baber/WOPTO huggingface dataset:
Patent EP-0166331-A3 (EP)
IPC: C07D271/10
Filed: 1985-06-15
Abstract: Substituierte Phenoxyalkanolaminopropanole der allge­
meinen Formel I 
  
in der  
R¹ ein Wasserstoff- oder Halogenatom, eine Alkyl- oder Alk­
oxygruppe mit jeweils 1 bis 4 Kohlenstoffatomen, eine Amino­
gruppe oder Acylaminogruppe,  
R² und R³, die gleich oder verschieden sein können, ein Was­
serstoffatom oder eine Alkylgruppe mit 1 bis 3 Kohlenstoffato­
men,  
R⁴ eine Phenylgruppe oder eine substituierte Phenylgruppe, 
die durch ein Halogenatom, eine oder zwei Alkoxygruppen, 
eine Methylendioxy-Gruppe, eine Hydroxy-Gruppe substituiert 
sein kann, eine Pyridylgruppe, eine Indolyl-Gruppe, eine gege­
benenfalls durch ein Halogenatom substituierte 1,2-Benziso­
xazolylgruppe, den Benzimidazol-2-on-, 1,4-Benzodioxan­
oder Benzoxolan-Rest,  
X ein Sauerstoffatom oder eine Einfachbindung und  
n die Zahlen 0, 1, 2 oder 3 bedeuten,  
sowie ihre Säureadditionssalze, blockieren sowohl die Alpha- 
als auch die Betarezeptoren des adrenergen Systems und sind 
daher zur Behandlung von Hypertonie, Durchblutungsstörun­
gen, Angina pectoris und Coronarinsuffizienz geeignet.
Patent EP-0148790-A3 (EP)
IPC: G10K1/064
Filed: 1985-01-11
Abstract: In an electric bell for use in a telephone handset a pair 
of strikers (35, 36) are mounted for reciprocatory movement 
into and out of striking engagement with the inner surface of 
the bell (37) by the armature (32) of a linear electric motor (25, 
26, 27, 28, 32) mounted inside the bell.
Patent EP-0156583-A3 (EP)
IPC: G01N25/20
Filed: 1985-03-13
Abstract: An enthalpy measuring arrangement, for measuring the 
heat content of a substance which may in the liquid phase, 
vapour phase or a mixed phase of liquid and vapour, com­
prises a first enthalpy calculating module (20) for calculating 
the enthalpy (h mix ) of the substance when in a two-phase 
condition, the module utilising a plurality of discrete function 
blocks. The specific volume of the overall mixture is calcu­
lated using a density transmitter (16). Tables are utilised to 
obtain the specific volumes of the gas and vapour parts of 
the substance on the basis of a measured temperature (T) 
for the substance as measured by a temperature transmitter 
(14). These values are in turn used to obtain a quality value 
which is multiplied by a value representing the difference 
between the enthalpies of the vapour and liquid components 
of the substance to obtain the overall enthalpy (h mix ) of the 
mixture. Another module (30) comprising a plurality of func­
tion blocks generates the enthalpy (h sup ) of the substance 
when it is superheated or entirely in the vapour phase. A 
selector module (40) is connected to the mixed and vapour 
phase enthalpy calculating modules (20, 30) to determine 
which of the modules should be utilised and to calculate the 
overall enthalpy (h) of the substance regardless of its phase.
Patent EP-0165035-A3 (EP)
Title: Apparatus for the detection and measurement of suspended particulates in molten metal
IPC: G01N27/07
Filed: 1985-06-10
Abstract: @ An apparatus and method for the detection and measurement in a molten metal sample of suspended particulate comprises a container having a composite wall including concentric electrically conducting outer and inner walls (10) and (12) and a disc (14) of refractory material having a passage (16) of predetermined size therethrough providing communication between the inside and outside of the container. In use, molten metal is pumped through the passage (16) so as to establish a current path from the inner wall through the passage to the out wall. A current is passed along the current path, and voltage changes are measured as indicating passage of suspended particulates through the passage.
