WO2008017491A1 - Ligustilide derivatives for the treatment of disorders of the central nervous system - Google Patents
Ligustilide derivatives for the treatment of disorders of the central nervous system Download PDFInfo
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- WO2008017491A1 WO2008017491A1 PCT/EP2007/007086 EP2007007086W WO2008017491A1 WO 2008017491 A1 WO2008017491 A1 WO 2008017491A1 EP 2007007086 W EP2007007086 W EP 2007007086W WO 2008017491 A1 WO2008017491 A1 WO 2008017491A1
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- senkyunolide
- compound
- hydroxy
- stress
- animals
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- 0 C*(CC1C(*)(*)O2)C[C@]1(C)C2=O Chemical compound C*(CC1C(*)(*)O2)C[C@]1(C)C2=O 0.000 description 1
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- 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
- A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
- A61K31/343—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/20—Hypnotics; Sedatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/22—Anxiolytics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/24—Antidepressants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention refers to organic compounds of the general formula I as defined be- 5 low for use in the treatment of disorders connected to impaired neurotransmission, as well as to dietary and pharmaceutical compositions containing such compounds, and to their uses.
- impaired neurotransmission e.g. low neurotransmitter levels
- GAD generalized anxiety disorders
- Neurotransmitters drugs and brain function
- Increase in neurotransmission is achieved by increasing the concentration of the neurotransmitter in the syn-
- aptic cleft thus making it available for increased or prolonged neurotransmission through inhibition of re-uptake into the pre-synaptic nerve end, or by preventing neurotransmitter catabolism by inhibition of degrading enzymes such as monoaminooxidase A and B.
- Tricyclic antidepressant compounds such as imipramine, amitriptyline, and 25 clomipramine e.g. inhibit the re-uptake of serotonin and noradrenaline. They are widely regarded as among the most effective antidepressants available, but they have a number of disadvantages because they interact with a number of brain receptors, e.g. with cholinergic receptors. Most importantly, TCAs are not safe when taken in overdose, frequently showing acute cardiotoxicity. 30
- SSRIs selective serotonin reuptake inhibitors
- SSRIs selective serotonin reuptake inhibitors
- fluoxetine paroxetine, sertraline, citalopram
- fluvoxamine that block the serotonin transporter (SERT)
- SERT serotonin transporter
- TCAs high affinity sodium chloride-dependent neuro- transmitter transporter that terminates serotonergic neurotransmission by uptake of serotonin.
- TCAs serotonin transporter
- These medications are typically started at low dosages and may be increased until they reach a therapeutic level.
- a common side effect is nausea.
- Other possible side effects include decreased appetite, dry mouth, sweating, infection, constipation, yawn, tremor, sleepiness and sexual dysfunction.
- MAOs monoaminooxidases
- modulators of neurotransmission exert pleiotropic effects on mental and cognitive functions. These functions differ clearly from those effects reported for food/plant constituents with antioxidant function which exert a neuroprotective effect via reduction of oxidative stress.
- GAD generalized anxiety syndrome
- GAD patients suffer from subsyndromal depression and contribute to the highest overall direct and indirect health economic burden of all anxiety and depressive disorder. Despite high GAD incidence, few sufferers are diagnosed, prescribed medi- cation, or receive psychiatric referral-simple diagnostic tools to aid patient recognition and monitoring are needed. Regardless of specific diagnosis, physicians require effective GAD-symptom treatments. SSRIs such as paroxetine are effective for GAD treatment [Stocchi et al. 2003 J CHn Psych, 63(3):250-258].
- mood is influenced by neurotransmitter biosynthesis, neurotransmitter processing, neurotransmitter storage, neurotransmitter release, neurotransmitter re-uptake and neuro- transmitter receptor binding, especially wherein serotonin is the neurotransmitter.
- Imbalanced mood may manifest itself in animals including humans as tension, sadness, unhappi- ness/discontent, irritability and dysphoria, and/or as a disturbance of behaviour, emotions and thinking processes.
- treatment with dietary supplementation to alleviate and prevent symptoms associated with the sleep disorders, as well as to maintain the normal circadian rhythm (an animal or human is used to), and/or to alleviate and prevent symptoms associated with a disturbed circadian rhythm, such as impairment of cognitive function and memory, mental and physical fatigue, dreaminess, is warranted to improve the overall quality of life and benefiting vital energy of a person in need thereof.
- compounds of the general formula I as defined below are effective serotonin and noradrenaline re-uptake inhibitors, and inhibitiors of monami- nooxidase A and B.
- they have similar properties as currently commercialized antidepressants drugs like SSRIs (selective serotonin-reuptake inhibitiors), SNRIs (selective noradrenaline-reuptake inhibitiors) and tricyclic amines)
- the present invention refers especially to the use of the compounds of the general formula I as mood balancing agents and stress relievers, for mental well-being as well as to helping to reduce the risk of mood swings, for helping to retain a positive mood and for supporting cognitive wellness, for normalizing the sleep pattern (also called sleep architecture), shorten the time to sleep onset, in general for helping to promote and maintain a good sleep quality, as well as (dietary) compositions and fortified food/feed/beverages containing them, and their uses.
- sleep pattern also called sleep architecture
- These compounds are preferably used for normalizing and maintaining the circadian rhythm (biorhythm) in humans, for alleviating and/or preventing the symptoms as- sociated with a disturbed circadian rhythm (biorhythm) in humans.
- the compounds of this invention have veternary uses, including: preventing stress in farm animals in mass production lifestock husbandry and/or during transport to slaughter; preventing quality loss of meat of the farm animals during transport to slaugh- ter; for preventing feather picking and cannibalism amongst poultry; and for reduction of stress in pets.
