baber/WOPTO huggingface dataset:
Patent HU-209973-B (HU)
Title: Process for production of antiviral and immunstimular pharmaceutical composition
Inventor: A FELTALALOK NEVUEK FELTUENTET
IPC: A61P37/04
Filed: 1988-03-09
Abstract: The compositions comprise as active ingredients: amino acids occurring in living organisms and/or their derivatives containing the carboxyl group as substituted by a C1-4 alkyl group or amino group or by an alkali metal, alkali earth metal or ammonium cation; or the hydrates and/or salts of these compounds together with one or more C18-24 fatty acid(s) containing an alkyl group bearing at least two double bonds, optionally in admixture with carriers and/or additives and antioxidants commonly used in the pharmaceutical industry, wherein the molar ratio of the amino acid and the fatty acid(s) is from 1:4 to 4:1.
Patent HU-191399-B (HU)
Title: Process for the production of new compound medicine of synergic effect
Inventor: SIMON FERENC
IPC: A61K31/215
Filed: 1984-03-28
Abstract: The invention relates to a synergistic anti-septic-antiprotozoal drug composition useful for the treatment of respiratory, gasto-intestinal and urogenital infections of domestic animals. The composition comprises tiamulin hydrogen fumarate and microbiologically active organic acids, preferably oxolinic acid and nalidixic acid or a pharmaceutically acceptable water-soluble derivate thereof in a weight ratio of 1:5 to 5:1. The active components are admixed or diluted with a carrier used in veterinary therapy and formulated for oral or parenteral use.
Patent HU-190473-B (HU)
Inventor: PALFY MIKLOS
IPC: H01L31/04
Filed: 1984-03-29
Abstract: A találmány tárgya: napelem panel, mely üveg előlapból (1), az üveghez és fémhez jól tapadó, rugalmas, transzparens, szigetelő beágyazó anyagból (3), ebbe ágyazott napelemekből (4) és fényreflektáló felületből (5), továbbá hátoldali tartólapból (2) áll, amelybe a találmány szerint a reflektáló felület (5) és a hátoldali tartólap (2) között hőre lágyuló, a beágyazó anyagénál (3) alacsonyabb lágyuláspontú műanyagból kialakított leválasztó réteg (6) van beépítve.  -1-
Patent HU-200011-B (HU)
Inventor: BOGDANY JANOS
IPC: G06F9/22
Filed: 1988-03-25
Abstract: Az eljárás során a mikroprogram szót tárolóból
kiolvassuk, és rögzítjük azt, hogy a feltétel
teljesülése, vagy pedig a feltétel nem
teljesülése esetén történjen-e elágaztatás,
majd a rögzített feltétel teljesülést megvizsgáljuk
és annak teljesülése esetén meghatározzuk
az elágaztatáshoz szükséges új címet.
Az új cím meghatározásával egyidejűleg átír- 10
juk a mikroprogramtár cimregiszterét és
rögtön meg is címezzük a mikroprogram következő
végrehajtandó utasítását tartalmazó
szavát és az elágaztatást egyetlen utasítás
végrehajtási ciklus alatt elvégezzük. 15
Az áramköri elrendezés mikroprogram
tárának (11) bemenete cim vezetékkötegen
(C) át cimregiszter (12) kimenetére, kimenete
pedig adat vezetékkötegen (A) keresztül
feltétel vizsgáló áramkör (14) bemenetére van 20
csatlakoztatva. A címregiszter (12) bemenetei,
részben időzítő vezetéken (i) át óragenerátor
(13). kimenetére, részben pedig cimvezeték csoporton (D) keresztül a feltétel vizsgáló
áramkör (14) kimeneteire vannak kötve. A
5 feltétel vizsgáló áramkör (14) további bemenetei
az áramköri elrendezés bemenetelt képező
feltétel vezetékkötegre (G) vannak
csatlakoztatva.
