baber/WOPTO huggingface dataset:
Patent JP-3010216-B1 (JP)
Title: 直動関節を備えた昇降ロボット
IPC: B25J15/00
Filed: 1998-11-20
Granted: 2000-02-21
Abstract: 【要約】
【目的】  高層の建築物の壁面を高速に昇降し、はしご 車では対処できない場合あるいは避難用階段が避難の機 能を失ったりする場合に、消火活動や救助活動を行える ようにする。
【構成】  本発明の昇降ロボットは、１つの把持部を備 えたレールと、レール直動関節と、１つの把持部を備え た本体と、を備えたロボット本体と、ロボット本体に指 令して変位位置を所望の位置に制御するロボット制御装 置と、を有し、ロボット制御装置からの指令に応じて、 一方の把持部が横設部材を把持し、その状態で各関節等 が変位および復帰してロボットの姿勢が変化し、その変 化によって、他方の把持部が次の横設部材を把持した 後、一方の把持部を横設部材から外し、その状態で各関 節等が変位あるいは復帰して、ロボットの姿勢が変化 し、その変化によって、一方の把持部が他方の把持部が 把持している横設部材を把持し、この動作を順次行うこ とにより、上下に配列されている横設部材間を昇降す る。
Patent NO-333522-B1 (NO)
Inventor: WALSER ARMIN
IPC: A61P9/00
Filed: 2003-08-11
Abstract: A method of stimulating the expression of endothelial NO-synthase in a mammal, which method comprises administering a physiologically active amount of 4-fluoro-N-indan- 2-yl benzamide according to the formula (I)
Patent NO-326128-B1 (NO)
Inventor: MEREDITH DARYL S
IPC: B26D1/00
Filed: 2003-09-30
Abstract: The saw has an assembly with a blade (19) driven by a motor and connected to a base (11). A motor (20) is attached to an upper blade guard, which is connected to a pivot arm (17A). A fence assembly attached to the base has fixed (21), movable (22), and auxiliary fences. The auxiliary fence is placed behind one of the fences (21,22). The movable and auxiliary fences define supporting planes, which are parallel to each other. An independent claim is also included for method for cutting a workpiece.
Patent NO-327100-B1 (NO)
Title: Sitronsyre-salt, farmasoytisk preparat inneholdende slike samt anvendelse av disse for fremstilling av medikament til medisinsk behandling
Inventor: QUALLICH GEORGE JOSEPH
IPC: A61P25/32
Filed: 2004-07-06
Abstract: Foreliggende oppfinnelse angår en polymorf av citratsaltet til 4-(3,4-diklorfenyl)-2-[2 (4-metylpiperazin-l-yl)-benzyliden]-tiomorfolin-3-on (I) og farmasøytiske preparater derav.
Patent NO-332265-B1 (NO)
Inventor: SCHOFIELD KAREN LESLEY
IPC: A61P9/10
Filed: 2005-11-10
Abstract: Compounds represented by Formula (I): or pharmaceutically acceptable salts thereof, are inhibitors of glycogen phosphorylase and are useful in the prophylactic or therapeutic treatment of diabetes, hyperglycemia, hypercholesterolemia, hyperinsulinemia, hyperlipidemia, hypertension, atherosclerosis or tissue ischemia e.g. myocardial ischemia, and as cardioprotectants.
Patent NO-334458-B1 (NO)
Inventor: RADEWAGEN CHRISTIAN
IPC: B61G7/14
Filed: 2006-11-17
Abstract: The coupling has a coupling-shaft (1) and a linkage (2), which includes a bearing case (4), where the rear end of the shaft is connected with the linkage. The rear end of the shaft is horizontally pivotable by the bearing case at a wagon body of the railway vehicle. A shock proof unit (5) integrated in the linkage is designed such that a connection between the shaft and the linkage is released when a critical impact force transmitted by the shaft to the linkage exceeds, and the shaft partially absorbs the force transmitted to the linkage.
Patent NO-333792-B1 (NO)
Inventor: VOIMANEN JANNE
IPC: E21B19/086
Filed: 2006-12-27
Abstract: A telescopic feed beam for a rock drill includes a lower beam and an upper beam arranged to move with respect to each other in the longitudinal direction. The cross section of the lower beam is such that there is a groove-like open space at the bottom of the lower beam and a transfer cylinder between the lower beam and the upper beam is mounted in the groove.
