound of the pyranochromenylphenol compound prepared by the method disclosed in the document by means of a separation method such as column chromatography.
  • a pharmaceutical composition for preventing or treating diabetes including an optically active pyranochromenylphenol compound of the following Chemical Formula (I′), a pharmaceutically acceptable salt, or a solvate thereof:
  • R′ 1 is a straight or branched C 1 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R′ 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R′ 3 and R′ 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • R′ 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R′ 2 may be a hydrogen atom
  • R′ 3 and R′ 4 may be each methyl.
  • R′ 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R′ 2 may be methyl or methoxy
  • R′ 3 and R′ 4 may be each methyl.
  • the optically active pyranochromenylphenol compound of Chemical Formula (I′) may be any one of the following compounds:
  • a pharmaceutical composition for preventing or treating obesity including an optically active pyranochromenylphenol compound of the following Chemical Formula (II′), a pharmaceutically acceptable salt, or a solvate thereof:
  • R′ 1 is a substituted or unsubstituted straight or branched C 1 to C 6 alkyl group unsubstituted or substituted by a straight or branched C 1 to C 5 alkyl group, a halogen atom, or a C 1 to C 5 thioalkyl group;
  • R′ 2 is a hydrogen atom, methyl, ethyl, methoxy, or ethoxy
  • R′ 3 and R′ 4 are each independently a hydrogen atom or a C 1 to C 2 alkyl group.
  • R′ 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R′ 2 may be a hydrogen atom
  • R′ 3 and R′ 4 may be each methyl.
  • R′ 1 may be ethyl, n-propyl, isopropyl, n-butyl, 2-methylpropyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2-ethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, or 2-ethylbutyl
  • R′ 2 may be methyl or methoxy
  • R′ 3 and R′ 4 may be each methyl.
  • optically active pyranochromenylphenol compound of Chemical Formula (II′) may be any one of the following compounds:
  • the pharmaceutical composition may be formulated into a typical pharmaceutical dosage form publicly known in the art.
  • the dosage form includes orally administered preparations, injection preparations, suppositories, percutaneous administration preparations, and nasal administration preparations, but may also be administered by being formulated into any dosage form which is not limited thereto, but may be preferably formulated into a preparation for oral administration and an injection preparation.
  • the dosage form may be prepared by adding a pharmaceutically acceptable carrier required for the preparation of each dosage form.
  • a pharmaceutically acceptable carrier is used to refer to any constituent ingredient excluding a pharmaceutically active ingredient.
  • the “pharmaceutically acceptable” means the properties that do not cause any pharmaceutically undesirable change via interaction with other ingredients present in a composition (for example, interaction between carriers or interaction between the pharmaceutically active ingredient and a carrier). Selection of the pharmaceutically acceptable carrier may vary depending on factors such as the properties and the administration method of a particular dosage form, and the effects of the carrier on solubility and stability of the dosage form.
  • a pharmaceutically acceptable carrier included in a pharmaceutical composition for oral administration may be one selected from a diluent, a binder, a glidant (or a lubricant), a disintegrant, a stabilizer, a solubilizing agent, a sweetening agent, a coloring agent, and a flavoring agent, but is not limited thereto.
  • a diluent refers to any excipient that is added to increase the volume of a composition to formulate the composition into a dosage form with an appropriate size.
  • starch for example, potato starch, corn starch, wheat starch, pregelatinized starch
  • microcrystalline cellulose for example, low-hydration microcrystalline cellulose
  • lactose for example, lactose monohydrate, anhydrous lactose, spray lactose
  • glucose sorbitol, mannitol, sucrose, alginate, alkaline earth metal salts, clay, polyethylene glycol, dicalcium phosphate, anhydrous calcium hydrogenphosphate, or silicon dioxide, and the like either alone or in a mixture thereof, but the diluent is not limited thereto.
  • the excipient may be used within a range of 5 wt % to 50 wt % based on a total weight of the pharmaceutical composition, and may be used, for example, in an amount of 10 wt % to 35 wt % based on the total weight of the pharmaceutical composition for tableting and quality maintenance.
