baber/WOPTO huggingface dataset:
Patent HU-202653-B (HU)
Inventor: KILLY TEREZ
IPC: G01N33/52
Filed: 1989-06-27
Abstract: A találmány tárgya diagnosztikai készlet vérplazma véralvadás XIII-as faktorának (FXIII enzim) meghatározására, az UV-kinetikus teszt reagenseinek felhasználásával, amely abban áll, hogy az aktivált FXIII-enzim glutamin-szubsztrátjaként defoszforilált-szukcinil-P-kazeint és vakreagens etilénglikol-bisz-(3-aminoetil-éter)-NN ,Ν’,Ν’-tetraecetsav tartalmaz. A találmány tárgya továbbá a fenti készlet előállítása. < CO IO <O CM O CM _ X A leírás lerjedelme: 5 oldal rajz nélkül -1-
Patent HU-191638-B (HU)
Title: Tin-lead solders for soldering contact materials
Inventor: MALIKOWSKI VILLI
IPC: B23K35/28
Filed: 1983-09-23
Abstract: 1. The use of alloys consisting of from 20 to 35% by weight of copper, from 0.1 to 5% by weight of palladium, and the remainder silver, for directly soldering oxide-containing silver contact materials, particularly silver tin oxide, on contact carriers.
Patent HU-187474-B (HU)
Inventor: TIHANYI ENDRE
IPC: C07D487/04
Filed: 1981-11-18
Abstract: Verfahren zur Herstellung neuer Spiro-Derivate des Pyrazolo(1,5-D)(1,2,4)triazin Ring-Systems der allgemeinen Formel I, worin R unter1 und R unter 2 verschieden sein koennen, ein Wasserstoffatom oder eine Alkyl- Gruppe mit 1-4 C-Atomen bedeuten koennen, R unter 3 ein Wasserstoffatom,eine lineare oder verzweigte Alkyl-Gruppe mit 1-4 C-Atomen, eine Alkyl- Gruppe mit 2-5 C-Atomen, oder eine Benzyl-Gruppe, R unter 4 ein Wasserstoffatom, eine lineare oder verzweigte Alkyl-Gruppe mit 1-4 C-Atomen, eine Cycloalkyl-Gruppe mit 4-6 C-Atomen, eine nicht substituierte Benzyl-oder eine Mono oder Polyhalo-benzylgruppe, und n eine Zahl, 4-8, bdeuten kann. Erfindungsgemaess wird ein entsprechend substituiertes Pyrazol-carbonsauere-hydrazid-Derivat mit einem cyclischen Keton umgesetzt und das Reaktionsprodukt der Formel I wird gewuenschtenfalls Alkyliert. Die neuen Verbindungen der Formel I besitzen wertvolle ZNS-Aktivitaeten.
Patent HU-199976-B (HU)
Inventor: KISELEV VLADIMIR G
IPC: F28D15/00
Filed: 1987-09-02
Abstract: A találmány tárgya hőcserélő, amelynek belső teret (2) kör bezáró köpenye (1, van, amelyben csőlemezzel ellátott hőcserélő bordáscsöveket (4) magában foglaló térrész van kialakítva, amelyet a csőlemez egymástól elszigetelt hűtendő közeg kamrára és melegítendő közeg kamrára oszt ketté, és a kamrák ellenáramú áramoltatásnak megfelelő elrendezésű bemenő- és kimenőcsonkokkal (8, 10) vannak ellátva. A találmány lényege, hogy a kamrákban a köpenyfalak (12, 13) belső felületei és a hőcserélő bordáscsövek (4) köpenyfal (12, illetve 13, felé néző külső felületei között két-két csatorna (14, 15) van kialakítva, úgy, hogy az egyik kamra csatornáit (14, 15) a másik kamra megfelelő csatornájától a csőlemez választja el, és a kamrák legalább két-két csappantyúval (20, 221 vannak ellátva, ahol a melegítendő közeg kamra csappantyúi 120, 22) a hűtendő közeg kamra egy-egy csappantyúja fölött, szinkron működtethető tengelyeken (24, 25), a hútendó közeg kamra megfelelő csappantyújával együttforgó csappantyúpárt alkotva vannak elrendezve, továbbá a hőcserélő bordáscsöveket (4) magá- ban foglaló térrész a bemenő-, illetve a kimenöcsonkok (8, ill. 10, felöli oldalakon válaszfalakkal (18, 19) van lezárva, amelyek a melegítendő és a hűtendő közegek áthaladását a belső téren (2) akadályozzák.  FIE.2 HU 199976 .4 leírás terjedelme: 7 oldal, - rajz, 10 ábra -1-
Patent HU-194564-B (HU)
Title: Process for producing gamma carboline derivatives and pharmaceutical compositions containing them
Inventor: ABOU-GHARBIA MAGID A
IPC: A61K31/495
Filed: 1986-09-15