Patent HU-184484-B (HU)
Inventor: HORANSZKY ZSIGMOND
IPC: A01G25/00
Filed: 1981-10-07
Abstract: A találmány olyan felszínalatti kistárcsás öntözőberendezés, amelynek lényege, hogy az öntözendő növényhez vagy növénysorhoz vezető öntözővezetékű felszínfeletti vezetékrendszere, az öntözendő növény vagy növénysor gyökérzetének aktív felületszintje környezetében elhelyezett, növényenként! külön-külön, pl. tányérszerű, vagy növénysoronként összefüggően végigmenően, vagy szakaszosan kiképzett, szalagszerű, pl. két végén lezárt vápaszelvényü felszínalatti kistározói, valamint az öntözővezetékből a felszín alá, a kistározók fölé vezető függőleges vagy ferde leágazóvezetékei vannak.  -1-
Patent HU-199975-B (HU)
Title: Rotor heat exchanger
Inventor: MAMEDOV ULCHAR A O
IPC: F28D11/02
Filed: 1987-07-27
Abstract: Relative rotation between the main and auxiliary ports of a rotary heat exchanger results from a fixed connection between the main part of the housing and a mechanical connection between the connecting spindle of the auxiliary part and the drive. (First major country equivalent to CS8705278) - (Dwg.1)
Patent HU-205775-B (HU)
Title: Process and equipment for converting burnable impurities and wastes into pure energy and usable product
Inventor: TOGNAZZO VALERIO
IPC: C10J/
Filed: 1988-05-27
Abstract: A process for the transformation of combustible pollutants or waste materials into clean energy and utilisable products, characterised by: - submitting the material to be treated to the action of a thermic lance in an airless atmosphere so as to totally decompose it and extract combustible gases, non-combustible gases and inerts, - cooling the thermally decomposed products and separating the inert products with water, thus generating steam, - introducing the steam and said cooled gases onto a heated carbonaceous mass in order to filter the gases and, in part, transform them to obtain hydrogen, carbon monoxide and other totally utilisable gaseous products, and - cooling said gaseous products. a
Patent HU-191039-B (HU)
Inventor: HUBELE ADOLF
IPC: C07D307/68
Filed: 1981-12-11
Abstract: ése metilcsoport, Ar jelentése NH2- vagy NO2-
csoporttal, valamint további csoportokkal szubsztituált
fenil- vagy β-naftil-csoport, W jelentése észtercsoport
és B jelentése alkil-, alkenil-, ciklopropil-,
2-furil-, 2-tetrahidrofuril-, triazolil-metil-, metilszulfonil-metil-,
alkoxi-alkil-csoport.
Patent HU-186207-B (HU)
Title: Process for preparing /1,2/-anellated 1,4-benzodiazepine derivatives
Inventor: LIEPMANN HANS
IPC: C07D513/04
Filed: 1982-12-27
Abstract: [1,2]-fused 1,4-benzodiazepine compounds are disclosed corresponding to the general formula I    <IMAGE>  I  wherein X is an oxygen or sulfur atom or an optionally substituted imino group, R1 is a hydrogen or halogen atom, lower alkyl radical, a lower alkoxy radical or a nitro group and R2 is a hydrogen or halogen atom, a lower alkyl radical, a lower alkoxy radical or a nitro group, or if R1 is a hydrogen atom, R2 may also be a lower alkylthio radical, or, if R1 is a hydrogen atom and X is a sulfur atom or an imino group, R2 may be a trifluoromethyl radical; or R1 and R2 are bonded to adjacent carbon atoms and together denote a methylenedioxy or ethylenedioxy radical; R3 is an optionally substituted furyl, thienyl, pyrrolyl or pyridyl radical and n is zero or, if R3 is furyl or thienyl, n may be 0 or 1. The compounds may be in the form of their optical isomers or acid addition salts. The compounds exhibit neuroleptic properties. Processes for preparing the compounds and pharmaceutical compositions containing them are also disclosed.
Patent HU-199430-B (HU)
Title: Herbicides comprising 1h-imidazole derivatives as active ingredient and process for producing the compounds
Inventor: DE BRUYN MARCEL F
IPC: C07F9/6506
Filed: 1987-12-23
Abstract: A method of controlling weeds by applying thereto or to the locus thereof of an imidazole derivative of formula
     wherein
     R 1  is hydrogen or mercapto;   L is cyano or a radical of formula                     X is 1-indanyl, 1-tetrahydronaphthalenyl, 5-benzocycloheptanyl, 4-tetrahydrobenzothienyl, 4-tetrahydroben- zofuryl, 5-tetrahydroquinolyl, 5-tetrahydroisoquinolyl, 8-tetrahydroquinolyl, 8-tetrahydroisoquinolyl, 9,10-dihydro-9-antracenyl, 9H-fluoren-9-yl, 5-dibenzo[a,d]-cycloheptenyl, 5-dibenzo[a,d]cycloheptanyl or 1-dihydronaphthalenyl each unsubstituted or substituted; or X is a group
     or a group -
     ; wherein   n is 0, 1 or 2 or two; A is hydrogen, optionally substituted C 3 -C 7 cycloalkyl or pyridinyl, pyrimidinyl, naphthalenyl, f6ranyt and thienyl, each unsubstituted or substituted; Z is naphthalenyl, thienyl, furanyl, pyrimidinyl, phenyl or pyridinyl, each unsubstituted or substituted;   a salt or stereoisomeric form thereof, novel compounds for use in said method; herbicidal compositions containing such compounds as active ingredient and methods of preparing said compounds.