  • a binder refers to a material that is used to impart adhesiveness to materials in a powder form so as to facilitate compression of the materials and improve flowability.
  • the binder may be one or more selected from starch, microcrystalline cellulose, highly dispersible silica, mannitol, lactose, polyethylene glycol, polyvinylpyrrolidone, cellulose derivatives (for example, hydroxypropyl methylcellulose, hydroxypropyl cellulose, or low-substituted hydroxypropyl cellulose), natural gum, synthetic gum, povidone, co-povidone, and gelatin, but is not limited thereto.
  • the binder may be used in an amount of 2 wt % to 15 wt % based on a total weight of the pharmaceutical composition, and may be used, for example, in an amount of 1 wt % to 3 wt % based on the total weight of the pharmaceutical composition for tableting and quality maintenance.
  • a disintegrant refers to a material that is added to facilitate breakup or disintegration of a solid dosage form after being administered to a living body.
  • the disintegrant it is possible to use starch such as sodium starch glycolate, corn starch, potato starch or pregelatinized starch, or modified starch, clay such as bentonite, montmorillonite or veegum, cellulose such as microcrystalline cellulose, hydroxypropyl cellulose or carboxymethyl cellulose, algins such as sodium alginate or alginic acid, a cross-linked cellulose such as croscarmellose sodium, gum such as guar gum or xanthan gum, a cross-linked polymer such as cross-linked polyvinylpyrrolidone (crospovidone), or an effervescent preparation such as sodium bicarbonate or citric acid either alone or in a mixture thereof, but the disintegrant is not limited thereto.
  • starch such as sodium starch glycolate, corn starch, potato starch or pregelatin
  • the disintegrant may be used in an amount of 2 wt % to 15 wt % based on a total weight of the pharmaceutical composition, and may be used, for example, in an amount of 4 wt % to 10 wt % based on the total weight of the pharmaceutical composition for tableting and quality maintenance.
  • a glidant or lubricant refers to a material that performs a function of preventing cohesion of powders to a compressing system and improving flowability of granules.
  • the glidant it is possible to use hard anhydrous silicic acid, talc, stearic acid, a metal salt (magnesium salt, calcium salt, or the like) of stearic acid, sodium lauryl sulfate, hydrogenated vegetable oil, sodium benzoate, sodium stearyl fumarate, glyceryl behenate, glyceryl monostearate, or polyethylene glycol either alone or in a mixture thereof, but the glidant is not limited thereto.
  • the glidant may be used in an amount of 0.1 wt % to 5 wt % based on a total weight of the pharmaceutical composition, and may be used, for example, in an amount of 1 wt % to 3 wt % based on the total weight of the pharmaceutical composition for tableting and quality maintenance.
  • adsorbent it is possible to use hydrated silicon dioxide, hard anhydrous silicic acid, colloidal silicon dioxide, magnesium aluminometasilicate, microcrystalline cellulose, lactose, or a cross-linked polyvinylpyrrolidone either alone or in a mixture thereof, but the adsorbent is not limited thereto.
  • a stabilizer may be one or more selected from antioxidants such as butylhydroxyanisole, butylhydroxytoluene, carotene, retinol, ascorbic acid, tocopherol, tocopherol polyethylene glycol succinic acid or propyl gallate, cyclic compounds of sugars such as cyclodextrin, carboxyethyl cyclodextrin, hydroxypropyl cyclodextrin, sulfobutyl ether or cyclodextrin, and organic acids such as phosphoric acid, lactic acid, acetic acid, citric acid, tartaric acid, succinic acid, maleic acid, fumaric acid, glycolic acid, propionic acid, gluconic acid or glucuronic acid, but is not limited thereto.
  • antioxidants such as butylhydroxyanisole, butylhydroxytoluene, carotene, retinol, ascorbic acid, tocopherol, tocopherol polyethylene
  • a publicly known additive for enhancing the taste by boosting the sense of taste may be included in the pharmaceutical composition.
  • a sweetening agent such as sucralose, sucrose, fructose, erythritol, acesulfame potassium, sugar alcohol, honey, sorbitol, or aspartame may be added to more effectively mask bitterness and maintain the stability and quality of the preparation.