Abstract: The compounds of formulain which R<sup>1</sup> is hydrogen, halogen, hydroxy, or alkyl; R<sup>2</sup> is substituted or unsubstituted pyridinyl, pyrazinyl, quinolinyl or quinoxalinyl and said substituents are alkyl, alkoxy, alkoxycarbonyl, halogen, cyano or nitro; R<sup>5</sup> and R<sup>6</sup> are independently, hydrogen, alkyl, phenyl, halophenyl, methylphenyl, trifluoromethylphenyl, cyanophenyl or nitrophenyl, with the proviso that one of R<sup>5</sup> and R<sup>6 </sup>is other than hydrogen; and n is an integer from 1 to 7; and the pharmaceutically acceptable salts thereof, are antipsychotic and anxiolytic agents.
Patent HU-203728-B (HU)
Title: Herbicide and growth-controlling compositions containing 1-carbamoyl-2-pyrazoline derivatives as active components and process for producing the active components
Inventor: WELLINGA KOBUS
IPC: C07D409/12
Filed: 1987-10-27
Abstract: The invention relates to a herbicidally active compound of the general <CHEM>  wherein R1, R2, R3 and R4 are equal or different and repre;sent hydrogen atoms, alkyl groups having 1-6 carbon atoms, cycloalkyl groups having 3-6 carbon atoms or alkoxycarbonyl groups having 2-5 carbon atoms; R5 is a hydrogen atom, an alkyl group or haloalkyl group having 1-8 carbon atoms, a substituted or non-substituted phenyl group, a substituted or non-substituted heterocyclic group, or an alkenyl, alkynyl or alkoxycarbonyl group having 2-5 carbon atoms; and wherein two of the groups R1, R2, R3, R4 and R5 together may form a straight or branched alkylene group having 3-5 carbon atoms; Ar is a phenyl group, a phenyl(C1-C4)alkyl group or a heteroaryl group; R6 is a hydrogen atom or substituent to Ar, which substituent, in case Ar is a phenyl or phenylalkyl group, is attached to the phenyl group in the ortho position with respect to the sulphonyl or sulphonylalkyl group, and which substituent is selected from the following atoms and groups: a halogen atom; a nitro group; an alkoxycarbonyl group that has 2-8 carbon atoms and is unsubstituted or substituted with one or more hydroxy or C1-C4 alkoxy groups; and an alkyl, hydroxyalkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulphonyl and haloalkylsulphonyl group having 1-6 carbon atoms; and R7 represent a hydrogen atom or one or two halogen atoms or C1-C4 alkyl groups.
Patent HU-195323-B (HU)
Inventor: TEJFALUSSY ANDRAS
IPC: G01B21/00
Filed: 1984-12-18
Abstract: A találmány szerinti eljárás során az üzemi táblákon folytatott termesztéssel egyidőben táblaméretű multifaktoriális kísérleti méréseket hajtunk végre, amelynek során a kezeléseket antirandom elrendezés szerint valósítjuk meg. A betakarításkor ún. visszakalibrálásos módszer segítségével az üzemi táblák (nagy területek) termésmérési eredményeit vonatkoztatjuk a kisebb területek (kísérleti parcellák) mérési eredményeire és az íly- módon történt átszámítást követően, célszerűen zavarkompenzációs számítási módszer együttes alkalmazásával határozzuk meg az optimális termesztési feltételeket, ezeken keresztül a talaj, ill. területhasználat optimumát. A találmány tárgya továbbá egy egyszerű talajmintavevő eszköz, amelynek lényege egy körmökkel (25) ellátott, alsó felén felhasított cső (24), amelyben forgó csiga (26) szállítja fel a talajmintákat. (1., 3 ábra)  lábra ,20  -1-
Patent HU-205593-B (HU)
Title: Process for protecting underground waters with zeolite
Inventor: CSERY PAL
IPC: C05G3/00
Filed: 1987-12-29
Abstract: In areas where soils have poor adsorption capacity, subsoil waters may be protected against harmful action of agricultural chemicals by the addn. to the soil of zeolites at a rate of 10-100 kg/ha
Patent IT-1234317-B (IT)
Title: Automatic slab movement system, particularly for marble block cutting machines and its activating equipment.
