WO1999020620A1 - Derive d'isoquinoleine et medicament - Google Patents
Derive d'isoquinoleine et medicament Download PDFInfo
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- WO1999020620A1 WO1999020620A1 PCT/JP1998/004781 JP9804781W WO9920620A1 WO 1999020620 A1 WO1999020620 A1 WO 1999020620A1 JP 9804781 W JP9804781 W JP 9804781W WO 9920620 A1 WO9920620 A1 WO 9920620A1
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- pharmaceutical composition
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
Definitions
- the present invention relates to an isoquinoline derivative which has a cerebral vasoconstriction inhibitory action and a blood flow increasing action and is useful as a medicine.
- Cerebrovascular disorders are broadly divided into bleeding groups and ischemic groups.
- bleeding group subarachnoid hemorrhage due to rupture of the cerebral artery, hypertensive cerebral hemorrhage, and head trauma are typical.
- Subarachnoid hemorrhage causes a narrowing of the vascular lumen in the main artery of the brain that lasts 4-5 days after bleeding and lasts about 2 weeks. This is called cerebral vasospasm.
- cerebral vasospasm There are still many unclear points about its mechanism of expression, and various physiologically active substances (eg, phytocolamin, hemoglobin, lipid peroxide, arachidonic acid metabolites, peptides, and protein kinase C) are involved. It is attributed to the interaction of these various physiologically active substances.
- ischemic disorders When neurological disorders appear due to ischemia associated with vascular stenosis, it affects not only the prognosis of function but also sometimes the prognosis of life.
- cerebral infarction and transient ischemic attack TIA
- TIA transient ischemic attack
- Vascular disorders and nerve cell damage associated with ischemia or hemorrhage may cause numbness and dyskinetic movements such as numbness and nervous and mental disorders in the acute to chronic phases. In severe cases, it may lead to impaired consciousness and death.
- Antithrombotic agents and cerebral circulation and metabolism improvers are used to treat these cerebrovascular disorders. However, there are few agents that suppress the damage of nerve cells that progress to lethal cerebral vasorelaxation or dementia, and therapeutic agents are expected.
- Fasudil hydrochloride hexahydrol (5-isoquinolinylsulfonyl) -1H-1,4-dazepine
- hexahydrol (5-isoquinolinylsulfonyl) -1H-1,4-dazepine
- angina is a typical example of ischemic heart disease.
- ischemia accompanies vascular stenosis, leading to myocardial infarction and even death.
- vasodilators are mainly used, but many of them also have an antihypertensive effect, and there are few drugs that treat vascular changes.
- cardiovascular agents vasodilators, cerebral circulation improvers, angina treatments, cerebral cardiovascular thrombosis. It is known to be useful as a prophylactic and therapeutic agent, a prophylactic and / or therapeutic agent for hypertension, and a cerebral function improving agent (JP-A-57-15846S, JP-A-57-200366, JP-A-57-200366) 58-121278, JP-A-58-121279, JP-A-59-93054, JP-A-60-81168, JP-A-61-152658, JP-A-61-227581 No.).
- a brain function improver a drug that prevents, improves, or slows the progression of impairment of brain tissue function, sabotage (including metabolic capacity) and symptoms associated with it, and sequelae). It is known that this is the case (see Japanese Patent Application Laid-Open No. 2 256617).
- the 5-position of the isoquinoline skeleton was a cyclic aminosulfonyl.
- a compound having a substituent at the 4-position is a superior cerebrovascular disorder preventive or therapeutic agent than these known compounds, and a patent application was previously filed (International Publication W037 / 281). No. 30).
- the isoquinoline skeleton has a fluorine atom at the 4-position, the 5-position is substituted with a hexahydrido-4H-1.4-dazepine-ylsulfonyl, and the hexahydro-4 ⁇
- the compound of the present invention in which the 2-position of 1,4-dazepine is substituted with methyl is not specifically disclosed. Disclosure of the invention
- the object of the present invention is to be highly safe and superior to existing drugs as a cerebrovascular disorder prevention and treatment agent, especially as a cerebrovascular contraction inhibitor, and as a preventive and therapeutic agent for diseases associated with ischemic lesions.
- the present inventors have synthesized and studied various compounds having a novel structure, and found that a compound represented by the following formula [I] can be administered to the brain at a very low dose.
- the present invention has been found to have a vasoconstriction inhibitory effect and to have an excellent blood flow increasing effect by dilating coronary blood vessels and cerebral blood vessels without lowering systemic blood pressure. Therefore, the present invention provides the following formula [I]
- a pharmaceutical composition contained as a component.