  • an acidifier such as citric acid or sodium citrate, a natural flavor such as Japanese apricot flavor, lemon flavor, pineapple flavor or herbal flavor, or a natural pigment such as natural fruit juice, chlorophyllin, or flavonoid may be used.
  • the pharmaceutical composition for oral administration may be a solid preparation, a semi-solid preparation, or a liquid preparation, for oral administration.
  • the solid preparation for oral administration include tablets, pills, hard or soft capsules, powders, fine granules, granules, powders for reconstitution of solution or suspension, lozenges, wafers, oral strips, dragees and chewable gum, and the like, but are not limited thereto.
  • the liquid preparation for oral administration include solution, suspension, emulsion, syrup, elixir, spirit, aromatic waters, lemonade, extract, precipitant, tincture, and oily medicine.
  • the semi-solid preparation include aerosol, cream, gel and the like, but are not limited thereto.
  • the pharmaceutical composition according to the present invention may be formulated into an injection preparation, and when the composition is formulated into an injection preparation, the composition may include a non-toxic buffer solution, which is isotonic to blood, as a diluent, and examples thereof include a phosphoric acid buffer solution with a pH of 7.4, and the like.
  • the pharmaceutical composition may include other diluents or additives in addition to the buffer solution.
  • a method of preparing a carrier used in the aforementioned preparation and the preparation may be selected and performed as widely known in the art, and the carrier and the preparation may be prepared according to the methods described in, for example, the Remington's Pharmaceutical Science latest edition.
  • the dosage and administration time of the pharmaceutical composition according to the present invention may vary depending on age, sex, status, and body weight of an administration subject, administration route, administration frequency, and type of drug.
  • the daily dosage is about 0.1 mg/kg to about 1,000 mg/kg, preferably mg/kg to 100 mg/kg.
  • the dosage may be appropriately increased and decreased according to a type of disease, progress of disease, administration route, sex, age, body weight and the like.
  • the pharmaceutical composition according to the present invention may be arbitrarily administered several times such that the total daily dosage as an effective ingredient is 0.1 mg/kg to 1,000 mg/kg as a compound based on an adult.
  • the dosage may be appropriately increased and decreased according to a type of disease to be treated or prevented, progress of disease, administration route, sex, age, body weight, health status, and the like.
  • the pharmaceutical composition according to the present invention may contain the compound of Chemical Formula (I′) or the compound of Chemical Formula (II′) according to the present invention in an amount of about 0.0001 wt % to about 10 wt %, preferably 0.001 wt % to 1 wt % based on a total weight of the entire composition.
  • a three-neck round flask was cooled in a dry ice-acetone bath at ⁇ 78° C. while being maintained under a nitrogen atmosphere, and 45 ml of a 1.0 M lithium diisopropyl amide (LDA)-THF solution was added thereto. Thereafter, 8.10 g (30.0 mmol) of (2-benzyloxy-4-ethoxyphenyl)acetic acid methyl ester was dissolved in 150 ml of THF, and then the resulting solution was slowly added to the 1.0 M LDA-THF solution prepared above for 30 minutes, and the resulting mixture was additionally stirred for 30 minutes.
  • LDA lithium diisopropyl amide
  • Example 1-4 The racemic compound obtained in Example 1-4 was separated into each isomer by column chromatography, and the column chromatography conditions are shown in the following Table 1.
  • FIG. 1 is a column chromatogram of optically active pyranochromenylphenol compounds 1a and 1b prepared in Example 1-4.
  • FIG. 2 is a column chromatogram of an R-enantiomer (Compound 1a) of a pyranochromenylphenol compound synthesized from glabridin.
  • 3-(2-hydroxy-4-propoxyphenyl)-8,8-dimethyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene was synthesized in the form of a racemic compound by using the same method as in Example 1, except that in Example 1-1, (2-benzyloxy-4-propoxyphenyl) acetic acid methyl ester was used instead of (2-benzyloxy-4-ethoxyphenyl) acetic acid methyl ester. Daicel Chiral Technologies Co., Ltd.