Patent EP-0182746-A3 (EP)
IPC: C07D405/06
Filed: 1985-11-11
Abstract: Neue 1-Carbamoyl-3-phenyl-4-benzyl-Δ²-pyrazoline 
der Formel 
  
worin  
R₁ und R₂ unabhängig voneinander Wasserstoff, Halo­
gen, Trifluormethyl, C₁-C₄-Halogenalkoxy mit 1 bis 7 
Halogenatomen oder C₁-C₄-Halogenalkylthio mit 1 bis 7 Ha­
logenatomen;  
R₃ Wasserstoff, Halogen, C₁-C₄-Alkyl, C₁-C₄-Halogenal­
kyl mit 1 bis 7 Halogenatomen, C₁-C₄-Alkoxy, C₁-C₄-Halogen­
alkoxy mit 1 bis 7 Halogenatomen oder Alkoxycarbonyl mit 1 
bis 4 C-Atomen im Alkylteil;  
R₄ Wasserstoff, Halogen, C₁-C₄-Alkyl oder Trifluorme­
thyl;  
R₅ Wasserstoff, Halogen, C₁-C₄-Alkyl, Trifluormethyl 
oder C₁-C₄-Alkoxy, und  
R₆ und R₇ unabhängig voneinander Wasserstoff, Halo­
gen oder Trifluormethyl oder R₆ bzw. R₇ zusammen mit R₅ 
Methylendioxy  
bedeuten; Verfahren zur Herstellung dieser Verbindun­
gen sowie diese enthaltende Mittel zur Bekämpfung von In­
sekten und Vertretern der Ordnung Akarina, speziell von 
pflanzenschädigenden Frass-Insekten und Bodeninsekten.
Patent EP-0191480-A3 (EP)
IPC: F16L3/10
Filed: 1986-02-13
Abstract: Eine Schelle für Rohre, Schläuche oder dgl. hat zwei 
gleich ausgebildete Formhälften (1, 10), die jeweils eine 
dem aufzunehmenden Rohr, Schlauch oder dgl. angepasste 
halbkreisförmige Ausnehmung (2) aufweisen und die sen­
krecht zur Achse und ausserhalb der Ausnehmung an­
geordnete Durchgangsbohrungen (3, 4) für die Aufnahme 
jeweils eines Befestigungsgliedes haben. Um eine Verbin­
dung zwischen Rohrschellen zu schaffen, welche ohne 
Klemmplatten auskommt, sind an zwei einander gegen­
überliegenden Seiten der Schelle in Richtung von deren 
Breite oder Höhe sich erstreckende längliche Formschluss­
vorsprünge (5, 6, 12) und Formschlussausnehmungen (7, 8, 
11) derart vorgesehen, dass zwei nebeneinander liegende 
Schellen mittels in Formschlussausnehmungen eingrei­
fende Formschlussvorsprünge formschlüssig miteinander 
verbindbar sind.
Patent EP-0199061-A3 (EP)
IPC: H01L21/033
Filed: 1986-03-13
Abstract: A fully self-aligned polycrystalline silicon emitter bipolar 
transistor. Self-alignment of the p⁺ base contact (12) 
is achieved by using oxidised sidewalls (8) (sidewall spacers) of the 
emitter mesa (7) as part of the p⁺ base contact 
implantation mask. Collector contact (13) alignment can be achieved 
using oxidised sidewalls (17) of polycrystalline silicon 
alignment mesas (14) defined in the same polysilicon as the emitter 
mesa (7) but deposited on oxide (2) rather than the 
implanted base region (5).
Patent EP-0203499-A3 (EP)
Title: A method of and apparatus for applying a mark to paper and a paper for use in such method
IPC: B41M3/10
Filed: 1986-05-20
Abstract: A method of applying a "pseudo watermark" to paper, comprises the steps of preparing a paper containing a suitable amount of a thermally sensitive material, the presence of which renders the translucency of the paper variable by temperature change, and subsequently applying heat to a part of the surface of the paper in a manner to cause a region of the paper to become semi-translucent. Apparatus suitable for applying heat to the paper is also disclosed.
Patent EP-0223074-A3 (EP)
IPC: B29C45/32
Filed: 1986-10-16
Abstract: Durch die vorliegende Zusatzerfindung soll eine Tren­
nung der mittleren geteilten bewegbaren Formaufspannplatte 
von der zugeordneten Schneckeneinheit mit einem geringen 
konstruktiven Aufwand ermöglicht werden, in dem an die 
Schneckeneinheit ein rechtwinkliger Adapter 1 angeschlossen 
ist, an dem ein in Spritzrichtung in sich verfahrbares Ver­
schlußdüsensystem angeordnet ist und das erforderliche 
Schmelzeausgleichssystem durch das Hubvolumen der 
Schneckeneinheit gebildet ist.  