- R 1 is hydrogen or hydroxy; with the proviso that R 2 is butyl or butyryl if R 1 is hydroxy, and R 2 is butyl if R 1 is hydrogen; or
- R 1 and R 2 taken together are 1 -propylidene or 1-butylidene optionally substituted by hydroxy, methyl, or 3-( ⁇ , ⁇ -dimethylacryloyloxy); the dotted line is an optional bond;
- X is an optionally substituted aliphatic C4- residue selected from the group consisting of X1, X2, X3, X4, and X5;
- X is Xl, X4 or X5 if the dotted line signifies a bond in formula (I) above; R 3 and R 4 are, independently from each other, hydrogen or hydroxy; and R 5 is hydroxy or butyryl.
- Xl can be substituted by one (if one of R 3 and R4 is hydroxy ) or two hydroxy groups (if R 3 and R 4 are both hydroxy ).
- the compounds of the general formula I as described above act as serotonin re-uptake in- hibitors, thus prolonging the time the serotonin is available for neurotransmission. This leads to a mood balancing and stress relieving effect.
- the compounds as used for the present invention are selected from the group of phthalide derivatives, which refer to substituted lactones of 2-hydroxymethylbenzoic acid according to IUPAC Rule C-473. This class of compounds is based on l(3H)-isobenzofuranone C 8 H 6 O 2 .
- Preferred compounds used for the purpose of the present invention are selected from the group consisting of (E)-senkyunolide E; senkyunolide C; senkyunolide B; 3-butyl-4,5,6,7- tetrahydro-3,6,7-trihydroxy-l(3H)-isobenzofuranone; 3-butyl-l(3H)-isobenzofuranone; 3- butylphthalide; 3-butylidenephthalide; 3-propylidenephthalide; chuangxinol; ligustilidiol; senkyunolide F; 3-hydroxy-senkyunolide A; angeloylsenkyunolide F; senkyunolide M; 3- hydroxy-8-oxo-senkyunolide A; ligustilide; 6,7-dihydro-(6S,7R)-dihydroxyligustilide; 3a,4-dihydro-3-(3-methylbutylidene
- Table 1 List of preferred compounds used according to the present invention
- the most preferably used compounds are selected from the group consisting of ligustilide, 3-butylphthalide, 3-butylidenephthalide, 3-propylidenephthalide, sedanolide, senkyunolide A, senkyunolide B and senkyunolide C, as well as mixtures thereof.
- the invention relates to a compound of the general formula I with the definitions of X and R 1 - R 5 as given above, preferably to a compound selected from the group consisting of (E)-senkyunolide E; senkyunolide C; senkyunolide B; 3-butyl-4,5,6,7- tetrahydro-3,6,7-trihydroxy-l(3H)-isobenzofuranone; 3-butyl-l(3H)-isobenzofuranone; 3- butylphthalide; 3-butylidenephthalide; 3-propylidenephthalide; chuangxinol; ligustilidiol; senkyunolide F; 3-hydroxy-senkyunolide A; angeloylsenkyunolide F; senkyunolide M; 3- hydroxy-8-oxo-senkyunolide A; ligustilide; 6,7-dihydro-(6S,7R)
- the compound isselected from the group consisting of ligustilide, 3- butylphthalide, 3-butylidenphthalide, 3-propylidene-phthalide, sedanolide, senkyunolide A, senkyunolide B and senkyunolide C, as well as to a mixture thereof, for use in the treatment of a disorder connected to impaired or reduced neurotransmission or for use in the manufacture of compositions useful for the treatment of a disorder connected to impaired neurotransmission.
- the invention relates to the use of a compound of the general formula I as defined above, preferably use of a compound listed in Table 1 , more preferably to the use of ligustilide, 3-butylphthalide, 3-butylidenephthalide, 3-propylidenephthalide, sedanolide, senkyunolide A, senkyunolide B and senkyunolide C, as well as mixtures thereof, as mood balancing agent and/or stress reliever in animals including humans.
- the animals are especially humans, pet or companion animals (preferably cats and dogs), farm animals (preferably poultry, cattle, sheep, goat and swine) and animals for the fur industry such as minks, foxes and hares, as well as animals used for aquaculture such as fish like salmon and trout as well as crustaceous like shrimp.
- farm animals preferably poultry, cattle, sheep, goat and swine
- animals for the fur industry such as minks, foxes and hares, as well as animals used for aquaculture such as fish like salmon and trout as well as crustaceous like shrimp.
- the compounds of this invention are used for preventing stress in pet and farm animals, in mass production lifestock husbandry, during transport to slaughter and/or for preventing losses in milk or egg production, and quality loss of meat of said farm animals during transport to slaughter.
- the compounds of this invention are used for preventing feather picking and cannibalism amongst poultry and/or for preventing losses of meat quality and egg production accompanied by it and in general.
- the compounds of this invention are used for maintaining the circadian rhythm in humans, for alleviating and/or for preventing the symptoms associated with a disturbed circadian rhythm in humans.
- mood is stabilized and an emotional balance is achieved to cope with daily life stress and to maintain physical and psychological performance.
- the symptoms associated with a disturbed circadian rhythm such as impairment of cognitive function and memory, and mental and physical fatigue are alleviated and/or prevented so that the overall quality of life is improved and the persons to whom such compounds are administered benefit from maintaining vital energy.
- deregulation of circadian rhythms induced by long-term flights (jet-lag) as well as by shift-working and the symptoms associated with it are allevi- ated and/or prevented.
- imbalanced mood which may manifest as tension, sadness, unhappiness/discontent and irritability, dysphoria, and/or as a disturbance of behaviour, emotions and thinking processes, is prevented by administering the compounds of the general formula I as defined aboveto animals including humans.
- the invention relates to the use of a compound of the general formula I as defined above for the treatment of a disorder connected to impaired or reduced neurotransmission or for the manufacture of a composition for the treatment of a disorder con- nected to impaired neurotransmission, particularly for the manufacture of an antidepressant, a reducer of obsessive-compulsive behaviour, a relaxant, a sleep improver and/or a insomnia alleviator, as well as for use as mood balancing agent, as mood/vitality improver, as stress reliever, as condition improver and/or as reducer of tension, sadness, unhappiness/discontent, irritability and dysphoria.