Patent IT-1234680-B (IT)
Title: Method to build eyeglass front parts in which lens rims are fixed to the snag and to the bars, and eyeglass obtained with said method
Inventor: DEPPI GIANNI
IPC: G02C/
Filed: 1989-06-14
Granted: 1992-05-26
Abstract: The present invention concerns a new method to realise eyeglasses, envisaging that lens rims be fixed to the intermediate bridge and/or to the bar hinges by means of screws or other blockages. To that purpose, said bridge is provided with a pair of joints binding it to the rims, as well as with joints set on the bar hinges, wherein said joints can be linked to said bridge too, in order to form a single structure supporting said rims.
Patent IT-1198668-B (IT)
Title: Elastic leather moulding system
Inventor: NISTRI CARLA
IPC: C14B/
Filed: 1983-08-19
Granted: 1988-12-21
Abstract: The method obtains photographic images of selected areas or portions of Human Bodies, Animals, Fish, Birds, Insects Trees, Bushes, Flowers, Plants or Seeds and Psychic phenonema. An electro magnetic field is formed on which is carried the energy pattern of the area to be photographed on a film or photographic paper situated between the Positive and Negative conductor plates of the circuit. Changes in the electromotive force in the circuit are produced by an Infra red sensor exposed to the influence of the radiant energy emitted from the donor Body, via the introduction of the sample taken from the donor Body introduced to the Infra red sensor. The device can be battery or mains powered.
Patent IT-1124392-B (IT)
Inventor: MOORHOUSE DAVID
IPC: A47C1/03
Filed: 1979-10-30
Granted: 1986-05-07
Abstract: The assembly comprises a support mechanism (14, 14 min , 15, 16) which supports the armrest (10) as a cantilever, the mechanism comprising two parallel-action arms (14, 14 min ) pivoted at one end to an armrest-mounted member (16) and at the opposite end to a seat-mounted member (15), and a toothed coupling (20, 21) manually operable to lock the mechanism at various selected heights of the armrest. An independently operable device (25) releases the armrest for pivotal upward movement.
Patent LT-4039-B (LT)
Title: Pharmaceutical preparation regulating calcium metabolism
Inventor: LASAS LIUDVIKAS
IPC: A61K38/00
Filed: 1994-11-30
Abstract: Invention applies to pharmacology, namely to medicine preparations containing albumens. The preparation consists of an active material, dissolver and auxiliary materials. Calcium tannin production waste is used for the active material, i.e. low activity (4-40V/mg) calcium tannin produced of a pig thyroid gland. Ingredients of the preparation are indicated below, as a mass percentage: calcium tannin production waste (4-40 V/mg activity) 0,125- 0, 0125, dissolver 84-98, binding material 1-19, powdering material 0, 8-1. The proposed preparation is used for the treatment of diseases related to skeleton changes.
Patent LV-12868-B (LV)
Title: Perfume composition
Inventor: GERCIKOVS ILJA
IPC: C11B9/00
Filed: 2002-05-30
Abstract: Invention relates to the field of perfume industry and particularly to compositions of fragrant compounds used in producing fragrances and eau de cologne. The composition contains peppermint oil, carbonic acid extract of black bitter pepper, cedrol, scentenal, muscodrom, dihydromircenol, citral, lemon oil, ambrofikss 66 505, compositions "SP3-104/94", "Quo vadis", "HOST", "Aldehidins 127", "Sivet mÔkslýgais". All ingredients are taken in determined weight ratio, partially as solutions and partially as infusions.