- a special feature of the chemical structure of the compound of the present invention is that the 4-position of the isoquinoline skeleton is substituted with fluorine, and the 5-position hexahydro-4H-1,4-azepin-1-ylsulfonyl. Hexahydro-4 ⁇ -diazepine is substituted with methyl at position 2.
- the compound [I] of the present invention has an asymmetric carbon and has optical isomers. Both of these isomers and mixtures thereof are included in the present invention. Of these, the (S) body is preferred.
- Examples of the “pharmaceutically acceptable salt” include salts of inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, hydrobromic acid, and acetic acid, tartaric acid, lactic acid, and cunic acid. And salts of organic acids such as fumaric acid, maleic acid, succinic acid, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, toluenesulfonic acid, naphthalenesulfonic acid, and camphorsulfonic acid. it can.
- inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, hydrobromic acid, and acetic acid, tartaric acid, lactic acid, and cunic acid.
- salts of organic acids such as fumaric acid, maleic acid, succinic acid, methanesulfonic acid, ethan
- the compound [I] of the present invention can be produced, for example, by the method described in International Publication WO097 / 28130 or the following method.
- R 31 represents a protecting group or a leaving group.
- L ′ as the leaving group include a residue of a reactive derivative of sulfonic acid described below.
- protecting group represented by R 31 include: Examples thereof include acyl such as formyl, acetyl and benzoyl, aralkyloxycarbonyl such as benzyloxycarbonyl, alkoxycarbonyl such as tert-butyloxycarbonyl, and aralkyl such as benzyl.
- the amine represented by the formula [III] is reacted with a reactive derivative of the sulfonic acid represented by the formula [II] in a suitable solvent to remove the protecting group to produce the compound [I].
- the reaction solvent may be any solvent that does not hinder the reaction. Examples thereof include ethers such as tetrahydrofuran (THF), dioxane and getyl ether, hydrocarbons such as benzene and toluene, and chlorides. Halogenated hydrocarbons such as methylene and chloroform, non-protonic polar solvents such as N, N-dimethylformamide, N, N-dimethylacetamide, pyridine, and acetonitrile Ril, or a mixture thereof can be used.
- Sulfonic acid halides eg, sulfonic acid chloride, sulfonic acid buideamide), sulfonic anhydride, N-sulfonylimidazolide, etc. are used as reactive sulfonic acids of sulfonic acid. It is possible. Particularly, sulfonic acid halide is preferable.
- This reaction is preferably performed in the presence of a suitable base.
- bases include alkali metal bicarbonates (eg, sodium bicarbonate), alkaline metal carbonates (eg, lithium carbonate), alkali metal hydroxides (eg, Organic class S amines such as sodium hydroxide, sodium hydroxide, and sodium hydroxide, and triethylamine and triethylenediamine can be used. If a basic solvent such as gin is used, such a base is not required and is preferred.
- the amount of the amide [III] used is preferably 1 to 5 moles per mole of the reactive derivative [II], more preferably 1 to 2 moles per mole of the reactive derivative [II]. is there.
- the amount of base used is
- [II] is used in an amount equal to or less than an equimolar amount, preferably 0.5 to 0.1 times the molar amount of the amide [III].
- the reaction time varies depending on the raw materials, solvent, reaction temperature, etc. used, but is usually 5 minutes to 70 hours.
- the protecting group is then removed in a manner known per se.
- the protecting group can be removed by a method known per se, such as acid treatment, alcohol treatment, and catalytic reduction.
- Step 1 Compound [IV] is produced by reacting 2-amino-1-propanol with compound [III] in the same manner as in Production Method 1.
- the hydroxy group of compound [IV] can be converted to a halogen (eg, chlorine, bromine), a sulfonyloxy (eg, methansulfonyloxy), or an acyloxy (eg, tosylquinine) by a method known per se. , Acetyloxy) and then reacting 3-amino-1-propanol in an appropriate solvent in the presence or absence of a base in the same manner as in Production Method 1 to give the compound [V ] Is manufactured.
- a halogen eg, chlorine, bromine
- a sulfonyloxy eg, methansulfonyloxy
- an acyloxy eg, tosylquinine
- the compound [I] can also be produced by treating the compound [V] with triphenylphosphine and dialkyl abdicarboxylate and performing an intramolecular dehydration condensation reaction.
- the amino group is protected with a commonly used protecting group, if necessary, and after the above reaction, protected by a method known per se such as acid treatment, alkali treatment, or catalytic reduction.
- a method known per se such as acid treatment, alkali treatment, or catalytic reduction.