- the invention relates to compositions, particularly to dietary compositions containing at least one compound of the general formula I as defined above as well as to pharmaceutical compositions containing at least one compound of the general formula I as defined above and a conventional pharmaceutical carrier for use in the treatment of disorders connected to impaired neurotransmission.
- the invention relates to a method for the treatment of a disorder connected to impaired neurotransmission in animals including humans, said method comprising (a) preparing a composition comprising a compound of formula I and (b) administering an effective dose of said composition to animals including humans which are in need thereof.
- the invention relates to a method balancing the mood and/or relieving the stress in animals including humans, said method comprising administering an effective dose of a compound of the general formula I as defined above and with to animals including humans which are in need thereof.
- Animals in the context of the present invention include humans and encompass mammals, fish and birds.
- Preferred “animals” are humans, pet or companion animals, farm animals, animals for the fur industry and in aquaculture. More preferred “animals” are humans, pets and farm animals.
- pet animals examples are dogs, cats, birds, aquarium fish, guinea pigs, (jack) rabbits, hares and ferrets.
- farm animals are fish (such as e.g. salmon and trout), aqua culture animals (such as e.g. shrimp), pigs, horses, ruminants (cattle, sheep and goat) and poultry (such as e.g. geese, chicken, broiler, laying hens, quails, ducks, turkeys).
- fish such as e.g. salmon and trout
- aqua culture animals such as e.g. shrimp
- pigs such as e.g. shrimp
- horses ruminants (cattle, sheep and goat)
- poultry such as e.g. geese, chicken, broiler, laying hens, quails, ducks, turkeys.
- Examples of animals for the fur industry are minks, foxes and hares.
- a compound of the general formula I as defined above is administered for preventing stress in farm animals , in mass production lifestock husbandry, during transport to slaughter and/or for preventing quality loss of meat of said farm animals during transport to slaughter.
- Said farm animals are especially poultry (such as e.g. geese, broiler, laying hens, quails, ducks, chicken, turkeys), cattle, sheep, goat and swine.
- the compound of the general formula I as defined above is administered to pet animals for reduction of stress, tension and aggressiveness and compulsive behavior under stressfully conditions such as separation, change or loss of the owner, during holiday separation and husbandry in so called "animal hotels", husbandry in animal shelter stations, and other conditions of dense hus- bandry and breeding.
- the compound of the general formula I as defined above is administered to poultry (such as e.g. geese, broiler, laying hens, quails, ducks, chicken, turkeys) for preventing feather picking and cannibalism resulting e.g. in losses of meat quality and egg production.
- poultry such as e.g. geese, broiler, laying hens, quails, ducks, chicken, turkeys
- the compound of the general formula I as defined is administered to humans for maintaining the circadian rhythm in humans, for alleviating and/or preventing the symptoms associated with a disturbed circadian rhythm in humans.
- compound of the general formula I also encompasses any material or extract of a plant containing such a compound covered by the general formula I, preferably in an amount of at least 50 weight-%, more preferably in an amount of from 70 to 90 weight-%, most preferably in an amount of at least 90 weight-%, based on the total weight of the plant material or extract.
- material of a plant and “plant material” used in the context of the present invention mean any part of a plant.
- the compounds according to formula I as defined above and which are used according to the present invention may be isolated by methods known in the art [see, e.g. Beck J.et al 1995 Natural Products 58(7): 1047-1055] from various plants such as Angelica glauca, Angelica acutiloba, Angelica sinensis, Angelicae dahuricae, Apium graveolens, Ligusti- cum acutilobum, Ligusticum officinale, Ligusticum sinense, Ligusticum wallichii, Ligusti- cum chuanxiong, Cnidium officinale, Rhizoma chuanxiong, Pleurospermum hookeri, Trachyspermum roxburghianum, Meum athamanticum, Lomatium torreyi, Scutellaria bai- calensis, Opopanax chironium, Cenolophium denudatum, Coriandrum sativuum, and Si- laum silaus.
- any material, extract or oleoresin of these plants or any other plant material or extract containing a specific compound covered by formula I is also encompassed by the expression "compound of the formula I".
- the compounds used herein may also be of synthetic origin.
- compound of the formula I means both "natural” (isolated) and “synthetic” (manufactured) compound of the formula I. In this case both cis (Z) and trans (E)-isomers are included.
- 3-n-Butylphthalide, senkyunolides A, B and C and sedanolide may be obtained by distillation and fractionation of Apium graveolens seed extract, or by supercritical fluid CO2 extraction, and if desired, followed by a distillation.
- Supercritical fluid extract/distillation is a preferred method for extracting Ligusticum.
- Extracts of whole plants or parts thereof, e.g., of leaves, roots or seed are commercially available or can be obtained in accordance with methods well-known in the art using solvents like methanol, ethanol, ethyl acetate, diethyl ether, n-hexane, methyle- nechloride or, preferably, with supercritical fluids like carbon dioxide (pure or in mixture with other solvents such as alcohols) or dinitrogen oxide. From the extracts single compounds or more or less pure mixtures can be obtained by distillation and fractionation, preferably under reduced pressure. Alternatively, pure compounds of formula I can be synthesized by methods well-known in the art and mixed together in any desired quantities.
- the compounds of the general formula I are administered in form of a ligusticum distillate, or as a mixture with ligusticum distillate as one component, which contains the following five phthalides: 3-n-butylphthalide, 3 -n-butylidenphthalide, senkyunolide A, sedanolide and Z-ligustilide.
- this distillate/mixture contains at least 40 weight-%, preferably at least 55 %, more preferably at least 65 %, most preferably at least 85 weight-% of these 5 phthalides together, based on the total weight of the distillate/mixture.