Patent LV-15060-B (LV)
Title: Remedy for reinforcement of bone defects in osteoporosis
Inventor: SKAĢERS Andrejs
IPC: A61L27/12
Filed: 2015-05-18
Abstract: The invention refers to medicine, specific to orthopedic surgery. The composition of biphasic calcium phosphate bioceramic material out of synthetic hydroxyapatite and tricalcium phosphate Hap/TCP? 90/10 granules is invented and can be used as a local reinforcement of osteoporotic bone in cases of fractures.
Patent LV-12382-B (LV)
Title: Composition of liqueur ingredients
Inventor: PEIMANIS DAINIS
IPC: C12G3/00
Filed: 1998-05-06
Abstract: Invention pertains to the field of producing liqueurs and vodka drinks. The composition of liqueur ingredients contains spirituous quince juice in the amount of 3,5-7,0 vol.%, citric acid in the amount of 0,08-0,18 weight%, water-spirit solution and 65,8% sugar syrup in the amount of 25-32 vol.%. Additionally it contains spirituous black currant fruit juice in the amount of 33-44 vol.% and the spirituous chokeberry fruit juice in the amount of 7-14 vol.%. All ingredients are calculated per 1000 dal final drink.
Patent MX-168104-B (MX)
Title: Estructuras compuestas de fibra continua de policarbonato, y precursores de las mismas
Inventor: EVANS THOMAS LANE
IPC: C08G64/30
Filed: 1986-03-20
Abstract: La presente invención se refiere a una composición preimpregnada moldeable, caracteizada porque comprende un relleno que consiste esencialmetne de fibras continuas y una composición polimerizable que comprende una mezcla de oligómeros cíclicos que tienen la fórmula: en donde A1 es un radical aromático divalente y n es de 2 a aproximadamente 30.
Patent MX-168573-B (MX)
Title: Inserto inmovilizable para patas huecas de bastidor
Inventor: GABRIEL EDMOND
IPC: A47B96/06
Filed: 1986-04-24
Abstract: La presente invención se refiere a un inserto para la pata de un bastidor que tiene cuando menos una abertura, caracterizado porque comprende: una base que tiene una pestaña para quedar encima del bastidor en la abertura; una pluralidad de índices flexibles que dependen hacia abajo desde la base, con sus superficies exteriores formando sustancialmente una configuración para ser recibida deslizablemente en la abertura, en donde los extremos libres de los índices tienen levas en sus superficies internas; un obturador movible que se extiende a través del centro de los índices y hacia arriba a través de la base, para proyectarse hacia afuera y poderse mover a una posición inmovilizadora, en respuesta a una fuerza manual aplicada al extremo proyectante del obturador; teniendo dicho obturador una porción de diámetro reducido en el extremo que se extiende a través de los índices, y que está configurada para acoplarse con las levas de los índices, cuando es movida a la posición inmovilizadora, para abrir los índices hacia afuera y hasta contacto con la superficie interna del bastidor.
Patent MX-168643-B (MX)
Title: Composicion adhesiva a base de epoxi y aditivo para curarla por induccion
Inventor: EAGLE GLENN GILBERT
IPC: C08K5/22
Filed: 1987-05-19
Abstract: La presente invención se refiere a un aditivo de agente de curado, para curar por inducción composiciones adhesias a base de epoxi, caracterizado porque comprende: i) un agente de curado a alta temperatura; latente, ii) un agente de curado a temperatura intermedia, latente, iii) un agente mejorador de la resistencia en crudo, que comprende un polvo de resina termoplástica fínamente-dividido, seleccionado del grupo que consiste de polietileno de baja densidad, etilen vinil acetato, poliestireno, polivinil formal, polivinil butiral, poli(metil metacrilato, NYLON-12 y resinas de poliéster de fusión en caliente y mezclas de cualquiera de las anteriores resinas.
Patent NO-140298-B (NO)
Title: Analogifremgangsmaate for fremstilling av farmakologisk aktive acetoksimer
Inventor: TAILLANDIER GEORGES MARCEL
IPC: C07C239/00
Filed: 1975-06-24
Abstract: Analogifremgangsmåte for fremstilling av farmakologisk aktive acetoksimer.
Patent NO-151719-B (NO)
Title: Spenninnretning, saerlig for surringskjettinger
Inventor: MUELLER ANTON
IPC: F16G11/12
Filed: 1979-12-20
Abstract: SPENNINNRETNING, SÆRLIG FOR SURRINGSKJETTINGER.