  • Daicel Chiral Technologies Co., Ltd. was requested for the separation and purification of the synthesized sample, 0.5 g of an R-enantiomer and 0.5 g of an S-enantiomer with >99% ee were provided, and the results of 1 H-NMR, 13 C-NMR, M.P., and optical rotation for the enantiomers are shown as follows.
  • Daicel Chiral Technologies Co., Ltd. was requested for the separation and purification of the synthesized sample, 0.5 g of an R-enantiomer and 0.5 g of an S-enantiomer with >99% ee were provided, and the results of 1 H-NMR and 13 C-NMR for the enantiomers are shown as follows.
  • Daicel Chiral Technologies Co., Ltd. was requested for the separation and purification of the synthesized sample, 0.5 g of an R-enantiomer and 0.5 g of an S-enantiomer with >99% ee were provided, and the results of 1 H-NMR and 13 C-NMR for the enantiomers are shown as follows.
  • Daicel Chiral Technologies Co., Ltd. was requested for the separation and purification of the synthesized sample, 0.5 g of an R-enantiomer and 0.5 g of an S-enantiomer with >99% ee were provided, and the results of 1 H-NMR and 13 C-NMR for the enantiomers are shown as follows.
  • a 5- to 6-week-old female C57BL/6J mouse (Jackson Lab., USA) were purchased and fed with only high-fat fodder for at least 11 weeks to produce a diet induced obesity (DIO) mouse.
  • Samples were exactly taken from a control and the racemic compound, the R-enantiomer (Compound 1a) and the S-enantiomer (Compound 1b) in Example according to the administration dose (0, 20, and 50 mg/kg) and put into Falcon tubes, 3 ml of a 0.5% aqueous methyl cellulose solution was added thereto, and the resulting mixture was gently mixed by means of a vortex mixer.
  • the mixture was homogenized by using a homogenizer (30,000 rpm, Ultra-Turrax® T10 Basic, IKA) for 3 minutes while 1.5 ml of a 0.5% aqueous methyl cellulose solution was added thereto.
  • the sample thus prepared was administered through the oral gavage once daily for 6 weeks by using a disposable plastic syringe. The body weight was measured once a week while the DIO mouse was bred in this manner.
  • Anti-obesity effect (%) ⁇ (Body weight after compound is administered) ⁇ (Body weight before compound is administered) ⁇ /(Body weight before compound is administered)) ⁇ 100 [Equation 1]
  • FIG. 3 is a graph illustrating the degree to which the body weight of the DIO mouse is increased according to the administration dose and administration period of a racemic compound prepared in Example 1, and Compound 1b, which is an S-enantiomer prepared in Example 1.
  • Example 1 As illustrated in FIG. 3 , it could be confirmed that the racemic compound prepared in Example 1 had an effect of suppressing an increase in body weight of the mouse, but Compound 1b being the S-enantiomer of the present invention prepared in Example 1 had a much better anti-obesity effect of suppressing an increase in body weight than that of the racemic compound.
  • FIG. 4 is a graph illustrating the degree to which the body weight of the mouse is increased according to the administration period of Compound 2a being an R-enantiomer and Compound 2b being an S-enantiomer, which are prepared in Example 2 of the present invention.
  • Compound 2b being the S-enantiomer has a better anti-obesity activity than Compound 2a being the R-enantiomer, and the body weight of the mouse administered with the S-enantiomer (Compound 3b) for 6 weeks has an excellent anti-obesity activity to such an extent as to be close to the body weight of the normal mouse.
  • a stock solution was prepared by formulating the solution at a predetermined concentration.
  • a 0.5% aqueous MC solution as an excipient was added to the prepared stock solution, the resulting mixture was gently stirred by means of a vortex mixer, homogenized and prepared by means of a homogenizer (PT-1600E, Kinematica, Switzerland) at 30,000 rpm for 3 minutes, and then a solution was prepared at a final predetermined concentration by performing ultrasonic wave treatment for minutes.