Patent NO-338966-B1 (NO)
Inventor: PEREIRA MARIA MIGUENS
IPC: C07D487/22
Filed: 2007-06-15
Abstract: The invention relates to derivatives of porphyrin, particularly chlorins and/or bacteriochlorins, which can be used in photodynamic therapy. According to the formulas of the invention, X1, X2, X3, X4, X5, X6, X7, X8, which may be identical or different, each represent halogen atoms or hydrogen atoms. R1, R2, R3, R4, which may be identical or different, are each selected from the following groups: -OH, amino acids, -OR and -NHR and/or a chlorine atom, wherein R is an alkyl group having between 1 and 12 carbon atoms. The invention also relates to an anticancer and/or antiviral and/or antimicrobial medicament for human or animal use, which contains one or more compounds as the main active ingredient.
Patent NO-339579-B1 (NO)
Inventor: ALBERS HENDRIKUS JOHANNES MARIA
IPC: B60P3/42
Filed: 2007-08-23
Abstract: An embodiment of the present invention discloses a transport device for transporting loose cargo and fluid, including: an elongate loading floor on which loose cargo can be placed; a fluid tank to be fixed releasably to the loading floor and in which fluid can be stored, wherein the tank can be folded in longitudinal direction over the loading floor between a collapsed state in which the tank takes up a minimum loading floor area, to enable transport of a relatively large quantity of loose cargo, and an expanded state to enable transport of a relatively large amount of fluid.
Patent NO-341793-B1 (NO)
Inventor: PRESTA LEONARD G
IPC: C07K16/28
Filed: 2007-12-12
Abstract: Provided are humanized anti-CD40 antibodies and antigen-binding fragments and methods for treating disease characterized by expression of CD40 antigen.
Patent PL-140573-B1 (PL)
Title: Method of obtaining new dihydropyridine derivatives
IPC: C07D401/12
Filed: 1983-12-16
Abstract: Dihydropyridines of the formula:-and their pharmaceutically acceptable acid addition salts; whereinR is an optionally substituted aryl or heteroaryl group;R' and R<sup>2</sup> are each independently C<sub>1</sub>-C<sub>4</sub> alkyl or 2-methoxyethyl;Y is -(CH<sub>2</sub>)<sub>n</sub>- where n is 2, 3 or 4 and is optionally substituted by 1 or 2 methyl groups; andR<sup>3</sup> is an optionally substituted 5- or 6-membered heterocyclic group attached to the adjacent nitrogen atom by a carbon atom, said heterocyclic group being optionally fused to a further 5- or 6-membered heterocyclic group or to a benzene ring, said further heterocyclic group and benzene ring also being optionally substituted.The compounds are calcium antagonists useful as anti-ischaemic and antihypertensive agents.
Patent PL-165353-B1 (PL)
Title: Light pipe diffusers and method of making them
Inventor: POTTER WILLIAM R
IPC: G02B6/02
Filed: 1991-03-07
Abstract: The present invention relates to improvements on fiberoptic diffusers for use in PDT and methods of making the same. This invention discloses a fiberoptic cylindrical diffuser dispersing light outwardly in a cylindrical scattering pattern which includes a fiber with a jacket-stripped core tip, a thin layer of scattering medium coated on the bare core tip, and a sleeve member with a closed end enclosing the fiber tip without touching the scattering medium and fixed on the jacket of the fiber. The sleeve member may include a tapered head. The present invention also discloses a fiberoptic spherical diffuser radiating light outwardly in a spherical scattering pattern. The spherical diffuser comprises a fiber with a jacket-stripped core tip, a bushing member with open ends circumferentially surrounding the core tip and fixed on the jacket of the fiber, and a scattering medium enclosing a portion of the bushing member and the fiber core tip in a spherical form. <IMAGE>
Patent PL-167743-B1 (PL)
Inventor: BRZUCHALSKI WIESLAW
IPC: B29D29/06
Filed: 1992-02-12
Abstract: Złącze taśmy przenośnikowej połączonej według schematu palcowego, znamienne tym, że
między wewnętrznymi warstwami i/lub z obu stron taśmy i złącza umieszczono pasmo elastomeru
termoplastycznego i połączono warstwy według schematu połączenia palcowego, przy
czym stosunek długości palców do szerokości ich podstawy zawiera się w granicach 1:1 do 20:1
jednocześnie grubość taśmy poza złączem równa się grubości złącza.