- the amino-protecting group from which the group can be removed include benzyl, benzyloxycarbonyl, and trifluoroacetyl.
- the compound [I] of the present invention is usually obtained in a racemic form.
- racemic forms have pharmacological activity as they are, but can be separated into the respective isomers as desired.
- a mixture of isomers can be subjected to a known optical resolution method, for example, an optically active carboxylic acid (eg, (10)-or (-)-tartaric acid).
- the optical isomer can be obtained by performing each reaction using an optically active raw material compound (S configuration or R configuration) corresponding to the raw material compound [III]. it can.
- the compound [I] of the present invention can form the above-mentioned salt by a known method.
- the hydrochloride of the compound [I] of the present invention can be obtained by dissolving the compound [I] of the present invention in an alcohol solution or hydrogen ether solution of hydrogen chloride, concentrating the solution, and collecting the precipitated crystals by filtration. Can be.
- the compound of the present invention thus produced can be obtained by a method known per se in the form of a free base or an acid addition salt, for example, by concentration, liquid conversion, phase transfer, solvent extraction, crystallization, It can be isolated and purified by distillation, chromatography and recrystallization.
- the compound of the present invention has a ⁇ vasoconstriction inhibitory action and is highly safe, it is useful for the treatment of ⁇ cerebrovascular disorders, particularly ⁇ ⁇ prevention of cerebral tissue disorders due to vascular constriction after hemorrhage ⁇ . In addition, since it has a blood flow increasing effect, it is also useful as an agent for preventing or treating a lesion associated with ischemic disease.
- the compound of the present invention when administered as a medicament, the compound of the present invention may be used as it is or in a pharmaceutically acceptable non-toxic and inert carrier, for example,
- composition containing 0.1% to 99.5%, preferably 0.5% to 90%.
- the pharmaceutical composition is administered It may be desirable to administer in unit form.
- the pharmaceutical composition of the present invention can be administered orally, intraosseously, topically (such as transdermally), or rectally. Of course, they are administered in dosage forms suitable for these administration methods. Above all, intravenous administration or oral administration is preferred.
- the dosage as a medicament should be adjusted in consideration of the patient's condition such as age and weight, the administration route, the nature and degree of the disease, etc., but it is usually used as a therapeutic agent for preventing cerebrovascular disease.
- the amount of the active ingredient of the present invention for an adult is 0.1 to 100 mg / day, preferably 1 to 30 mg / human knee per day.
- the daily dose is in the range of 1-1, OOO mg / human, preferably in the range of 10-30 mg / human.
- the amount of the active ingredient of the present invention for adults is preferably 0.1 to 100 mg / human in intravenous administration.
- Xylene was decanted from the obtained tar, and the xylene solution was extracted S times with 100 ml of dilute hydrochloric acid.
- the hydrochloric acid layer and the tarry substance were mixed, water (100 ml) was added to the mixture, the mixture was made alkaline with potassium carbonate, and extracted three times with 400 ml of ether.
- the extract was dried over magnesium sulfate, filtered, activated carbon was added, and filtered through celite.
- the solvent was distilled off, and the residue was purified by silica gel column chromatography (black-mouthed form). The solvent was distilled off to obtain 14.5 g of 4-fluoroisoquinoline.
- reaction solution was extracted three times with 400 ml of black hole.
- the extract was neutralized and washed with a sodium hydrogencarbonate aqueous solution, dried, and then the solvent was distilled off to obtain 9.6 g of 5-mouth rosulfonyl-4-fluoroysoquinoline.
- Example 2 The compound of Example 2 and sodium chloride were dissolved in water for injection at the above ratio, filtered using a membrane filter (0.22 ⁇ ), filled into the sample, sterilized, and sterilized with an aqueous elution agent. I do.
- granules for tableting are manufactured by a wet granulation method using an aqueous solution of polyvinyl alcohol as a binder. . After mixing with magnesium stearate, each tablet is weighed to 180 mg using a tableting machine to give internal tablets.
- the above-mentioned components except for ⁇ -pidipropylcellulose are uniformly mixed, and then kneaded with an aqueous solution of hydroxyp-sipircellose as a binder, and then granulated with a granulator to obtain granules.
- test examples of typical compounds of the present invention are shown.
- the test food was the compound of Example 2, and the comparative control compound was a compound specifically disclosed in the prior art W097 / 28130, a hexahydrodraw that is structurally closest to the compound of the present invention.
- 1 (4 —Fluoro-5 —isoquinolinin sulfonyl) — 1 ⁇ — 1,4 —Dazebine hydrochloride (hereinafter referred to as compound ⁇ ) and a commercially available product, fasudil hydrochloride were used.