     Hierbei ist das Verschlußdüsensystem aus einem Hydrau­
likzylinder 2 mit Flansch 2′, einer innenliegenden Torpedofüh­
rungshülse 3 mit einem innenbeheizten verfahrbaren Torpedo 
4 sowie einer verfahrbaren Düsenplatte 5 mit beheizbarer Ver­
schlußdüse 6 gebildet.
Patent EP-0190856-A3 (EP)
Title: Breathing apparatus
IPC: A61M16/00
Filed: 1986-01-27
Abstract: Apparatus for supplying air or oxygen to a patient comprises an on/off valve (16 to 24) located between a gas inlet (10) and a gas outlet (28), the valve including a driving position (42) which is biased to open the valve by means of a spring (44) and to close the valve by the pressure of gas in a reservoir (34) which has a slow vent or bleed and is fed with gas from the inlet/outlet feed line (26) in accordance with the setting of an adjustable throttle (30). thus, cyclic gas supply to the patient is developed, as the valve is opened and closed in accordance with movement of the piston under the combined effect of the opposed spring pressure and gas pressure acting thereon.
Patent EP-0222542-A3 (EP)
Title: Catalyst precursors
IPC: B01J23/745
Filed: 1986-10-24
Abstract: Catalyst precursor units, e.g. for ammonia synthesis catalysts, comprise an iron oxide composition in the form of sintered shaped units of substantially uniform cross section having a plurality, e.g. 13 to 50 or more, through passages of substantially uniform cross section. The passages preferably have a diameter of less than 1.5, particularly less than 0.7, mm.
Patent EP-0232848-A3 (EP)
IPC: B01D39/20
Filed: 1987-02-04
Abstract: Ein Filterelement besteht aus einer Endkappe (1) mit einer 
Durchlaßöffnung (2), einer Bodenkappe (10) und einem dazwi­
schen angeordneten, im wesentlichen rohrförmigen Mittel­
stück (7, 8, 9). Das Mittelstück (7, 8, 9) ist in Nuten 
(6, 13) der Endkappe (1) und der Bodenkappe (10) einge­
steckt und mittels einer Vergußmasse (14) aus Glaslot fest­
gelegt. Zusätzlich kann die gesamte Oberfläche des Filter­
elements mit Glas beschichtet sein, so daß sich eine erhöh­
te Korrosions- und Chemikalienbeständigkeit ergibt.
Patent EP-0235784-A3 (EP)
Title: Tipping mechanism for a refuse-collecting vehicle
IPC: B65F3/00
Filed: 1985-04-10
Abstract: A motor-driven garbage truck provided with a detachable garbage container equipped with releasable coupling elements, and also having permanently mounted thereon which includes a pouring chute in the forward portion, lifting and tipping apparatus for picking up a garbage can and discharging the contents thereof into the chute leading to a receiving space, and a conveying and compacting apparatus for transferring the garbage from the receiving space into the container through the receiving opening, which is provided with a closure is disclosed. The pouring unit is disposed in part above the driver's cab and in part between the cab and the container, the chute being disposed in a region extending behind and above the cab. The lifting and tipping apparatus includes at least one lifting arm, pivotally movable about a transverse pivot carried by the pouring unit or the chassis of the vehicle. The lifting arm carries at its free end a carrying rail, which is parallel to the tranverse pivot and pivotally movable between a pick-up position, in which the rail is disposed below and in front of the driver's cab, and a pouring position, in which the rail is disposed above and behind the cab. The rail is provided with a displaceable or pivotally movable, extensible coupling or gripping member for coupling to or gripping a garbage can placed on the street.
Patent EP-0256475-A3 (EP)
IPC: A23L27/30
Filed: 1987-08-10
Abstract: Sweeteners of the formula 
  
and food acceptable salts thereof, where the substituents 
are disclosed herein.