  • the sample thus prepared was administered through the oral gavage once daily for 6 weeks by using a disposable plastic syringe with a zonde for oral administration attached.
  • mice While the C57BLKS/J-db/db mouse was bred, the mouse was fasted for 14 to 16 hours on the 48th day after administration, and then a glucose tolerance test was performed by orally administering glucose (Lot No: SLBM9269V, Sigma-Aldrich, USA) at a dose of 2 g/kg to the mice.
  • glucose Lot No: SLBM9269V, Sigma-Aldrich, USA
  • blood was collected from the caudal vein seven times in total including before the administration of glucose, at 15 minutes after the administration of glucose, at 30 minutes after the administration of glucose, at 60 minutes after the administration of glucose, at 120 minutes after the administration of glucose, at 180 minutes after the administration of glucose, and at 240 minutes after the administration of glucose.
  • blood sugar was measured by using two blood sugar meters (AGM-4000, Allmedicus Inc., Korea), and then an average blood sugar was calculated by using each blood sugar measurement value.
  • the area under the blood concentration-time curve (AUC) for the blood sugar value at each measurement time point was calculated by using a Phoenix WinNonlin program.
  • FIG. 5 is a graph illustrating the measurement results of a change in blood sugar of a db/db mouse according to the administration of the racemic compound (racemate) of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13,the racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 5 is a graph illustrating the measurement results of a change in blood sugar of a db/db mouse according to the administration of the racemic compound (racemate) of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13,the racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 5 is a graph illustrating the measurement results of a change in blood sugar of a db/db mouse according to the administration of the racemic compound (racemate) of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13,the racemic compound
  • FIG. 5 is a view illustrating that the racemic compound of Compound 13, Compound 13a being an R-enantiomer, the racemic compound of Compound 2, and Compound 2a being an R-enantiomer were each administered to the C57BLKS/J-db/db mice at a dose of 150 mg/kg daily for days, by using the same method as in Experimental Example 3, and the difference in concentration of blood sugar in blood with respect to the db/db mouse between before the administration and on the 43th day was measured.
  • the R-enantiomer had excellent ability to adjust blood sugar as compared to the racemic compound.
  • Table 5 is a result of measuring a change in glycated hemoglobin of the db/db mouse according to the administration of the normal group, the negative control, the racemic compound of Compound 13 prepared in Example 9, Compound 13a being the R-enantiomer, the racemic compound of Compound 2 prepared in Example 2, and Compound 2a being the R-enantiomer.
  • FIG. 6 is a graph illustrating a change in glycated hemoglobin of a db/db mouse according to the administration of a racemic compound (racemate) of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, a racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 6 is a view illustrating a value of a change in glycated hemoglobin of the db/db mouse before administering the racemic compound of Compound 13, Compound 13a being an R-enantiomer, the racemic compound of Compound 2, and Compound 2a being an R-enantiomer and 43 days after the administration in Table 5.
  • Example 2 and Example 9 had an effect of adjusting blood sugar, but Compound 2a and Compound 13a being the R-enantiomer of the present invention, which were prepared in Example 2 and Example 9, respectively, had a much better effect of adjusting blood sugar than each racemic compound.
  • FIG. 7 is a graph illustrating the results of a glucose tolerance test of a db/db mouse administered with the racemic compound of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, the racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2.
  • FIG. 7 is a view illustrating blood sugar in blood of a db/db mouse according to the time elapsed after the racemic compound of Compound 13, Compound 13a, which is an R-enantiomer of Compound 13, the racemic compound of Compound 2, and Compound 2a, which is an R-enantiomer of Compound 2 were administered.
  • Example 7 it could be confirmed that the racemic compounds prepared in Example 2 and Example 9 had anti-diabetes efficacy, but Compound 2a and Compound 13a being the R-enantiomer of the present invention, which were prepared in Example 2 and Example 9, respectively, had much better anti-diabetes efficacy than each racemic compound.
  • optically active pyranochromenylphenol derivative according to the present invention had better anti-obesity activity or anti-diabetes activity than the racemic compound, and it could be seen that the respective optical isomers had different activities.

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