- Test example 1 4 —Fluoro-5 —isoquinolinin sulfonyl) — 1 ⁇ — 1,4 —Dazebine hydrochloride (hereinafter referred to as compound ⁇ ) and a commercially available product, fasudil hydrochloride were used.
- Test example 1 4 —Fluoro-5 —isoquinolinin sulfony
- Rats anesthetized with ether were sacrificed by exsanguination, and the thoracic aorta (about 3 cm) was removed. After removal of fat and connective tissue, an infusion specimen of about 3 band width was obtained, and the lumen was rubbed to remove intracellular blood cells. The specimen was mounted on an isometric tension transducer in a Magnus bath filled with nutrient solution and a lg static tension was applied. The nutrient solution in the Magnus tank is maintained at 37 under aeration of a mixed gas (95% 0 2 + 53 ⁇ 4C 0 2 ) and nourished about every 20 minutes. The sample was allowed to stabilize for about 1 hour while changing the solution.
- the compound of the present invention has an action of relaxing blood vessels contracted by calcium ionophore, and the action intensity was much higher than that of the comparative compound, compound A and fasudil hydrochloride.
- the head of a rat (SD, male, 11-12 weeks old) anesthetized with urethane was fixed, the striated muscle was separated, and the tibia was exposed.
- a dental drill Using a dental drill, a hole with a diameter of about 5 was drilled in the skull just above the middle cerebral artery (MC A) so that the MC A could be seen directly.
- the probe (diameter: 1.0 yield) of the laser Doppler blood flow meter was brought close to the MC A, and the change in the MC A blood flow was measured.
- the test compound was dissolved and diluted in physiological saline, and Smg / kg was administered from the femoral vein via a force nebulizer for 5 minutes.
- the effect of each compound was indicated by the blood flow increase rate before drug administration.
- the blood flow increase rate of the compound of Example 2 was 18.8%.
- the increase in blood flow of compound A and fasudil hydrochloride were 12.4% and 5.2%, respectively.
- the test compound was administered for 30 minutes, and the blood flow increase rate was measured in the same manner.
- the compound of Example 2 significantly increased the blood flow to 5.2 ⁇ , 9.6% by administering lmg / kg and 3mg / kg, respectively, while the increase of fasudil hydrochloride was observed at 3nig / kg.
- a significant 5.4% increase was seen with l Omg / kg.
- the compound of the present invention had an effect of increasing rat middle cerebral artery blood flow, and the effect was much greater than that of the comparative compound A and fasudil hydrochloride.
- the compound of Example 2 showed a significant remission effect on vasoconstriction at a dose of 0.3 mg / kg or more, and completely attenuated the plaque at 3 mg / kg.
- Blood pressure did not change significantly at 0.3 mg / kg, but decreased at Img / kg and above.
- fasudil hydrochloride at lOmg / kg showed a significant remission effect only immediately after infusion, and blood pressure decreased at 3 mg / kg or more.
- the compound of the present invention significantly relieved vasospasm at a very low dose of 0.3 g / kg and at a dose that did not cause a change in blood pressure.
- Compound 0.03, 0.1, 0.3 or lmg / kg and ⁇ fasudil 1 or 3mg / kg were administered intravenously continuously over 30 minutes immediately after occlusion of the middle cerebral artery, resulting in cerebral cortex and striatum. in the compound of example 2 was significantly inhibited each stroke body ⁇ administration of O.
- Example 2 showed a cerebral infarction inhibitory action in both the cerebral cortex and the striatum, and the action was clear in the cerebral cortex.
- 0.3 and l mg / kg cerebral infarct volume was reduced to agree to 64.51 ⁇ 3 and 55.6 8 86. 3 mm 8 (P rather each 0.05 in cerebral quality in the administration of, P rather 0.01), administration of ling / kg significantly reduced the infarct volume in the striatum from 5S.2mm s to 37.Smm 11 (P ⁇ 0,05).
- fasudil hydrochloride is Atsuta only significantly inhibited in 1 and 3Nig / respectively infarct volume in the striatum from 59.9 Yuzuru 3 administration of 43.5 (11111 8 and 44.5111111 3 ( P ⁇ 0.01).
- Example 2 showed a far superior improvement effect on cerebral thrombotic cerebral infarction than fasudil hydrochloride.
- Pentobarbital sodium (3 to 5 mg / kg / hr) was continuously infused from a force knuckle placed in the right cephalic vein to maintain blood pressure.