Patent EP-0277342-A3 (EP)
Title: Method and device to homogenize the heating of food in a cooking oven heated by microwaves
IPC: H05B6/70
Filed: 1987-12-21
Abstract: The known methods for homogenising the field distribution in a cooking space heated by microwaves, such as rotating antennas, rotating plates and wave stirrers, are relatively expensive. The characteristic impedance is periodically changed by means of a rotating element (5) arranged in the waveguide (3) between the magnetron (1) and the injection aperture (6) into the cooking space (2). In this way, the output frequency of the magnetron is also changed, resulting in homogenisation of the field. <IMAGE>
Patent EP-0247725-A3 (EP)
Title: Calcium independent camp phosphodiestrerase inhibitor antidepressant
IPC: C07D233/38
Filed: 1987-04-23
Abstract: Antidepressant agents having the formula <CHEM> wherein R<1> is a polycycloalkyl group; R<2> is methyl or ethyl, X is O or NH; and Y comprises a 5- or 6-membered heterocyclic ring having one or two nitrogens; or fused bicyclic heterocyclic rings having a total of three nitrogen atoms, one in each ring and one angular nitrogen.
Patent EP-0260836-A3 (EP)
IPC: G06F3/039
Filed: 1987-08-27
Abstract: A method and apparatus for calibrating an electro-optical 
mouse during the detection of light reflected from a surface with 
optically contrasting indicia. The voltage output from the light 
detector is compared with stepped ramped sequences of reference 
voltage signals representing a count, the ramped sequence being 
stopped in response to each transition of the comparator between 
a first state where the amplitude of one of the input signals is 
less than that of the other and a second state where the 
amplitude of the one of the input signals is equal to or greater 
than the other. A processor determines the highest and lowest 
numbers at which any of the ramped sequences are stopped; and 
calculates at least one threshold value in dependence on the 
difference between the highest and lowest numbers.
Patent EP-0262903-A3 (EP)
IPC: A61P31/04
Filed: 1987-09-28
Abstract: New 4′′′-O-acyl-20-modified tylosin and 4′′-O-­
acyl-20-modified-desmycosin and 4′-deoxydesmycosin 
derivatives have significant oral anti­
bacterial activity. Compositions containing and methods 
of using these compounds are also provided.
Patent EP-0269402-A3 (EP)
Title: Developing device
IPC: G03G15/08
Filed: 1987-11-23
Abstract: A developing device comprising a developing section 
(4) provided with applicator means (12) for applying a 
developer to a latent electrostatic image and a 
supporting section (2) for supporting the developing 
section (4) rotatably between an operating position at 
which the developer held on the applicator means acts 
on image-bearing means (42) and a non-operating position 
at which the developer held on the applicator means 
(12) does not substantially act on the image-bearing 
means (42). According to a first aspect, positioning 
means (204) is provided which acts on the developing 
section (4) and holds it at the operating position. 
According to a second aspect, there is provided means 
for holding the developing section (4) at the non-operating 
position at the time of mounting the main body (6) of 
the developing device on an image-forming machine. 
According to a third aspect, when the main body (6) of 
the developing device is mounted on the image-forming 
machine, electrical connecting means provided in them 
are electrically coupled to each other. According to 
a fourth aspect, a toner cartridge (88) loaded detachably 
into the main body (6) of the developing device not 
necessarily of the above type cannot be detached from 
the main body of the developing device unless its 
discharge opening (296) is closed with a cover member 
(304).
Patent EP-0273677-A3 (EP)
IPC: B05B12/08
Filed: 1987-12-22
Abstract: A multiple high pressure liquid nozzled gun 
system and flow controller (10) therefor. The flow 
controller (10) permits the connection of two guns and 
allows activation or de-activation of one gun without 
affecting the other gun. The flow controller has 
multiple internal channels (38, 74, 76) which re-direct 
liquid flow upon discharge of liquid (water) through the 
gun to "dump". The flow controller (10) has high 
pressure channels (92) through which liquid under high 
pressure flows to the gun nozzles, and alternate 
channels (38) through which liquid may flow when the 
guns are in a trigger-released or "dump" mode permitting 
liquid to flow through the controller (10), to the gun, 
and out of the gun's dump port. The piston arrangement 
includes a piston (28) and spool (78). High pressure 
delivery means in the alternate channels (38) comprise 
orifice means (68) preferably formed by a needle valve 
(64) and seat (66) and being adjustable. A spool 
actuating channel (74, 76) extends between an outlet 
channel (42) and piston channel (106) so as to transmit 
fluid pressure at output means (36) to the spool (78) in 
opposition to biasing means (26) acting on the piston 
(28).