Patent PL-168709-B1 (PL)
Inventor: KOWAL ZBIGNIEW
IPC: F24J2/04
Filed: 1992-04-15
Abstract: 1. Budowlane przekrycia łukowe do
pozyskiwania energii cieplnej, zawierające
absorbery i przezroczyste przegrody, znamienne
tym, że absorbery (2) z przegrodą
przezroczystą (4) tworzą zamkniętą przestrzeń
(5) dźwigara łukowego (1), która to
przestrzeń służy do transportu ciepła wraz z
ogrzanym powietrzem lub innym gazem.
Patent PL-170575-B1 (PL)
Title: Method of obtaining a modified fibrous material and method of dyeing it with textile dyes and modified fibrous material obtained thereby
Inventor: SCHRELL ANDREAS
IPC: D06P1/38
Filed: 1992-12-04
Abstract: A process for dyeing fibre materials with water-soluble, anionic dyes, in particular those containing a fibre-reactive group, is described, according to which the dyeing is carried out using low-electrolyte or completely electrolyte-free and/or low-alkali or completely alkali-free dye solutions (dye liquors, printing pastes) and in which a fibre material is employed which has been modified with a saturated straight-chain or branched aliphatic or cycloaliphatic compound which is optionally substituted by one or more hydroxy groups and which contains at least one primary, secondary or tertiary amino group or quaternary ammonium group and at least one hydrolysable ester group, it being possible for the aliphatic radical in this compound to be also interrupted by one or more hetero groups. The fibre material is modified by applying the aliphatic compound containing amino and ester groups to the fibre material in aqueous solution and subjecting the impregnated material to a heat treatment. In addition, some novel aliphatic compounds containing amino and ester groups are described which can be employed for the modification of the fibre material.
Patent PL-172007-B1 (PL)
Title: Method of engraving cylindrical moulds and apparatus therefor
Inventor: ACHREINER JAKOB
IPC: B41C1/05
Filed: 1993-09-27
Abstract: With the aid of a laser beam (4), a coating (8a) of lacquer residing on the surface of a hollow cylindrical, rotating metal screen (8) is removed at prescribed sample regions. The removal of the coating (8a) of lacquer inside the sample regions is performed with a laser beam (4) turned on continuously, the laser beam (4) being turned off at the end of a respective sample region within a period of time of 12 mu s to 30  mu s. Radiation retroreflected into the laser beam path at the metal screen (8) is coupled out of the laser beam path in order not to delay switching off the laser beam (4). As a result, it is possible to produce samples having particularly sharp edge structures. <IMAGE>
Patent PL-173545-B1 (PL)
Title: Method of obtaining a polysuccinoimide by thermal polymerization of amidomaleic acid and detergent composition containing same
Inventor: FREEMAN MICHAEL B
IPC: C11D1/52
Filed: 1993-10-13
Abstract: A method for producing polysuccinimide is provided. Thermal polymerization of maleamic acid at a temperature of from about 160 DEG C to about 330 DEG C produces polysuccinimide. The reaction is optionally conducted in the presence of one or more processing aids, solvents or diluents. The polysuccinimide is particularly useful as a detergent additive.