Inventor: RAVASIO PIETRO ANGELO
IPC: B28D7/04
Filed: 1989-09-20
Granted: 1992-05-15
Abstract: This system of automatic slab movement, particularly for slabs produced by "four column cutters" for marble blocks, consists of pre-adjusting the shelf of a slab collecting wagon to the same level from which the slabs are withdrawn, so as to accomplish a transfer on a single horizontal plane. This transfer is accomplished in combination with a rotation of 180 degrees of every slab withdrawn, so as to permit re-positioning next to other slabs with continuity of grasping and with a single translational movement. A first way of effecting such translatory movement is carried out by means of a pair of arms articulated on the overhead planes, following vertical plane axes; said arms are equipped with their respective terminal ends, the pivot of one of which is non-communicating with the support structure and the other connected with cantilevered gripping mechanisms. These arms are mechanically locked between themselves, by means of chains or the like, which are engaged in gear-pulleys, integrally connected to the fixed structure, and to the pivots of these arms, in such a relationship, so as to be able to confer immobility along the direction horizontal to the grasping mechanisms, independent from variations in the horizontal direction of the arms from which these means are supported. This said conferred directional immobility is handled by an initial pulley fixed to a supporting arms cross-bar, to allow a toothed belt to wrap around itself, for reasons of variations in the direction of a first arm around a vertical axis, in common with the cited fixed gear-pulley; said turning determines the rotation of a pin, equipped with an intermediary gear-pulley connected to the cited fixed pulley and united to the second arm. Said second arm thus undergoes angular movement, proportional to the angular movement of the first arm, transferring, by means of a "gear-pulley fixed to itself - toothed belt - final directional gear-pulley of horizontal pivotal direction", the angular movement received by the pivotal support pin of the cantilevered grasping mechanism, called support pin, being connected to a moveable final pulley equal to the initial fixed one, and to the intermediary moveable gear-pulley, being equal to the intermediary fixed gear-pulley. The movement of the arms is managed by a common motorized apparatus, preferably consistent with a common electric motor, connected to a reducer of the unlimited screw type. The movement of the cantilevered grasping means is preferably activated with motorized means analogous to those of the movement of the arms, but different. These grasping means preferably consist of a variety of suction cups, with internal depression, controlled by an appropriate central apparatus. A second way of translation is carried out by means of coupling the cantilevered grasping mechanisms, to a horizontal arm sliding on its own axis, positioned at a level common to the slab repositioning platform.
Patent IT-1174805-B (IT)
Title: Heat exchanger for use between fluids, e.g. oil, and air
Inventor: FERRONI RENATO
IPC: F28D/
Filed: 1983-06-30
Granted: 1987-07-01
Abstract: A flat tubular element (1) receives a first heat exchange fluid, having a series of integral fins (3). The fins are arranged on the major sides of the flat tube, turned crosswise to the direction in which the element extends, over the full width. In the region of the extremities, the tubular element has parts (4) devoid of fins. The depth of these parts corresponds to the max. height of the fins. The minor sides of the tubular element have wedge-shape projections which serve as lips for a flow of a second fluid.
Patent LV-14046-B (LV)
Title: Three dimensional writing and developing method of optical information
Inventor: MEDVIDS ARTURS
IPC: H01L21/02
Filed: 2009-09-29
Abstract: The invention is related to the field of technical physics and can be used for writing and developing of optical information. A possibility of information writing in bulk using optical radiation induced inversion of semiconductor conductivity type is shown. Selective chemical etching is used to develop information, as a result of etching of one conductivity type semiconductor.