- the amount of Z-ligustilide is: in an amount in the range of from at least 30 to 60 weight-%; more preferably at least 40 weight-%, even more preferably at least 50 weight-%; preferably the amount of senkyunolide A is: in an amount in the range of from 10-40 weight-%; preferably at least 10 weight-%, more preferably at least 20 weight-%, and even more preferably at least 30 weight %; preferably the amount of sedanolide is: in a range of from about 0.1 to 8 weight % preferably at least 0.5% weight % more preferably at least 1.0 weight-%, even more preferably at least 3 weight-%, and preferably the amount of 3-n-butylphthalide is in a range of from about 0.1 at least 5 weight %, preferably at least 0.5 weight-%, more preferably at least 2% weight-%, even more preferably at least 3 weight-%, all amounts based on the total weight of the distillate/mixture.
- the dietary compositions according to the present invention may further contain protective hydrocolloids, binders, film forming agents, encapsulating agents/materials, wall/shell materials, matrix compounds, coatings, emulsifiers, surface active agents, solubilizing agents (oils, fats, waxes, lecithins etc.), adsorbents, carriers, fillers, co-compounds, dispersing agents, wetting agents, processing aids (solvents), flowing agents, taste masking agents, weighting agents, jellyfying agents, gel forming agents, antioxidants and antimicrobials.
- protective hydrocolloids binders, film forming agents, encapsulating agents/materials, wall/shell materials, matrix compounds, coatings, emulsifiers, surface active agents, solubilizing agents (oils, fats, waxes, lecithins etc.), adsorbents, carriers, fillers, co-compounds, dispersing agents, wetting agents, processing aids (solvents),
- dietary compositions comprises any type of nutrition such as (fortified) food/feed and beverages including also clinical nutrition, and also dietary supplements.
- the pharmaceutical compositions according to the present invention may further contain conventional pharmaceutical additives and adjuvants, excipients or diluents, including, but not limited to, water, gelatin of any origin, vegetable gums, ligninsulfonate, talc, sugars, starch, gum arabic, vegetable oils, polyalkylene glycols, flavoring agents, preservatives, stabilizers, emulsifying agents, buffers, lubricants, colorants, wetting agents, fillers, and the like.
- conventional pharmaceutical additives and adjuvants, excipients or diluents including, but not limited to, water, gelatin of any origin, vegetable gums, ligninsulfonate, talc, sugars, starch, gum arabic, vegetable oils, polyalkylene glycols, flavoring agents, preservatives, stabilizers, emulsifying agents, buffers, lubricants, colorants, wetting agents, fillers, and the like.
- the carrier material can be organic or inorganic inert carrier material suitable for oral/parenteral/inj ectable administration.
- the dietary and pharmaceutical compositions according to the present invention may be in any galenic form that is suitable for administration to the animal body including the human body, especially in any form that is conventional for oral administration, e.g. in solid form such as (additives/supplements for) food or feed, food or feed premix, fortified food or feed, tablets, pills, granules, dragees, capsules, and effervescent formulations such as powders and tablets, or in liquid form such as solutions, emulsions or suspensions as e.g. beverages, pastes and oily suspensions.
- the pastes may be filled into hard or soft shell capsules. Examples for other application forms are forms for transdermal, parenteral or in- jectable administration.
- the dietary and pharmaceutical compositions may be in the form of controlled (delayed) release formulations.
- Examples of food are dairy products such as yoghurts.
- Examples for fortified food are cereal bars, bakery items such as cakes and cookies.
- Beverages encompass non-alcoholic and alcoholic drinks as well as liquid preparations to be added to drinking water and liquid food.
- Non-alcoholic drinks are e.g. soft drinks, sport drinks, fruit juices, lemonades, near-water drinks (i.e. water based drinks with a low calo- rie content), teas and milk based drinks.
- Liquid food are e.g. soups and dairy products (e.g. muesli drinks).
- the compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above can be used for the manufacture of medicaments for the treatment of a disorder connected to impaired or reduced neurotransmission.
- treatment also encompasses co-treatment as well as prevention.
- prevention can be the prevention of the first occurrence (primary prevention) or the prevention of a reoccurence (secondary prevention).
- the present invention is also directed to a method for the prevention of a disorder connected to impaired neurotransmission in animals including humans, said method comprising administering an effective dose of a compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above to animals including hu- mans which are in need thereof.
- an effective dose of a compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above may especially be used for maintaining the mental well-being, for maintaining a balanced cognitive function, for helping to reduce the risk of mood swings, for helping to retain a posi- tive mood and for supporting cognitive wellness, for normalizing the sleep pattern (also called sleep architecture), shorten the time to sleep onset, in general for helping to promote and maintain a good sleep quality, normalize the circadian rhythm (biorhythm) of one person, meaning restoring the biorhythm of a person to his usual, healthy one.
- sleep pattern also called sleep architecture
- disorders also encompasses diseases.
- compositions for the treatment of disorders connected to impaired neurotransmission encompass their use as antidepressants, mood/vitality improvers, stress relievers, condition improvers, anxiety reducers and obsessive-compulsive behaviour reducers, relaxants, sleep improvers and/or insomnia alleviators, normalizer of circadian rhythm (biorhythm). They all may improve, enhance and support the physiological neurotransmission, especially in the central nervous system, and therefore may alleviate mental malfunction.
- Antidepressants are medicaments for treating mental, behavioural and emotional/affective, neurotic, neurodegenerative, eating and stress related disorders such as e.g. unipolar depression, bipolar depression, acute depression, chronic depression, subchronic depression, dysthymia, postpartum depression, premenstrual dysphoria/syndrom (PMS), climacteric depressive symptoms, aggression, attention deficit disorders (ADS), social anxiety disor- ders, seasonal affective disorders, anxiety (disorders) such as generalized anxiety disorder (GAD), fibromyalgia syndrome, chronic fatigue, sleep disorders (insomnia), post-traumatic stress disorders, panic disorders, obsessive compulsive disorders, restless leg syndrome, nervousness, migraine/primary headaches and pain in general, emesis, bulimia, anorexia nervosa, binge eating disorder, gastrointestinal disorders, burn out syndrome, irritability and tiredness.