Patent PL-172697-B1 (PL)
Title: Running gear fow low-floor railway a vehicle
Inventor: BIEKER GUIDO
IPC: B61F5/30
Filed: 1993-11-15
Abstract: The invention relates to a running gear for low-platform trains with a running gear frame on which individual wheels (9) are rotatably mounted by means of one rocker (7) each and the rocker (7) is attached in an articulated fashion supporting itself by means of primary springs, the attachment of the running gear frame to the wagon body of the low-platform train being effected by two coupling rods (17) which are mounted at a distance from one another on a crossmember (1) of the running gear frame in an articulated fashion and, on the other hand, are also attached to the wagon body in an articulated fashion, the wagon body being supported on the running gear frame by means of secondary springs (15) which are mounted in pockets (16) near to the transverse ends of the crossmember (1). Transverse stops (18) which are arranged at a distance from one another in the crossmember (1) bound the transverse movement of the wagon body with respect to the running gear. The object of the invention consists in constructing the running gear in such a way that the area of the wagon body which can be walked on is continuously at a low-platform level and the wheels of the running gear can be arranged in a steerable fashion. This object is achieved in that the rocker (7) is mounted on a horizontal axle (6) arranged in the transverse direction of the running gear on a swivelling bolster (4), the said swivelling bolster (4) being attached to the running gear frame so as to be articulated about a vertical axis. <IMAGE>
Patent PL-176924-B1 (PL)
Title: Instrument for making digital measurements of motion speed especially that of rotary motion
Inventor: BLACHARSKI WOJCIECH M
IPC: G01P3/489
Filed: 1995-04-26
Abstract: The device for digital measurement of movement speed is designed especially for rotational speed measurement. It cooperates with a rotation-to-impulse converter equipped with a marked disk. The output of the converter measurement impulses is connected to the system of impulse adjustment and multiplication. The latter is connected through a programmable frequency divider to the gating input of the gating system. The register of clock impulses is connected to the buffer register of these impulses. The register of clock impulses, the buffer register and the frequency divider output of converter impulses are connected to the circuit which signals readiness and register overflow. The programmable frequency divider of converter impulses, the buffer register and the circuit which signals readiness and register overflow are connected through an interface to a computer. Characterized in that: The reference generator (5) output is connected to the inputs of the programmable frequency divider (6) and the programmable system of gating time (13). The division-selection inputs of the two devices are connected through an interface to the computer. The output of the programmable frequency divider (6) is connected through the gating circuit (4) to the input of the clock impulse register (7). The output of the programmable gating-time circuit (13) is connected through the gating circuit (14) to the input of the converter impulse register (15).
Patent PL-179011-B1 (PL)
Title: Novel phenylethyl and phenylpropyl amines
Inventor: BENGTSSON STEFAN
IPC: C07C237/06
Filed: 1994-09-16
Abstract: PCT No. PCT/SE94/00860 Sec. 371 Date Oct. 26, 1994 Sec. 102(e) Date Oct. 26, 1994 PCT Filed Sep. 16, 1994 PCT Pub. No. WO95/09835 PCT Pub. Date Apr. 13, 1995Compounds of the general formula   <IMAGE>   or pharmaceutically acceptable salts thereof, wherein Z is a saturated or unsaturated 3 to 6 carbon chain, m is 2 or 3, R1 is a hydrogen atom, or a straight or branched C1-4 alkyl group, R2, R3 and R13 are situated in the ortho, meta, or para position of the phenyl ring and are the same or different and selected from the following groups: H, OH, OR14, halogen, CO2R9, CN, CF3, NO2, NH2, COCH3,OSO2CF3,OSO2CH3,CONR10R11, OCOR12, wherein R9, R12 and R14 is a straight or branched C1-4 alkyl group, R10 and R11 are the same or different and represents hydrogen or a straight or branched C1-6 alkyl group, R is 1)   <IMAGE>    or   <IMAGE>   or   <IMAGE>   or   <IMAGE>   wherein the variables are defined in the specification,  processes for their preparation, pharmaceutical preparations containing them and the use of the compounds in the treatment psychiatric disorders.
Patent PL-177164-B1 (PL)
Title: Method of and system for recognising smooth measuring signals especially for use in electronics
Inventor: KORGUL ARTUR
IPC: G06F7/64
Filed: 1995-08-16
Abstract: The method of differentiating electric measurement signals is designed especially for voltage measurement signals. It consists in on-the-run determination of repeated differentials of the signal on the basis of digital measurements of voltage values, carried out in discrete moments of time. Unique characteristics: The measurement data are written serially in time of their inflow into the shiftable buffer (1) of the input dynamic memory, preferably a 9-position memory. Simultaneously, the stream of measurement data stored in the buffer (1) is read at every measurement interval. The data are transmitted in parallel through the data busses (2) to the inputs of the system of signal adders (3). The adders (3) transform the measurement data in parallel into digital values of the differentials of the voltage input signal. Then, the digital values of the differentials are collected at the outputs of the system of, preferably, seven signal adders (3) and written in parallel into the second buffer (4) of the output dynamic memory, preferably a 9-position shiftable memory. The operation is repeated many times, in time with the inflow of the new measurement data into the input buffer (1).