Patent LV-11099-B (LV)
Title: Shelf for storing and systematizing stationery
Inventor: KLAVINS VILIS ARNOLDS
IPC: A47B43/04
Filed: 1994-05-20
Abstract: This invention is related to auxiliary means of systematisation and the maintenance of paper, envelopes, etc. documents. The proposed mobile compact shelf (fig.1), which can be comfortably placed on a writing desk, contains the upper and lower plates that are fixed at a certain distance from each other by the end walls fastened with screws. All together, these components compose a frame, in which there are partition walls, plates and dividers fixed for splitting the shelf into compartments of different size. The partition walls and plates are embedded in frame grooves, providing precision in definite places. The upper surface of the shelf can be covered with a decorative plate, while the lower can be covered with a felt layer. The partition walls can additionally be removed from the embedding grooves.<IMAGE>
Patent MX-174533-B (MX)
Inventor: EVANS JOHN MORRIS
IPC: C07D311/70
Filed: 1982-09-23
Abstract: Compounds of formula (I):   <IMAGE> (I)  wherein: one of R1 and R2 is hydrogen and the other is selected from the class of alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy, alkylhydroxymethyl, nitro, cyano, chloro, trifluoromethyl, alkylsulphinyl, alkylsulphonyl, alkoxysulphinyl, alkoxysulphonyl, alkylcarbonylamino, alkoxycarbonylamino, or aminosulphinyl, aminosulphonyl or aminocarbonyl, the amino moiety being optionally substituted by one or two alkyl groups, or alkylsulphinylamino, alkylsulphonylamino, alkoxysulphinylamino or alkoxysulphonylamino, or ethylenyl terminally substituted by alkylcarbonyl, nitro or cyano or -C(alkyl)NOH or -C(alkyl)NNH2, the alkyl groups or alkyl moieties of alkyl-containing groups having from 1 to 6 carbon atoms; one of R3 and R4 is hydrogen or alkyl having from 1 to 4 carbon atoms and the other is alkyl having from 1 to 4 carbon atoms, or R3 and R4 together with the carbon atom to which they are attached are spiroalkyl having from 3 to 6 carbon atoms; R5 is hydrogen, alkyl having from 1 to 3 carbon atoms or acyl having from 1 to 8 carbon atoms; and n is 1 or 2; the lactam group being trans to the OR5 group; have anti-hypertensive activity and are of use in the treatment of high blood pressure.
Patent NO-140161-B (NO)
Title: Plantemaskin.
Inventor: LOEFGREN STIG GUNNAR
IPC: A01G23/04
Filed: 1976-04-12
Abstract: Plantemaskin.
Patent NO-154227-B (NO)
Inventor: GRAAF THEODORUS FRANCISCUS MAR
IPC: C07C5/367
Filed: 1980-07-04
Abstract: Process for preparing an alkylbenzene by dehydrogenating the corresponding alkenylcyclohexene in the presence of a catalyst comprising a noble metal on a non-acidic carrier, the reaction being initially conducted for a minimum of 1 hour between 200-275  DEG C and subsequently between 275-450  DEG C.
Patent NO-150560-B (NO)
Title: 6,6`-oksybis-halogensubstituert-pyron-derivater og fremgangsmaae for fremstilling derav
Inventor: BRENNAN THOMAS MOTT
IPC: A23L27/10
Filed: 1982-06-03
Abstract: 6,6'-oksybis-halogensubstituert-pyron-derivater . og fremgangsmåte for fremstilling derav.
Patent NO-151843-B (NO)
Title: Anordning for paatenning av en fakkel
Inventor: LEROUGE ANDRE
IPC: F23Q13/00
Filed: 1982-07-02
Abstract: En anordning for antennelse av en fakkel (1) ved hjelp av pyrotekniske ladninger anordnet i hus (4) plassert i en første avstand på 1-10 m fra den geometriske akse av fakkelen (1) og i en andre avstand på 2-20 m under fakkelens åpning (3), hvilket hus er forsynt med et deksel som kan beveges fra en lukket posisjon hvori patronene i huset (4) inneholdes i et termisk isolert kammer, til en åpen posisjon hvor hver patron er innrettet mot et valgt punkt (7) lokalisert på fakkelens akse i en tredje avstand på 1-10 m ovrer fakkelens åpning (3), idet den andre avstand er større enn den tredje avstand og hvor den første, andre og tredje avstand velges på en slik måte at a/(b+o) har en verdi som ligger mellom tangens 45° og tangens 20°, idet a betyr den første avstand, b den andre avstand og c den tredje avstand.