- unipolar depression bipolar depression, acute depression, chronic depression, subchro
- Antidepressants can also be used for (the manufacture of compositions for) primary and secondary prevention and/or the treatment of neurocognitive impairment. Furthermore they are also effective in the treatment of depressive symptoms or other symptoms related to disturbed neurotransmission occurring as comorbidity in chronic diseases such as cardiovascular diseases, strokes, cancer, Alzheimer disease, Parkinson disease, and others.
- Especially companion (pet) animals and livestock (farm) animals can be in conditions in need of enhanced or improved neurotransmission.
- Such conditions e.g. occur after capture or transport or with housing, when the animals develop analogous disorders and are dis- tressed or aggressive, or display stereotypic behaviour, or anxiety and obsessive- compulsive behaviour.
- the compounds of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above can be used in general as antidepressants for animals including humans, preferably for humans, companion (pet) animals and farm animals.
- the compounds of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above find use as mood improver in general as well as for the manufacture of compositions for such use (plant ma- ten als/ex tracts; dietary/pharmaceutical compositions).
- mood improver or “emotional wellness booster” or “vitality improver” means that the mood of a person treated with it is enhanced, that the self esteem is increased and/or that negative thoughts and/or negative tension are/is reduced. It also means the emotions are balanced and/or that the general, especially the mental, well being and vitality is improved or maintained, as well as that the risk of mood swings is (helped to be) reduced and that the positive mood is (helped to be) retained.
- the compounds of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above can also be used in general as anxiety reducer and/or obsessive- compulsive behaviour reducer for animals including humans, preferably for humans, pet animals and farm animals.
- Anxiety reducer means that chronic tension and anxious worrying and tension are allevi- ated and relieved. Hypervigilance syndrome, including restlessness, muscle tension, and sleep problems are relieved. Social and other phobias are resolved. In general, the social environment is experienced less threatening. The person is emotionally relaxed, experiences comfort and enjoys company and contact to other people.
- compositions comprising an effective dose of them are useful for the treatment, prevention and the alleviation of stress related symptoms, for the treatment, prevention and alleviation of symptoms related to working overload, exhaustion and/or burn out, for the increase of the resistance or tolerance to stress and/or to favor and facilitate the relaxation in normal healthy individuals i.e. such compositions have an effect as "stress reliever".
- compositions comprising an effective dose of them are useful for the treatment, prevention and alleviation of anxiety and obsessive- compulsive behaviour in humans and animals.
- a further embodiment of the present invention relates to the use of compounds of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above and to the use of compositions containing them (plant materials/extracts; dietary/pharmaceutical compositions) as "condition improver", i.e. as means to reduce irrita- bility and tiredness, to reduce or prevent or alleviate physical and mental fatigue, and to increase energy in more general terms, especially to increase the brain energy production, in diseased or normal healthy individuals.
- condition improver i.e. as means to reduce irrita- bility and tiredness, to reduce or prevent or alleviate physical and mental fatigue, and to increase energy in more general terms, especially to increase the brain energy production, in diseased or normal healthy individuals.
- cognition improvement in general, and especially for maintenance or improvement of attention and concentration of the memory and of the capacity for remembering, of the learning ability, of the language processing, of problem solving and of intellectual functioning; for improvement of the short- term memory; for increasing the mental alertness and sharpness, capability to focus; for enhancing the mental vigilance; for reducing the mental fatigue; for supporting cognitive wellness, for maintaining balanced cognitive function, for the regulation of hunger and sa- tiety as well as for the regulation of motor activity.
- the present invention not only refers to compounds of the general formula I with the defi- nitions of X, R and R and the preferences as given above and their compositions (i.e. (mixture(s) of) plant extracts (essentially) containing them; dietary/pharmaceutical compo- sitions containing them) for use as medicaments, especially for the treatment of disorders connected to impaired neurotransmission, but also for the methods for the treatment of such disorders themselves, as already mentioned above.
- pet animals or farm animals whose disorders are associated with housing, capture or transport are treated and which may appear in form of anxiety or obsessive-compulsive behaviour.
- a suitable daily dosage of a compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above, for the purposes of the present invention may be within the range from 0.001 mg per kg body weight to about 20 mg per kg body weight per day. More preferred is a daily dosage of about 0.01 to about 10 mg per kg body weight, and especially preferred is a daily dosage of about 0.05 to 5.0 mg per kg body weight.
- the amount of a plant material or plant extract containing such compound of the general formula I can be calculated accordingly.
- the compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above is suitably present in an amount from about 0.1 mg to about 1000 mg, preferably from about 1 mg to about 500 mg per dosage unit.
- the compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above is suitably present in an amount of from about 0.0001 (1 mg/kg) to about 5 weight-% (50 g/kg), preferably from about 0.001 % (10 mg/kg)to about 1 weight-%, (10 g/kg) more preferably from about 0.01 (100 mg/kg) to about 0.5 weight-% (5 g/kg), based upon the total weight of the food or beverage.
- the amount of the com- pound of the general formula I with the definitions of X, R 1 and R 2 is 10 to 30 mg per serving, i.e. 120 mg per kg food or drink.
- a suitable daily dosage of the compound of the general formula I with the definitions of X, R 1 and R 2 and the preferences as given above, for the pur- poses of the present invention may be within the range from 0.001 mg per kg body weight to about 1000 mg per kg body weight per day. More preferred is a daily dosage of about 0.1 mg to about 500 mg per kg body weight, and especially preferred is a daily dosage of about 1 mg to 100 mg per kg body weight.
- the 3-n-butylphthalide used in the experiments described below was obtained from Advanced Synthesis, PO Box 437920, San Ysidro, CA 92173.
- the senkyunolides and cnidilide were obtained from AnalytiCon Discovery GmbH, Hermannswerder Haus 17, 14473 Potsdam, Germany, and the ligustilide was synthesized by chemists of DSM Nutritional Products Ltd., Kaiseraugst, Switzerland. All compounds were > 95% pure.
- Example 1 Serotonin uptake inhibition and labeled citalopram displacement by compounds of the formula I.