Patent NO-155446-B (NO)
Inventor: BUCKE CHRISTOPHER
IPC: C12P19/12
Filed: 1980-11-05
Abstract: Isomaltulose is produced by a process in which at least the isomaltulose-forming enzyme system of an isomaltulose-forming micro-organism genus Erwinia is immobilized on calcium alginate gel and then the immobilized enzyme system is contacted with a sucrose solution to convert at least part of the sucrose to isomaltulose.
Patent NO-158789-B (NO)
Title: Fremgangsmaate ved toerking av undervannskuttede pellets avtermoplastisk harpiks.
Inventor: MILLER EDWARD WAYNE
IPC: B29B/
Filed: 1980-12-03
Abstract: Tiden for tørking av undervannskuttede pellets av termoplastiske harpikser søkes innkortet ved at der til det vandige kjølemedium som anvendes ved pelletiserings-prosessen, tilsettes en mindre mengde av et overflateaktivt middel bestående av et lkke-ionisk polyalkylenoxydaddukt. Tilsetningen har til hensikt A ytterligere redusere mengden av kjølemedium som blir tilbake pl overflaten av pelletene etter at disse har passert gjennom en strøm av trykkluft.
Patent NO-154545-B (NO)
Title: Mappe.
Inventor: PFANNKUCH WERNER
IPC: B42F15/00
Filed: 1981-11-27
Abstract: Ved en mappe for opptagelse av skrevet materiale, som er forsynt med profilskinner (3) og på disse første skyvere (6) for sperring av trætråder (5) som kan føres gjennom åpninger i profilskinnen (3), brukes til låsing av skyveren (6) i en bortlegningsstilling en kam (9). som er anordnet på profilskinnen og som dannes av et profilskinnebunnparti som er stanset ut og forløper på skrå oppad mot profilskinneenden og som muliggjør en særlig sikker låsing av et inngrepsanslag (17) som er anordnet på skyveren (6) og som ved behov kan løftes over kammen (9) av brukeren for forskyvning av skyveren (6) mot midten av profilskinnen (3).
Patent NO-162585-B (NO)
Title: Elektomagnetisk apparat, for eksempel lasergyroskop.
Inventor: PERLMUTTER MICHAEL S
IPC: G01C19/64
Filed: 1982-02-16
Abstract: Et fotonabsorberende organ (74) er innrettet til å redusere blanding av unskede reflekterte elektromagnetiske blger med de elektromagnetiske hovedbølger som forplanter seg henholdsvis i urviserretningen og mot urviserretningen i et ringlasergyroskop. Et rundt hull (54) i midten av absorpsjonsorganet tillater hovedstrålene å passere, og en vinkelstillet frontflate (75) er innrettet til å avbøye de reflekterte blger bort fra hovedbølgene. Størstedelen av de reflekterte blger som treffer fotonabsorpsjonsorganet (74,. 75) absorberes. Et fotonabsorpsjonsorgan (74) er fremstilt av lett absorberende filterglass med antirefleksjonsbelegg (70, 72) eller av beryllium-kobber (92) med et absorberende belegg (94).
Patent NO-154990-B (NO)
Inventor: BARTHE JEAN-MARIE
IPC: B06B1/18
Filed: 1982-03-12
Abstract: 1. A fluid actuated massage device, which comprises : - a body member, - a nozzle member mounted onto said body member - a membrane stretchingly mounted onto said body member, in contact onto an end of said nozzle member and defining with said body member an annular cavity around said nozzle member, - a feeding means for feeding liquid within said annular cavity, and - a liquid exhausting means in fluid connection with said nozzle member, characterised in that the membrane is stretched in pressure contact onto the end of said nozzle member at one end of said body member, and in that it comprises a supply means for an incompressible liquid under pressure in the annular chamber, and means fitted on said body member for defining a downstream chamber which forms a buffer chamber in fluid communication with said nozzle member, and provided with a liquid discharging orifice.
Patent NO-155020-B (NO)
Inventor: COSAR PAUL
IPC: F23J3/04
Filed: 1982-11-24
Abstract: Sulfur is readily and efficiently removed from solid fuel in a boiler installation which comprises a hearth for burning and thereby gasifying the solid fuel, the hearth including a grid supporting a fluidized bed of the solid fuel spread thereover, and a tubular boiler body superimposed on, and integral with, the hearth, the boiler body including a lower portion receiving the gasified fuel from the hearth, an upper portion, a common transverse wall dividing the tubular boiler body into the lower and upper portions, and a burner extending into the upper boiler body portion near the dividing transverse wall and receiving a supply of secondary combustion air. A conduit connects the lower boiler body portion to the burner for feeding the gasified fuel therefrom to the burner, and dust removing and desulfurization cyclones in the conduit remove dust and sulfur from the gasified fuel.