Patent NO-172744-B (NO)
Inventor: TEUTSCH JEAN GEORGES
IPC: C07D513/04
Filed: 1986-07-24
Abstract: The derivatives in question are the products of formula I <IMAGE>  R = either <IMAGE> Ra = an organic group; <IMAGE> R'A and R'B are either a hydrogen atom  or an alkyl radical;  ZA = single bond, sulphur, optionally oxidised, or oxygen, R3A = in particular, aryl, optionally substituted, quaternary ammonium, acetyl, carbamoyl, alkoxycarbonyl, alkyl, haloalkyl, nitrile or azido;  R4 = H or OCH3; A = in particular, H, alkali metal equivalent, ester or CO2A; CO2<(-)>;  n2 = integer equal to 0, 1 or 2; and the salts of the products of formula IA with inorganic or organic acids.
Patent NO-166168-B (NO)
Inventor: GUSTAVSSON LENNART
IPC: G21F9/00
Filed: 1988-05-06
Abstract: PCT No. PCT/SE87/00420 Sec. 371 Date Mar. 17, 1989 Sec. 102(e) Date Mar. 17, 1989 PCT Filed Sep. 17, 1987 PCT Pub. No. WO88/01901 PCT Pub. Date Mar. 24, 1988.Method for cleansing gas from solid, liquid and/or gaseous contaminants, by bubbling the gas through a liquid bath (32), and by introducing the incoming gas into a distribution means (14) and causing the gas to pass in part-streams through a multiple of inlet orifices (64) located at progressively increasing depths beneath the surface (34) of the liquid (32). With increasing inlet pressure an increasing number of inlet orifices (64) are utilized for an increasing number of part-streams. The gas flow is passed from respective inlet orifices (64) through connecting means (24, 26, 28) to outlet orifices (31) located at a considerably higher height level (h) than corresponding inlet orifices (64). The gas flow is caused to flow out through venturi nozzles (28) and/or to strike against impinger or striking surfaces (39) with a minimum pressure drop corresponding to said height differential (h). In this way full operational pressure is immediately achieved, as soon as gas is passed out through any of the inlet orifices (64), and an intense mixing of gas and liquid as well as a high cleansing efficiency are guaranteed.
Patent NO-180069-B (NO)
Inventor: INGWALL RICHARD T
IPC: G03F7/00
Filed: 1988-08-12
Abstract: Volume phase holograms and other holographic elements which include microscopic areas of a material having an index of refraction different from that of the holographic fringes.
Patent YU-43574-B (YU)
Title: Process for making penem derivatives
IPC: C07D405/12
Filed: 1984-06-08
Abstract: Certain substituted-2-penem-3-carboxylic acid compounds, and pharmaceutically-acceptable salts thereof, can be prepared from the appropriate xanthate or trithiocarbonate by desulfurization, followed by halogenation and ring closure. The corresponding desulfurized and halogenated intermediates are disclosed.
Patent YU-46659-B (YU)
Title: Elektronski mtk prijemnik sa predselekcijom
Inventor: MILICEVIC M
IPC: H04B3/54
Filed: 1985-10-15
Abstract: ELEKTRONSKI MTK PRIJEMNIK SA PREDSELEKCIJOM, naznačen time, što je fazni vod vezan preko kondenzatora (C1) i otpornika (R1) na aktivan filtar (AO1, AO2) čiji izlaz je vezan na ulaz S integrisanog kola (IC1) a čiji je izlaz vezan na R ulaze integrisanih kola (IC2, IC4, IC5), i sekundarni naizmenični napon a izlaz filtra (AO1, AO2) se preko I kola (A1) vezuje za brojač (IC2) žiji izlazi su vezani na brojače (IC4, IC5) na koje su preko invertora (N12-N19) vezani bistabilni izvršni relei (RE1, RE2).
