baber/WOPTO huggingface dataset:
Patent SG-11201909769V-A (SG)
Title: Ergonomic disposable cutting tool for sterility testing
Inventor: MULLER GERARD
IPC: B23D21/00
Filed: 2018-04-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 25 October 2018 (25.10.2018) WIPO I PCT ill mu °million °nolo Imo oimIE (10) International Publication Number WO 2018/192887 Al (51) International Patent Classification: B26D 3/16 (2006.01) B26D 5/10 (2006.01) B26D 1/01 (2006.01) B23D 21/10 (2006.01) B23D 21/00 (2006.01) (21) International Application Number: PCT/EP2018/059695 (22) International Filing Date: 16 April 2018 (16.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17290054.0 20 April 2017 (20.04.2017) EP (71) Applicant: MERCK PATENT GMBH [DE/DE]; Frank- furter Strasse 250, 64293 Darmstadt (DE). (72) Inventors: MULLER, Gerard; 43 rue de la Houble, 67280 Urmatt (FR). ARRAULT, Mathieu; 19 rue des Roeseren, 57850 Dabo (FR). BOEUF, Julien; 13 me Jean-Jacques Moerlen, 67140 Barr (FR). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (54) Title: ERGONOMIC DISPOSABLE CUTTING TOOL FOR STERILITY TESTING 32 13 N 00 00 00 O C 11 Fig. 1 (57) : The invention relates to a device for cutting tubing, comprising a frame having an entry window and an exit window for defining a pathway of the longitudinal axis of the tube through the device, a cutting element arranged on the frame, wherein the cutting element is arranged lateral and opposite to the pathway of the tubing and wherein at least the portion of the frame is formed mobile and the cutting element is arranged on or opposite to the mobile portion to enable the cutting element to be pressed into the pathway of the longitudinal axis of the tubing. [Continued on next page] WO 2018/192887 Al MIDEDIMOMMIDIREIDIDEMOIEIMEHMEMOIMIE TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))
Patent AT-396802-B (AT)
Title: Installation for removing and/or for transporting sewage from individual points of origin
Inventor: WEBER ERICH
IPC: E03F5/22
Filed: 1991-01-02
Granted: 1993-12-27
Abstract: In an installation for removing and/or for transporting sewage from individual points of origin, e.g. carpark toilets, the point of origin has arranged downstream of it, in a manner known per se, a comminution pump 2 which delivers the sewage, once the solids contained in it have been comminuted, into a collecting tank 4. For the purpose of transportation to a clarification plant or to a sewer, there is provided a pump 7, 7' which delivers from the collecting tank, has a circulating displacing element and is controlled in dependence on the level of liquid in the collecting tank 4. This ensures disruption-free transportation of the sewage. <IMAGE>
Patent YU-42995-B (YU)
Title: Process for preparing new sulfonamides
Inventor: WITTE E
IPC: A61K31/185
Filed: 1981-01-06
Abstract: The invention provides sulphonamides of the formula    <IMAGE>  (I) wherein R is a hydrogen atom or a lower alkyl radical; R1 is alkyl, aryl, aralkyl or aralkenyl, the aryl moiety of which in each case can be optionally substituted one or more times by hydroxyl, halogen, trifluoromethyl, lower alkyl or alkoxy or by acyl, carboxy or alkoxycarbonyl; n is 1, 2 or 3; and W is a valence bond or a divalent aliphatic hydrocarbon linkage and the physiologically acceptable salts, esters and amides of such compound. These compounds have excellent pharmacological lipid depressing activity and inhibit thrombocyte aggregation.
Patent YU-46537-B (YU)
Title: Uredjaj zatoplotno tretiranje aluminijum hidrata
Inventor: SHAMUILOV B L
IPC: F27B15/10
Filed: 1988-01-06
Abstract: UREDJAJ ZATOPLOTNO TRETIRANJE ALUMINIJUM HIDRATA‚ koji obuhvata ciklonski toplotni izmenjivač lzafazu sušenja, oknasti toplotni izmenjivač 3 zafazu dehidratacije i komoru 5 kojaje spojenasa izmenjivačem 3 pomoću vertikalnog cilindričnog okna 4 i konstruisanajezakalcinovanje dehidratisanog materijala ufluidizovanom sloju 6, pri čemupomenutakomora 5 za kalcinovanje imarešetku 7 postavljenu tako dajedeli u zone 5a i 5b, iznadrešetke i ispodrešetka, i opremljenaje sa spoljnim granama cevi 8 i 9 za šaržiranje sredstva za fluidizaciju u zonu 5b ispod rešetke 7 i za pražnjenje dobijenog aluminijum-oksida, kao isa uredjajem 10 za sagorevanje goriva, koji je instaliran u odeljku zapražnjenje zone 5a iznadrešetke 7 komore za kalcinovanje, naznačen time, što je vertikalno cilindrično okno (4) postavljeno koaksijalno sa oknastim toplotnim izmenjivačem (3) za dehidrataciju i što je na donjem delu vertikalnog cilindričnog okna (4) postavljena rešetka (7') koja ga deli u zone (5'a) i (5'b), spojnu granu a ispod koje je izvedena cev (11) za šaržiranje sredstva za fluidizaciju, što je uredjaj (12) za sagorevanje goriva postavljen iznad rešetke (7'), pri čemu vertikalno okno (4) i komora (5) za kalcinovanje imaju zajedničkizid (13) u kome su izvedeni vertikalni prorez (14) postavljen u prostoru iznadfluidizovanog sloja, i kanalni otvori (15) od kojih je bar jedan postavljen unutar fluidizovanog sloja. Prijava sadrži još pet zavisnih patentnih zatheva.