Patent NO-154890-B (NO)
Title: Ventilasjonshette.
Inventor: VENGE VIDAR
IPC: E04D1/30
Filed: 1984-03-13
Abstract: Ventilasjonshette for anbringelse på hustak, som skal hindre at kondens fra luftekanaler renner eller drypper ned i isolasjonen eller i rom under hetten og som er estetisk tiltalende uavhengig av takvinkelen, omfatter. a) en stort sett plateformet del (11) som er utstyrt med én eller flere gjennomgående rørstusser. (19a, 19b, 20), for tilkopling av luftekanaler under den plateformede del, og. b) en overbygning (15) som er anbrakt opnå den plateformede del (11) over rørstussene (19a, 19b, 20). og hvis øvre kant (16) danner en vinkel med den plateformede del.
Patent NO-160783-B (NO)
Inventor: HUTH ANDREAS
IPC: C07D471/04
Filed: 1984-06-20
Abstract: beta -carboline derivatives of general Formula I    <IMAGE>  (I) wherein R3 is   <IMAGE>  wherein R5 is C1-5 alkyl, R6 is lower alkyl, aralkyl, or alkoxyalkyl of up to 7 carbon atoms, and R7 and R8 are hydrogen C1-5 alkyl, or, collectively with the amido nitrogen atom, piperidino, R4 is hydrogen, C1-3 alkyl, or CH2OR9 wherein R9 is C1-3 alkyl, atoms, and RA is -COOR10    <IMAGE>   wherein R10 is hydrogen, lower alkyl, alkoxyalkyl or alkenyl of up to 5 carbon atoms, or benzyl, or X is oxygen or sulfur, and R11 and R12 each are hydrogen, lower alkyl or alkenyl or, collectively with the amido nitrogen atom, represent a hetero ring, are prepared by conventional methods and exhibit, inter alia, an effect on the central nervous system and are suitable for use as psychopharmaceuticals.
Patent NO-164131-B (NO)
Inventor: FLATAU ABRAHAM
IPC: F42B12/06
Filed: 1987-11-03
Abstract: An armour piercing projectile (10) having a carrier body (11) and a preferably high density penetrator core (12). The leading edge portion (15) of the carrier body (12) is preferably beveled and extends beyond the front end (14) of the penetrator core. Preferably encompassing the carrier body (12) is a nose shape (13) to provide relatively low aerodynamic drag during flight. The carrier body is designed to allow the projectile to be spin stabilised when fired from a suitable weapon.
Patent NO-173826-B (NO)
Inventor: JAKOBSEN PALLE
IPC: A61K31/451
Filed: 1989-04-27
Abstract: Novel piperidine compounds having the formula <CHEM>  wherein R<3> is 3,4-methylenedioxyphenyl, aryl or heteroaryl which are optionally substituted with one or more halogen, C1-6-alkoxy, optionally substituted aryloxy or aryl-C1-6-alkoxy, cyano, mono or poly halogenated C1-6-alkyl, C1-6-alkenyl, C1-6-alkyl, C3-5-alkylene or trifluoromethyl groups, R<1> is strait or branched C1-8-alkyl unsubstituted or substituted with one or more cyano, ester, dialkylamino, hydroxy, amido, halogeno, substituted or unsubstituted piperidino, morpholino, thiomorpholino, dioxolanyl, tetrahydrofuranyl C1-8-alkoxy or C3-8-cycloalkyl groups, X is hydrogen, halogen, trifluoromethyl, hydroxy, cyano or C1-8-alkoxy,  Y is O or S; provided that R<1> is not unsubstituted C1-8-alkyl, when R<3> is 3,4-methylenedioxyphenyl, aryl or heteroaryl optionally substituted with one or more C1-6-alkyl, C1-6-alkoxy, C3-5-alkylene, C3-8-cycloalkyl or aralkoxy, and at the same time X is hydrogen or halogen  and a salt thereof with a pharmaceutically acceptable acid. The novel compounds are useful in the treatment of anoxia, migraine, ischemia and epilepsy.