Patent YU-47385-B (YU)
Inventor: TRIPKOVIC D
Filed: 1990-12-24
Abstract: STATIČKI PREKIDAČ ZA NAIZMENIČNU STRUJU, POSEBNO ZA POKRETANJE ELEKTRIČNIH MOTORA, koji se sastoji iz prednje ploče 1, na kojoj se nalaze preklopnik PR1, led-diode 3, 4, 5 i 6, tasteri 7 i 8, dok je ploča 1 pričvršćena vijcima 9 za štampanu ploču na kojoj su povezani elementi statičkog prekidača, pri čemu je elektromotor 13 preko prekidača spojen na konektor Lx2, a preko zaštite 15 od neregularnog uslova rada spojen je konektor Lx1 na statički prekidač, naznačen time, što se sastoji od otpronika (R1, R3) koji su spojeni na optokapler (IC2), a otpornik (R1) je spojen sa konektorom (Lx1), dok je optokapler (IC2) s jedne strane spojen za integralno kolo (IC3), a sa druge strane na tranzistor (T2) i na rele (d1), koje je spojeno na tranzistor (T3) i na konektor (Lx1), pri čemu je emiter tranzistora (T3) spojen na rednu vezu diode (LD4) i otpornika (RD), dok je baza tranzistora (T3) spojena preko otpronika (R20) na bazu tranzistora (T2), i što je optokapler (IC1) spojen preko otpornika (R4) za masu (GND), a preko otpornika (R2) za konektor (Lx1), dok je sa druge strane spojen preko otpornika (R16) za rele (di) i za tranzistor (T2), a preko otpornika (R15) na optokapler (IC2), pri čemu je optokapler (IC1) povezan preko otpornika (R23) za masu (GND) i za integralno kolo (IC3), koje je prko otpornika (R22) vezano za plus pol izvora stabilisanog napona, i što je emiter tranzistora (T2) preko otpornika (R17, R18, R19) spojen za optokaplere (IC4-IC9), dok su optokapleri (IC4, IC5) preko otpornika (R6, R7) spojeni za triak (TC1) koji je preko kondenzatora (C2) i otpornika (R12) spojen za konektor (Lx2) i za konektor (Lx1), dok su optokapleri (IC6, IC7) preko otpornika (R8, R9) spojeni za triak (TC2) koji je preko kondenzatora (C3) i otpornika (R13) spojen na konektor (Lx2) i za konektor (Lx1) pri čemu su optokapleri (IC8, IC9) preko otpornika (R10, R11) spojeni za triak (TC3), koji je s jedne strane preko kondenzatora (C4) i otpornika (R14) spojen za konektor (Lx2), a sa druge strane za konektor (Lx1) i što je za konektor (Lx1) spojena led-dioda (LD1) za indikaciju kvara.
Patent ZA-889420-B (ZA)
Title: Thioformamide derivatives
Inventor: COOK DAVID CHARLES
IPC: C07C327/38
Filed: 1988-12-15
Abstract: Therapeutically useful thioformamide derivatives of the formula: <CHEM> wherein R represents alkyl, Ar represents optionally substituted phenyl group, Y represents ethylene, methylene or a valency bond, and X represents carbonyl, hydroxymethylene, >C=NOR<1>, >C=NN(R<1>)2 or >C=NN(R<1>)CON(R<1>)2 in which R<1> represents hydrogen or optionally substituted alkyl, benzyl, phenethyl, 1-naphthylmethyl, 2-naphthylmethyl or pyrid-3-ylmethyl or two R<1> substituents on the same nitrogen atom may together form optionally substituted alkylene, and salts thereof, processes for their preparation and compositions containing them are described.
Patent ZA-895546-B (ZA)
Title: New solid porous unitary form comprising micro-particles and/or nano-particles,and its preparation
Inventor: COURTEILLE FREDERIC
IPC: A61K9/19
Filed: 1989-07-20
Abstract: Novel solid and porous single-dose preparation containing microparticles and/or nanoparticles, and its preparation. This novel solid single-dose preparation is applied to the administration of therapeutically active substances, nutritional agents, diagnostic agents or cosmetic agents.
Patent ZA-906049-B (ZA)
Title: 1-(pyridinylamino)-2-pyrrolidinones,a process for their preparation and their use as medicaments
Inventor: EFFLAND RICHARD C
IPC: C07D409/14
Filed: 1990-08-01
Abstract: This invention relates to 1-(pyridinylamino)-2-pyrrolidinones of the formula <CHEM> wherein R1, R2 and R3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl or R2 and R3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl or heteroaryl cycloalkane; X is hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m is an integer of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and where appropriate the geometrical, optical and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics, for enhancing memory and for the treatment of Alzheimer's disease.