- HEK-293 cells stably expressing the human serotonin re-uptake transporter (hSERT) were obtained from R. Blakely, Vanderbilt University, USA. The cells were routinely grown in Dulbeco's Modified Eagles Medium, purchased from Bioconcept, Allschwil, Switzerland containing 10% fetal calf serum, penicillin, streptomycin, L-glutamine and the antibiotic G418 and passaged by trypsinisation. One day prior to the assay cells were seeded in the above mentioned medium.
- the organic amines p-tyramine or benzylamine were used as substrates for the Monoamine oxidase A (MAO-A) and B (MAO-B) enzymes respectively.
- MAO-A Monoamine oxidase A
- MAO-B Monoamine oxidase A
- HRP horse radish peroxidase
- the reactions were carried out in polystyrene microtitre plates.
- the MAO enzymes final concentration 2 U/ml
- p-tyramine Sigma, final concentration 0.5 mM
- benzylamine Sigma, final concentration 0.5 mM
- the chro- mogenic solution containing vanillic acid (Fluka), 4-aminoantipyrine (Fluka) and horse radish peroxidase (Sigma), final concentrations 0.25 mM, 0.125 mM and 1 U/ml respectively
- the reactions were followed in a microtitre plate absorbance reader eg Spectramax M5 (Molceular Devices Corporation). Ab- sorbance readings at 495 nm were taken every 15 seconds for 40 minutes and the initial reaction velocties calculated by linear regression using SOFTmaxPro (Molecular Devices Corporation).
- the effect of ligustilide, 3-butylphthalide, senkyunolide C and cnidilide on the monoamine oxidase enzymes was determined by their inclusion in the assay at a range of concentrations between 0.03 and 100 ⁇ M for 10 minutes prior to and during the incubation with substrate.
- the MAO enzyme was replaced by H 2 O 2 (Molecular Probes, final concentration 0.2 mM).
- the reactions containing MAO-A and MAO-B were both inhibited by tricyclic diterpenes and their derivatives according to formula I in a dose dependent manner, whilst the control reaction, was unaffected.
- the measured IC50 values for inhibition of monoamine oxidase activity by ligustilide, 3-butylphthalide, senkyunolide C and cnidilide, respectively, are shown in Table 3.
- the method which detects the first toxic dose, the active dose-range and the principal effects of a test substance on behavior and physiological function, follows that described by Irwin 1968 Psychopharmaco, 13:222-257.
- mice were administered the test substance (3 -n-butylphthalide, ligustilide) and were observed in simultaneous comparison with a control group given vehicle (non-blind conditions). 3 treated groups were compared with the same control at any one time. All animals within a treatment group were observed simultaneously. Behavioral modifications, physiological and neurotoxicity symptoms, pupil diameter and rectal temperature were recorded according to a standardized observation grid derived from that of Irwin, supra.
- 3-Butylphthalide (98.5% purity) was solubilized in 3 % DMSO, 3 % Tween 80 in saline (0.9 % w/v NaCl) and injected into mice intraperitoneally.
- 3-n-butylphthalide showed slight sedative effects (in 5/5 mice after 15 and 30 minutes, and 2/5 at 60 minutes) and reduced muscle tone (in 5/5 mice after 15 and 30 minutes, and 3/5 mice after 60 minutes).
- 3-Butylphthalide at 300mg/kg also reduced fear and muscle tone at 120 minutes. Overall, 3-butylphthalide showed a dose dependent sedative, fear reducing and muscle relaxant effect.
- Ligustilide (98.9% purity) at 30 mg/kg induced slight sedation in 3 mice at 30 minutes.
- mice At 100 mg/kg it induced slight sedation in all 5 mice from 15 to 30 minutes and in 3 mice at 60 minutes; it decreased muscle tone in 2 mice at 30 minutes.
- 300 mg/kg sedation was moderate in all 5 mice from 15 to 60 minutes and slight from 120 to 180 minutes; it decreased muscle tone in all 5 mice from 15 to 30 minutes, in 4 mice from 60 to 120 minutes and in 3 mice at 180 minutes.
- 3-n-butylphthalide and ligustilide showed a dose dependent sedative and muscle relaxant effect.
- Example 4 Porsolt's swim test with 3-n-butylphthalide and ligustilide
- the "Behavioural Despair Test” or “Porsolt's Forced Swim Test” is a validated animal model for depression (see T. Nagatsu 2004 NeuroToxicology, 25:11-20, and Porsolt et al.1977, Arch. Int. Pharmacodyn., 229: 327-336). It responds to enhancement of the transmission of several neurotransmitters including serotonine, dopamine and noradrenaline.
- 3-n-butylphthalide (98.5% purity) was evaluated at 3 doses each: at 10, 30 and 80 mg/kg body weight, administered intraperitonally 30 minutes before the test, and compared with a control group.
- the thus administered 3-n-butylphthalide was dissolved in a saline solution containing 3 weight-% DMSO and 3 weight-% Tween® 80 (so called "vehicle").
- vehicle consisting of the saline solution containing 3 weight-% DMSO and 3 weight-% Tween® 80 was administered intraperitonally.
- 3-n-butylphthalide between 10 and 80mg/kg showed a tendency to reduce the immobility time by approximately 18%.
- Ligustilide at 10 mg/kg showed a tendency to reduce the immobility time by approx. 18%, but not at the higher doses.
- the maze consists of 4 arms of equal length and width (14 x 5 cm) arranged in the form of a plus sign (+). Two opposite arms are enclosed by 12 cm high walls (closed arms). The 2 other arms have no walls (open arms). The maze is raised 56 cm above the floor. A mouse is placed in the centre of the plus-maze and left to explore for 5 minutes. The number of entries into the open and closed arms and the time spent in the open arms is recorded. 10 mice were studied per group. The test was performed blind.
- 3-n-Butylphthalide was tested at doses of 10, 30, and 80 mg/kg body weight.