Patent HU-185865-B (HU)
Title: Process for producing new bis quaterner-ammonium-derivatives of 2-beta,16-beta-dipiperidino-5-alpha-androstane
Inventor: KELDER JAN
IPC: A61K31/58
Filed: 1980-12-09
Abstract: The invention relates to novel bisquaternary ammonium derivatives of 2β, 16β-dipiperidino-5α-androstanes having the formula:
     wherein
     CH(CH 3 ) 2 ; R 2  = CH 3 , C 2 H 5  or CH 2 CH=CH 2 ; R 3  =CH 3 , C 2 H 5  or CH 2 CH=CH 2 , with the proviso that R 2  and R 3  are not CH 3  simultaneously; R 4  = O or H(βOR 5 ), wherein R 5  = H or aliphatic carbacyl (1-6 C); and X = a halogen atom, to processes for their preparation and to pharmaceutical preparations. The invention also relates to novel 16- monoquaternary analogs as intermediates. 
     The compounds possess neuromuscular blocking activity.
Patent AT-405673-B (AT)
Title: Device for utilizing the wind force
IPC: F03D9/00
Filed: 1996-06-05
Granted: 1999-10-25
Abstract: In a device for utilizing the wind force, the wind flows over the open cross-section of a vertical outer surface 17, air being sucked in through one or more orifices at the lower end of the outer surface 17, and a rotor 9 being arranged within the outer surface 17. The open cross-section of the vertical outer surface 17 is covered by a sheet-like cover 3, 32. It thereby becomes possible that the vacuum caused by a wind can be utilized, whilst dimensions remain reasonable, and with an essentially laminar flow being generated, and whilst at the same time ensuring protection against atmospheric influences. <IMAGE>
Patent HU-184510-B (HU)
Title: Method for slag welding and slag welding apparatus
Inventor: OSZLAR IMRE
IPC: B23K25/00
Filed: 1982-03-01
Abstract: A method of pool-slag welding is carried out in the well-known manner and arrangement, however, with determined altering current intensity and/or voltage. A control unit is used which is suitable for the pulsewise altering of the values of current intensity and/or voltage which are necessary for welding. Altering current intensity is carried out advantageously by regulating the speed of feeding of the welding filler wire. The method and apparatus makes the production of intermittent welds possible, which are of better quality, greater toughness and better impact strength than the welds produced by known methods and apparatus.
Patent NO-137853-B (NO)
Title: Overf¦ringsapparat for magnetisk transport¦rsystem
Inventor: MOJDEN WALLACE WILLIAM
IPC: B65G47/53
Filed: 1972-01-28
Abstract: Overf^ringsapparat for magnetisk transportørsystem.
Patent YU-49153-B (YU)
Inventor: LJUBOJA MILENIJA
Filed: 1995-09-05
Abstract: Čajna mešavina za ublažavanje tegoba kod alergijske kijavice, bronhitisa i astme, naznač ena time, što obuhvata termički osušene i usitnjene droge od listova crnog duda, mori nigrae folium, u količini od 40%mas., listova bokvice, plataginis folium, u količini od 40%mas., listova koprive, urticae folium, u količini od 10%mas., i korena omana, inulae radix, u količini od 10%mas. mehanički izmešane na sobnoj temperaturi i što su pre mešanja listovi crnog duda, mori nigrae folium, bokvice, plantaginis folium, i koprive, urticae folium, prosejani kroz sito sa otvorima veličine 6 mm, dok je usitnjeni koren omana, imulae radix, prosejan kroz sito sa otvorima veličine 3 mm.