- the chest is opened between the 4th and 5th ribs under artificial respiration (tidal volume 15 ml / kg, respiratory frequency 2 Dbreaths / min), then the pericardium is opened, and the heart is hammerock-shaped. Hanged and fixed.
- An electromagnetic blood flow probe was attached to the anterior descending coronary artery of the left coronary artery.
- Coronary blood flow was measured using an electromagnetic blood flow meter and a bioelectric probe, and recorded on a recticorder.
- the compound of Example 2 and fasudil hydrochloride were dissolved in physiological saline at the time of use so that the dose volume per animal was 30 ml, and it took 30 minutes from a cannula previously placed in the left cephalic vein.
- the percent change relative to the value before the start of continuous infusion was calculated.
- the measurement was performed for 60 minutes including during the administration. As a result, saline administration showed almost no change in coronary artery blood flow.
- the time course of the coronary artery blood flow after the start of intravenous administration of the test drug was observed.
- the compound of Example 2 showed significant increases of 29.7%, 69.3% and 86.7% at 0.1, 0.3 and 1 mg / kg, respectively.
- the control compound fasudil hydrochloride showed an increasing tendency at 3 mg / kg, and only a significant increase of 53.1 at 10 mg / k.
- the compounds of the present invention exhibited remarkably excellent cerebral vasoconstriction / relaxation effects, blood flow increasing effects, etc. as compared with known compounds similar to the compounds of the present invention.
- test drug was administered to a 6-week-old male sic SD rat (5 cases per group) via the tail vein over 60 seconds, and the presence or absence of death was observed for 24 hours thereafter.
- Commercial availability As described above, the compound of the present invention shows a stronger cerebral vasoconstriction at a much lower dose and at a dose that does not show a change in blood pressure as compared with the control compound, Compound A or holil hydrochloride, which is similar to the compound of the present invention. It showed a remission effect.
- the compound of the present invention completely restored the pancreatic blood vessels to the inner diameter before blood injection.
- the compound of the present invention is useful for the prevention and treatment of cerebrovascular disorders, particularly brain tissue disorders due to cerebral vasospasm after cerebral hemorrhage.
- the compound of the present invention is characterized in that the above cerebral blood vessels! ⁇
- it has excellent organ organ selectivity at a much lower dose compared to the control compound puasudil hydrochloride, blood vessel and cardiovascular dilation action, blood flow increasing action, and ⁇ ischemic nerve Since it also has a cytoprotective effect, it is useful as a prophylactic or therapeutic agent for diseases associated with ischemic lesions.
- the compound of the present invention dilates cerebral blood vessels, has an effect of increasing axillary blood flow and a protective effect on ischemic nerve cells, and is therefore useful in patients with cerebral hemorrhage, cerebral infarction, transient ischemic attack, head trauma, etc. It is useful as a prophylactic or therapeutic agent for symptoms (eg, exercise hemp). Furthermore, it expands coronary blood vessels and exhibits an excellent effect of increasing coronary blood flow, which is useful for the prevention and treatment of myocardial infarction and angina pectoris.
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000516962A JP4316794B2 (ja) | 1997-10-22 | 1998-10-22 | イソキノリン誘導体及び医薬 |
AU96461/98A AU9646198A (en) | 1997-10-22 | 1998-10-22 | Isoquinoline derivative and drug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28968897 | 1997-10-22 | ||
JP9/289688 | 1997-10-22 |
Publications (1)
Publication Number | Publication Date |
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WO1999020620A1 true WO1999020620A1 (fr) | 1999-04-29 |
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ID=17746466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/004781 WO1999020620A1 (fr) | 1997-10-22 | 1998-10-22 | Derive d'isoquinoleine et medicament |
Country Status (3)
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JP (1) | JP4316794B2 (ja) |
AU (1) | AU9646198A (ja) |
WO (1) | WO1999020620A1 (ja) |
Cited By (35)
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US7094789B2 (en) | 2002-07-22 | 2006-08-22 | Asahi Kasei Pharma Corporation | 5-substituted isoquinoline derivatives |
WO2006090783A1 (ja) * | 2005-02-25 | 2006-08-31 | Kowa Co., Ltd. | 4-フルオロイソキノリン-5-スルホニルハライド又はその塩の製造方法 |
WO2006115245A1 (ja) * | 2005-04-25 | 2006-11-02 | D. Western Therapeutics Institute, Inc. | 4-エチニルイソキノリン誘導体及びこれを含有する医薬 |
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- 1998-10-22 WO PCT/JP1998/004781 patent/WO1999020620A1/ja not_active Application Discontinuation
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AU9646198A (en) | 1999-05-10 |
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