Patent PL-180786-B1 (PL)
Title: Pneumotahographic head
Inventor: PODOLEC ZYGMUNT
IPC: A61B5/087
Filed: 1996-07-02
Abstract: The invention solves the problem of elimination of rigid dams in the air flow duct and makes the measurement conditions more natural. A pneumotachograph comprises an external tube (1) having a first, bigger diameter, and on the inside thereof at least one internal tube (2) of smaller diameter situated preferably concentrically with the external tube (1). The external tube (1) of bigger diameter is shorter than the latter (1) tube whereas the orifice of the external tube (1) of bigger diameter has a closure (A) between its edge and the internal tube (2) of smaller diameter so that the air flow duct is the internal tube (2) of smaller diameter. At least one measuring orifice (B) is situated within the measuring area comprising the external wall of the tube (2) of smaller diameter, the internal wall of the closure (A) of the tube (1) of bigger diameter, the internal wall of the tube (1) of bigger diameter and the space confined within the mentioned walls.
Patent PL-180925-B1 (PL)
Inventor: RELIGA ZBIGNIEW
IPC: A61F2/24
Filed: 1996-12-21
Abstract: 1. Elastyczny stent biologicznie zespolonych za57)
stawek serca, w szczególności biologicznej protezy
zastawek aortalnej i mitralnej przeznaczony do oprawy
tylko zastawki mitralnej, składający się z tworzywowego
elementu nośnego, którego powierzchnia w
części przedsionkowej jest zaopatrzona w kołnierz,
zaś w części widzianej od stronykomory serca mający
usytuowane na łukach osi długiej dwajednakowe ramiona
o falistych krawędziach, korzystnie zbliżonych
kształtem do sinusoidy pokrytych materiałem obszyciowym
naciągniętym równomiernie na całej jego
powierzchni, znamienny tym, że wykonany na obwodzie
tworzywowego elementu nośnego kołnierz (2)
składa się z dwóch wycinków (2a, 2b), z których wycinek
(2a) ograniczony sąsiadującymi z sobą krawędziami
ramion (1a, 1b) nośnego elementu (1) jest
wykonany z elastycznego tworzywa sztucznego, natomiast
drugi wycinek (2b) kołnierza (2)jest wykonany
jedynie z materiału obszyciowego (3) pokrywającego
jednocześniewycinek(2b) i ramiona (1a, 1 b) nośnego
elementu (1), przy czym łukowate wcięcie pomiędzy
sąsiadującymi z sobą krawędziami (k1, k2) ramion
(1a, 1b) jest wyznaczone promieniem (R1) stycznym
do krawędzi (k1, k2) i kończącym się w połowie
wysokości podziałowej pomiędzy minimum ściany
elementu (1) wyznaczonym promieniem (R2) a krawędzią
(I1) podstawy stentu.
Patent PL-182809-B1 (PL)
Inventor: MIERNIK KRZYSZTOF
IPC: C23C14/35
Filed: 1997-02-04
Abstract: Sposób osadzania powłok, zwłaszcza twardych materiałów trudnotopliwych polegający
na umieszczeniu katody i anody w równoległym do ich powierzchni polu magnetycznym
i rozpyleniu ich materiału poprzez anomalne wyładowanie jarzeniowe oraz materiału anody
poprzez wyładowanie impulsowe, znamienny tym, że po załączeniu do katody i anody
urządzenia wysokiego napięcia i wywołaniu w obszarze międzyelektrodowym anomalnego
wyładowaniajarzeniowego, zmienia się w czasie mniejszym od 0,1 sekundy jego polaryzację,
a następnie inicjuje wyładowanie impulsowe w tymże obszarze międzyelektrodowym.
Patent PL-183535-B1 (PL)
Title: Control system for an actuator in particular that used to actuate a safety catch for vehicle door locks
Inventor: GIULIANI BRUNO
IPC: E05B65/36
Filed: 1997-03-28
Abstract: The driver (19) includes, in series with the motor (11), a two-way solid-state switch (23), the trigger voltage of which is supplied via a resistor (27) connected between the control terminal (26) of the two-way switch (23) and the motor (11). When the safety lock is operated electrically, the supply voltage is supplied to one of the inputs (5, 6) of the driver (19) to trigger and so close the two-way switch (23) and supply the motor (11) normally. In the absence of the electric open/close command, the two-way switch (23) is open, and the motor (11) finds an open circuit at its terminals, so that, when the safety lock knob is operated manually, the motor (11) rotates without generating any counter-electromotive force and, hence, with substantially no resistance. <IMAGE>
Patent PL-194118-B1 (PL)
Title: Novel n-aryl piperidine compounds, method of obtaining them and pharmaceutic composition containing such compounds
Inventor: PEGLION JEAN-LOUIS
IPC: C07D411/04
Filed: 1998-03-26
Abstract: N-Aryl piperidine derivatives of formula (I), their racemic mixtures, optical isomers and acid addition salts are new. m = 1-5; n = 1 or 2; R = H, 1-5C alkyl or aryl(1-5C) alkyl; E = H or Me; Ar = bicyclic heteroaryl (optionally substituted by halo); and A = adamantyl or bicyclic aryl or tricyclic heteroaryl (both optionally substituted).