Patent EP-0272974-A3 (EP)
Title: Tubular reactor
IPC: B01F5/06
Filed: 1987-12-10
Abstract: Tubular reactor incorporating a convergent-divergent member or a convergent member at the exit of the zone for introducing reactants and a convergent-divergent member or a convergent member at the exit of the reaction zone just before the exit nozzle for the finished products. <IMAGE>
Patent EP-0291799-A3 (EP)
Title: Dioxyalkylenearyl-dihydropyridines and their intermediary compounds, process for their preparation and their use
IPC: C07D491/04
Filed: 1988-05-07
Abstract: Circulation-active dihydropyridines of the formulaR7 is H, alkyl or various other radicals, R2 and R4 each independently is alkyl or other radicals, R3 is H or optionally substituted alkyl, and R5 completes a keto or ester group, and physiologically acceptable salts thereof. Also the aldehyde intermediate therefor of the formula   <IMAGE>
Patent EP-0302202-A3 (EP)
IPC: B25B21/00
Filed: 1988-06-15
Abstract: Vorrichtung zum Festsetzen von Befestigungselementen (23)  
     Zum Festsetzen von Befestigungselementen, die in hinterschnit­
tene Bohrlöcher einsetzbar sind und ein durch Drehung ihres 
Schaftes (27) aufspreizbares Spreizelement (26) haben, mußten bisher 
mit speziellen Werkzeugen im Bohrloch festgesetzt werden.  
     Zum Festsetzen der Befestigungselemente wird ein Zwischenstück (15) 
vorgeschlagen, welches auf den Bohrer (17) einer Bohrmaschine auf­
setzbar ist und das Drehmoment vom Bohrer zum Befestigungsele­
ment überträgt. Mittels einer Schlagbohrmaschine lassen sich 
somit derartige Befestigungselemente sehr einfach und schnell 
in Bohrlöchern mit Hinterschneidungen festsetzen.
Patent EP-0303942-A3 (EP)
Title: Triarylmethan-Farbbildner
IPC: C09B67/28
Filed: 1988-08-09
Abstract: Farbbildner der allgemeinen Formel 
  
worin  
X Hydroxy, Alkoxy, Alkenyloxy, Aralkoxy, Cycloalkoxy, 
Aryloxy, Acyloxy, Alkylamino, Dialkylamino, Acyl­
amino, Aralkylamino oder Arylamino,  
R Alkyl, Alkenyl oder Aralkyl,  
R₁ Wasserstoff, Halogen oder Alkyl,  
R₂ Alkoxy, Aralkoxy, Aryloxy oder einen Rest der 
Formel 
 
 
  
Y₁ und Y₂ unabängig voneinander Alkyl, Aryl, Cyclo­
alkyl oder Aralkyl bedeuten, oder  
R₂ mit A in o-Stellung einen heterocyclischen Ring 
bildet,  
dem Ring A in o-/m-Stellung zu R₂ ein Benzolring anel­
liert sein kann,  
und der Ring A und seine anellierten Ringe und die 
cyclischen und acyclischen Reste weitere in der 
Farbstoffchemie übliche, nichtionische Substituenten 
tragen können,  
finden Verwendung in Thermoreaktivpapieren und druck­
empfindlichen Aufzeichnungsmaterialien und zur Herstel­
lung hochkonzentrierter Lösungen in organischen Lösungs­
mitteln.
Patent EP-0306005-A3 (EP)
Title: Heterodyne color signal recognition
IPC: H04N9/83
Filed: 1988-08-31
Abstract: A heterodyne color signal recognition circuit 
generates an error signal for each horizontal line of 
an input video signal for which the phase relationship 
of the horizontal sync pulse and color subcarrier 
burst exceeds a given phase relationship by a 
predetermined tolerance. The error signals are summed 
over a video field to produce a preliminary non-direct 
color signal for the video field. Preliminary 
non-direct color signals for successive video fields 
are digitally filtered to generate a non-direct color 
signal indicative of a heterodyne color signal source, 
the non-direct color signal being used to 
automatically switch in a time base corrector between 
the input video signal and further video processing.
Patent EP-0307882-A3 (EP)
IPC: G01N33/53
Filed: 1988-09-14
Abstract: Test reagents incorporate immunological 
materials capable of recognizing specific antigens or 
antibodies in test sample. The materials are selected 
to respond differently to a control product such that 
they are used as a switch to control the operation of an 
analytical instrument.