- 3-n-butylphthalide showed a trend to moderately increase the number of entries and the time spent in the open arm. It had no effect on the entries into the closed arm. 3-n- butylphthalide thus has a moderate anxiolytic activity.
- Example 6 Marble Burying Test as test for anxiety like or obsessive compulsive be- haviour
- a celery seed oil extract rich in phthalides was tested in the marble burying test.
- a crude extract from celery seed oil (Apium graveolens) obtained by supercritical CO 2 fluid extraction of the seed was bought from Guanzhou Honsea Sunshine Bio Science & Technology, Guangzhou, 510620, Peopole's Republic of China.
- This extract (66.15g) was distilled for about 2 hours in a ca. 30 cm Kugelrohr at a temperature of 125 0 C, under a pressure of 0.02 mbar.
- the distillate contained 18.12% butylphthalide, 0.87% butylidenphthalide, 35.37% senkyunolide, 20.99% sedanolide, 2.23% C16-fatty acid and 3.14% oleic acid, based on the total weight of the celery seed oil extract.
- mice Marble burying behaviour by mice is reported to be sensitive to a range of minor (e.g. di- azepam) and major (e.g. haloperidol) tranquilisers (Broekkamp et al.,1986 Eur J Pharmacol. 126:223-229), in addition to SSRIs (e.g. fluvoxamine, fluoxetine, citalopram), tricyclic antidepressants (e.g. imipramine, desipramine) and selective noradrenaline uptake inhibitors (e.g. reboxetine), at doses which do not induce sedation.
- the model may reflect either anxiety-like-or obsessive-compulsive- behaviour (see De Boer et al, 2003 Eur J Pharmacol 463:145-161.
- the marble burying test was performed in Type II cages (16 x 22 cm), which were filled with normal rodent bedding material, up to a depth of 4 cm, and the bedding was flattened gently by hand to ensure an even surface. Twelve marbles were placed, in a 3 x 4 configuration, evenly spaced, on the surface of the bedding.
- mice were individually placed into the test cages and left to explore for 30 min.
- the mice were removed from the cages and the number of marbles which have been buried (i.e. at least 2/3 covered with bedding) were counted. Fresh cages and bedding are prepared prior to testing subsequent animals.
- Celery seed oil extract was evaluated after sub-chronic oral administration at 50, 100, 200, 300 mg/kg with fluoxetine at lOmg/kg as reference substance and corn oil as vehicle.
- the celery seed oil extract fluoxetine and vehicle were administered by oral gavage 24, -5, -1 h before the test.
- mice were returned to their homecages until the next dose or beginning of the test.
- Celery seed oil extract showed a tendency to decrease the number of marbles covered as compared with the vehicle control. The effect was nearly half of that of the selective sero- tonin reuptake inhibitor fluoxetine.
- Example 7 Dopamine uptake inhibition by compounds of the formula I.
- the actions of several neurotransmitters are regulated through their rapid uptake and clearance from synaptic junctions by plasma membrane transport proteins.
- the dopamine transporter in central dopaminergic neurones is responsible for the recovery of up to 90% of released transmitter.
- the monoamine transporters are high affinity targets for a number of psychoactive agents such as cocaine, amphetamine, and antidepressants. These agents, by blocking transporters and consequently preventing neuronal uptake, elevate levels of extracellular neurotransmitter concentrations in both the central and peripheral nervous system, contributing to their behavioral and autonomic effects.
- CHO-Ki/hDAT cells expressing the human dopamine transporter (hDAT) were plated before the assay.
- Cells (2 x 10 5 /ml) were incubated with the compound of the formula I (3-n- butylphthalide) and/or vehicle in modified Tris-HEPES buffer pH 7.1 at 25 0 C for 20 minutes before addition of 50 nM [ 3 H]Dopamine for 10 minutes. Specific signal was determined in the presence of 10 ⁇ M nomifensine. Cells were then solubilized with 1% SDS lysis buffer. Reduction of [ 3 H]Dopamine uptake by 50 per cent or more (> 50%) relative to vehicle controls indicates significant inhibitory activity.
- Example 8 Norepinephrine uptake inhibition by compounds of the formula I.
- norepinephrine The actions of several neurotransmitters, including norepinephrine, are regulated through their rapid uptake and clearance from synaptic junctions by plasma membrane transport proteins.
- the norepinephrine transporter in central adrenergic neurones is responsible for the recovery of up to 90% of released transmitter.
- the monoamine transporters are high affinity targets for a number of psychoactive agents such as cocaine, amphetamine, and antidepressants. These agents, by blocking transporters and consequently preventing neuronal uptake, elevate levels of extracellular neurotransmitter concentrations in both the central and peripheral nervous system, contributing to their behavioral and autonomic effects.
- Human recombinant norepinephrine transporter stably expressed dog kidney MDCK cells are plated one day before the assay.
- the cells (2 x 10 5 /ml) were preincubated with the compound of the formula I (3-n-butylphthalide) and/or vehicle in modified Tri-HEPES buffer pH 7.1 at 25 0 C for 20 minutes, then 25 nM [ 3 H]Norepinephrine was added for 10 minutes incubation. Cells in the well were then rinsed twice, solubilized with 1 % SDS lysis buffer and the lysate was counted to determine [ 3 H]Norepinephrine uptake. Specific signal was determined in the presence of 10 ⁇ M desipramine.
- a soft gelatin capsule (500 mg) may be prepared comprising the following ingredients:
- Two capsules per day for 3 months may be administered to a human adult for the treatment of mild chronic dysthymia.
- Example 10 Preparation of a soft gelatin capsule
- a soft gelatin capsule (600 mg) may be prepared comprising the following ingredients:
- One capsule per day preferably at the second half of the menstrual cycle may be taken for 14 days for the treatment of premenstrual syndrome and premenstrual dysphoric disorder.
- a 400 mg- tablet may be prepared comprising the following ingredients:
- one tablet may be taken twice daily for 3 months.
- AIl ingredients are blended and sieved through a 500 ⁇ m sieve.