Patent PL-187756-B1 (PL)
Title: Halogenopyrimidines and their application as pesticides
Inventor: HEINEMANN ULRICH
IPC: C07D413/12
Filed: 1997-01-15
Abstract: PCT No. PCT/EP97/00151 Sec. 371 Date Jul. 16, 1998 Sec. 102(e) Date Jul. 16, 1998 PCT Filed Jan. 15, 1997 PCT Pub. No. WO97/27189 PCT Pub. Date Jul. 31, 1997Compounds of the formula (I) in which A represents optionally substituted alkanediyl, R represents in each case optionally substituted cycloalkyl, aryl or benzo-fused heterocyclyl, E represents -CH= or nitrogen, Q represents oxygen, sulphur, -CH2-O-, a single bond, or a nitrogen atom which is optionally substituted by alkyl, and X represents halogen.
Patent PL-187365-B1 (PL)
Inventor: MROZIEWICZ BOHDAN
IPC: G02B27/44
Filed: 1998-08-24
Abstract: 1. Sposób wytwarzania quasi - kołowej
siatki dyfrakcyjnej, za pomocą wiązki
laserowej, znamienny tym, że podłoże na
któiym ma zostać wytworzona siatka dyfrakcyjna
pokryte warstwą fotorezystu,
umieszcza się w polu interferujących ze
sobą laserowych wiązek światła i oświetla
poprzez maskę o zadanym kształcie umieszczoną
pomiędzy tym polem interferencyjnym
a powierzchnią podłoża, a następnie
podłoże to poddaje się cyklicznemu obrotowi
i postojow
Patent PL-189726-B1 (PL)
Title: Analoques of illudin useful as anticarcinogenic agents
Inventor: MCMORRIS TREVOR C
IPC: A61K9/08
Filed: 1997-07-14
Abstract: The present invention provides illudin analogs of general formula (I) where R1 is (CH2)n-X-Y or H; n is 0 to 4; X is O or S or N or absent; and Y is an optionally substituted (C1-C8)alkyl, (C6-C10)aryl, (C6-C10)aryl(C1-C4)alkyl or cyclo(C3-C6)alkyl optionally comprising one or more heteroatoms; a monosaccharide, an amino acid residue, or H when n is 2-4; R2 is absent; or R1 and R2 together comprise a 5-7-membered cyclic ring; R3 is (C1-C4)alkyl or H; R4 is H, SCH2CO2(C1-C4)alkyl, O-(C5-C12)aryl or -S-(C5-C12)aryl; R5 is H, OH or absent; R6 is (C1-C4)alkyl or absent; R7 is OH or OSi((C1-C4)alkyl)3; or R6 and R7 together are ethylenedioxy; R8 is optionally substituted (C1-C4)alkyl; and the bonds represented by ----- are individually present or absent. The invention further provides dimers comprising analogs for formula (I).
Patent PL-193064-B1 (PL)
Inventor: JONCZYK ANDRZEJ
IPC: C07C255/34
Filed: 1999-03-05
Abstract: 1. Podstawione 1-chloro-6-cyjanobicyklo[4.1.0]-
hept-3-eny i 2-chloro-4-cyjanotricyklo[3.2.1.02,4]-
okt-6-eny o wzorze ogólnym 1, w którym R1 i R4
oznaczają atom wodoru lub grupę fenylową,
R2 i R3 oznaczają atom wodoru lub niższą grupę
alkilową C1-C4, lub R2 i R3 łącznie oznaczają
części pierścienia benzenowego, X oznacza
grupę metylenową lub atom tlenu, a n = 0lub 1.