Patent EP-0308857-A3 (EP)
IPC: B30B15/04
Filed: 1988-09-19
Abstract: Eine Stanzvorrichtung, vorzugsweise zum Stanzen intermittierend 
bewegter Materialbahnen aus thermoplastischem Kunststoff, besteht aus in 
einem Maschinengestell gehalterten Ober- und Unterwerkzeugen, von denen 
mindestens eins mit einem dieses auf-und abbewegenden Antrieb versehen 
ist. Um saubere Stanzschnitte auszuführen, bestehen die Werkzeuge aus 
einer Messerplatte oder einem Messerring und einer Widerlagerplatte oder 
einem Widerlagerring, die am Ende des Stanzschnittes hart 
aufeinanderstoßend einander berühren oder nahezu berühren.
Patent EP-0313907-A3 (EP)
IPC: C08G14/14
Filed: 1988-10-11
Abstract: Die Erfindung betrifft die Verwendung von im wesentlichen schutzkolloid­
freien Einkomponentensystemen auf Basis einer Kombination aus einer 
wäßrigen Primärdispersion eines synthetischen Polymeren und einem 
wasserunlöslichen Polykondensat aus Phenolen und Aldehyden, die teilweise 
durch Ketone ersetzt sein können, wobei die phenolischen Komponenten des 
Polykondensats zunächst mit einer wäßrigen Polymerdispersion eines 
synthetischen Polymeren vermischt und in diesem Gemisch dann die 
Polykondensation mit den Aldehyden, die teilweise durch Ketone ersetzt 
sein können, unter üblichen Bedingungen durchgeführt worden ist, als 
Bindemittel zur Herstellung von Isolierplatten und -einsätzen sowie von 
exothermen Massen für den Metallguß.
Patent EP-0317000-A3 (EP)
IPC: B65D77/32
Filed: 1988-11-11
Abstract: A shipping carton or container that can be readily 
opened and converted into a display tray without having to 
use a knife or other sharp instrument. The carton is formed 
from a blank having four sidewalls (12, 14, 16, 18) and hingedly 
connected top and bottom end panels. The sidewalls have a line of 
severance (29) running circumferentially around the carton that 
defines a continuous butt joint separating the carton into a 
top cover section (40) and a bottom tray section (50). A wide tape 
having a narrow tear filament (39) or strip attached to its inner 
surface is adhesively attached to the sidewalls' outer surface 
such that it bridges the butt joint and holds the carton's top 
and bottom sections together, the tear strip being 
substantially superimposed over the butt joint. Pulling the 
tear filament neatly splits the wide tape and separates the 
carton's top and bottom sections.
Patent EP-0285278-A3 (EP)
Title: Method of treating anxiety with tetrahydrobenzûc,d¨indole-6-carboxamides
IPC: A61K31/40
Filed: 1988-03-10
Abstract: The present invention discloses the use of a compound of the formula   <CHEM>  wherein:      R<1> is hydrogen, methyl, ethyl, n-propyl or allyl;      R<2> is hydrogen, methyl, ethyl, n-propyl or allyl; or a pharmaceutically acceptable acid addition salt thereof, for the manufacture of a medicament for the treatment of anxiety in humans.
Patent EP-0301676-A3 (EP)
Title: Degradable beverage container
IPC: B32B7/02
Filed: 1988-03-31
Abstract: A sealed container which is at least 80% by volume 
full of a carbonated beverage, the amount of carbonation of 
said beverage being sufficient to provide a carbon dioxide 
pressure of at least 78 kPa (0.8 atm) within said container, 
which container comprises a degradable plastics shell 
wherein the oxygen and carbon dioxide permeability of at 
least the outer portion is below 200 cm³ 25 µm/654 cm² 
-day-bar (200 cm³ mil/100 sq. in-day-atm) and the oxygen and 
carbon dioxide permeability of said shell is at least 0.7 
cm³ 25 µm/654 cm² -day-bar (0.7 cm³ mil/100 sq. in-day-atm). 
The container remains stable as long as it is sealed, but 
starts to degrade when it is opened and the inside is 
exposed to oxygen in the atmosphere.
Patent EP-0279742-A3 (EP)
IPC: C07B37/10
Filed: 1988-02-15
Abstract: The present invention relates to a novel process in which 
a dienophile having the following general formula (XIV): 
  
is reacted with a diene having the following formula (XV): 
  
in the presence of a connector of the formula:    
     
-E¹  
in order to afford tricyclic compounds having the following general 
formula (I):