- the resulting powder is put in an appropriate container and mixed on a turbular blender for at least 20 minutes.
- 125 g of the obtained mixed powder are taken and filled up with water to one liter of beverage.
- the ready-to-drink soft drink contains ca. 30 mg of 3-n-butylphthalide per serving (250 ml).
- Example 13 Preparation of a fortified non baked cereal bar
- 3-n-Butylphthalide is premixed with skim milk powder and placed in a planetary bowl mixer. Cornflakes and rice crispies are added and the total is mixed gently. Then the dried and cut apples are added.
- a first cooking pot sugar water and salt are mixed in the amounts given above (solution 1).
- glucose invert and sorbitol syrup are mixed in the amounts given above (solution 2).
- a mixture of baking fat, palm- kernel fat, lecithin and emulsifier is the fat phase.
- Solution 1 is heated to 110 0 C.
- Solution 2 is heated to 113°C and then cooled in a cold water bath. Afterwards solution 1 and 2 are combined. The fat phase is melted at 75°C in a water bath.
- the fat phase is added to the combined mixture of solution 1 and 2.
- Apple flavour and citric acid are added to the liquid sugar- fat mix.
- the liquid mass is added to the dry ingredients and mixed well in the planetary bowl mixer.
- the mass is put on a marble plate and rolled to the desired thickness.
- the mass is cooled down to room temperature and cut into pieces.
- the non baked cereal bar contains ca. 25 mg oregano extract per serving (30 g). For general well-being and energizing 1 -2 cereal bars may be eaten per day.
- Example 14 Dry dog feed comprising 3-n-butylphthalide or ligustilide for relieving stress and revitalizing the dog
- Example 15 Wet cat food comprising 3-n-butylphthalide or ligustilide
- Example 17 Cat treats containing 3-n-butylphthalide or ligustilide
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Abstract
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Priority Applications (6)
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EP07786654A EP2068863B1 (en) | 2006-08-11 | 2007-08-10 | Ligustilide for the treatment of disorders of the central nervous system |
DE602007011302T DE602007011302D1 (en) | 2006-08-11 | 2007-08-10 | LIGUSTILIDE FOR THE TREATMENT OF DISEASES OF THE CENTRAL NERVOUS SYSTEM |
AT07786654T ATE491446T1 (en) | 2006-08-11 | 2007-08-10 | LIGUSTILIDE FOR THE TREATMENT OF CENTRAL NERVOUS SYSTEM DISEASES |
JP2009524106A JP2010500386A (en) | 2006-08-11 | 2007-08-10 | Ligustilide derivatives for treating disorders of the central nervous system |
BRPI0715929-3A BRPI0715929A2 (en) | 2006-08-11 | 2007-08-10 | ligustilide derivatives for the treatment of central nervous system disorders |
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WO2011017905A1 (en) * | 2009-08-12 | 2011-02-17 | 上海张江中药现代制剂技术工程研究中心 | Use of senkyunolide i in manufacture of medicament for anti-depression, treating migraine and other diseases related to serotonergic system |
EP2504007A1 (en) * | 2009-11-23 | 2012-10-03 | Purapharm International (HK) Limited | Novel therapeutic methods for treating inflammation and immune system disorders |
US8729026B2 (en) | 2012-08-10 | 2014-05-20 | China Medical University | Method for inhibiting autophagy of motor neurons |
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US20120231141A1 (en) * | 2009-11-12 | 2012-09-13 | Yoshiko Kurobayashi | Bitterness-improving agent for bitter food and drink and astringency-improving agent for astringent food and drink |
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CN102144999B (en) * | 2010-02-09 | 2013-05-01 | 上海张江中药现代制剂技术工程研究中心 | Application of senkyunolide H in preparing medicine for preventing and curing cerebral apoplexy |
CN102133215B (en) * | 2011-03-18 | 2012-05-23 | 新乡医学院 | Application of butylphenyl phthaleine in preparing medicament for treating chronic alcoholism |
JP6178802B2 (en) * | 2012-08-17 | 2017-08-09 | 中國醫藥大學 | Pharmaceutical composition and its use for inhibiting motor neuron autophagy |
KR101892078B1 (en) * | 2012-10-24 | 2018-08-28 | 한국해양과학기술원 | Pharmaceutical Composition for Prevention or Treatment of Brain Cancer Comprising Robarstin and Combination Therapy in the Treatment of Brain Cancer Using the Same |
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JP6589867B2 (en) * | 2014-08-13 | 2019-10-16 | 国立大学法人 鹿児島大学 | Method for reducing animal transportation stress and animal transportation method using the same |
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US20170266154A1 (en) * | 2016-03-15 | 2017-09-21 | National Sun Yat-Sen University | Method for treating alzheimer's disease and 2, 3-biphosphoglycerate metabolism disorder induced |
CN106432161A (en) * | 2016-07-19 | 2017-02-22 | 四川大学 | 3-Alkyl-5,6-dioxo-substituted phthalide compounds, and preparation method and use thereof |
CN110548004B (en) * | 2018-05-30 | 2023-05-16 | 成都施贝康生物医药科技有限公司 | Stable butylphthalide high-capacity injection and preparation method thereof |
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- 2007-08-10 RU RU2009108655/04A patent/RU2462462C2/en not_active IP Right Cessation
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EP2068863A2 (en) | 2009-06-17 |
DE602007011302D1 (en) | 2011-01-27 |
BRPI0715929A2 (en) | 2013-07-30 |
RU2009108655A (en) | 2010-09-20 |
ES2357261T3 (en) | 2011-04-20 |
CN101563080A (en) | 2009-10-21 |
RU2462462C2 (en) | 2012-09-27 |
WO2008017491A8 (en) | 2009-05-07 |
JP2010500386A (en) | 2010-01-07 |
US20100184852A1 (en) | 2010-07-22 |
EP2068863B1 (en) | 2010-12-15 |
ATE491446T1 (en) | 2011-01-15 |
KR20090078777A (en) | 2009-07-20 |
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