Patent YU-48758-B (YU)
Inventor: JOACHIM EICHER
IPC: A61M15/00
Filed: 1996-12-03
Abstract: Mehanizam na zapinjanje za oprugom aktivirano potiskivanje, koji se sastoji od opruge (4), koja deluje kao potiskivač na potisnu prirubnicu (5) i zaustavljača (6), naznačen time, što se u kućištu (2) opruge pod opterećenjem nalazi pritisna opruga (4), što potisnu prirubnicu (5), koja je pokretno i paralelno osi postavljena između gornjeg dela (1) kućišta, u koji ulazi i kućišta (2) opruge, obuhvata prstenasti zaustavljač (6) sa utisnutim zaustavnim površinama povezan sa tasterom (7) za otpuštanje zaustavljača (6) i što sadrži donji graničnik (8) i gornji graničnik (9) za potisnu prirubnicu (5). - Prijava sadrži još 6 zavisnih zahteva.
Patent ZA-81876-B (ZA)
Title: Acoustic transducers
Inventor: PANTON S
IPC: G10K11/02
Filed: 1981-02-10
Abstract: A broadly tuned directional acoustic transducer system for transmitting and receiving airborne sound, which provides enhanced efficiency and reduced cost without undue narrowing of bandwidth, makes use of an acoustic transducer element (2) coupled to a vibratable member (10), e.g. a plate, having a higher order flexural mode resonance at approximately the desired frequency of operation, the vibratable member being coupled to the air through low-hysteresis acoustic propagation material having an acoustic impedance much less than that of the vibratable member and much greater than that of the air. The material is disposed so that in the desired direction of propagation there is no substantial reduction of sound intensity in the far field resulting from cancellation occasioned by interaction of sound radiated from adjacent antinodal zones. Preferably the thickness of the material is such that it acts as an efficient acoustic impedance matching transformer. Preferably, the transducer element is piezoelectric and coupled to the centre of a disc-shaped vibratable member (10) to which the coupling material is applied in rings (16, 18, 20).
Patent ZA-83480-B (ZA)
Title: Method and apparatus for determining measured quantities
Inventor: WAIBEL REINHARD
IPC: G01D5/347
Filed: 1983-01-25
Abstract: A plurality of marks are carried on a movable member, the position of which represents a measured quantity. An image of a mark is projected onto a surface having a large number of detectors. The output signals of the detectors are fed into an evaluation circuit, which sequentially determines the intensity distribution on the detector and, thereby, the position of the mark by means of comparison of fixed threshold values with each of the detector signals and determines the centroid of the thus obtained intensity value distribution. The position of the centroid is a measure of the quantity to be measured.
Patent ZA-93383-B (ZA)
Title: High temperature aqueous polymerization process.
Inventor: HOLY NORMAN LEE
IPC: C09D7/45
Filed: 1993-01-20
Abstract: This invention relates to high temperature aqueous processes for the polymerization of one or more carboxylic monomer to produce low molecular weight, water-soluble polymer products useful as detergent additives, scale inhibitors, dispersants and crystal growth modifiers.
Patent AT-392168-B (AT)
Title: Process for producing an optically and magnetically codable recording medium
Inventor: GRUBER ROBERT
IPC: G06K19/06
Filed: 1986-04-18
Granted: 1991-02-11
Abstract: For producing an optically and magnetically codable travel ticket, identity card or the like, a thermal layer is applied to one side of a sheet-like basic body and a magnetic layer is applied to the other side. For forming the magnetic layer, a magnetic ink or paste is applied to the basic body and subsequently dried. As the solvent, the magnetic ink or paste predominantly contains benzene, since this does not attack the thermal layer. The magnetic layer is preferably also covered with a protective lacquer.
Patent AT-406428-B (AT)
Title: Data exchange system
IPC: G06F3/06
Filed: 1995-09-01
Granted: 2000-05-25
Abstract: A data exchange system, having mobile memory elements 2, contains coupling devices 9. In order to enable callibratable, protected data transfer by means of the mobile memory elements from input stations to interrogation or read-out stations, each memory element has an arithmetic unit 1 with a timer 3 and also a program memory 2b and a data memory 2a. Programs for inputting, interrogating and reading out data from the data memory 2, 2a can be stored in the program memory 2b. Data which characterize the type and authorisation of each individual station for the data exchange and, in the event of a memory element being coupled to an authorised station, determine the reliability, type and extent of the data transfer are stored in characteristic data memories. In the event of each data exchange, characteristic data, namely time data interrogated from the timer 3 and data about the coupled station, are stored in the data memory 2, 2a. <IMAGE>
Patent AT-409357-B (AT)
Title: Device for the longitudinal cutting of a film sheet
IPC: B26D5/02
Filed: 1998-09-23
Granted: 2002-07-25
Abstract: The invention relates to a device for the longitudinal cutting of a film sheet 1 into narrow film strips 2. In this case, a multiplicity of cutting blades 5 are arranged on a cutter beam 3 by means of distance pieces 4. The cutting blades 5 have two opposite cutting edges 9, 10. In order to change the cutting edges 9, 10 for cutting the film sheet 1, the cutting blades 5 are arranged on the cutter beam 3 in a rotatable manner. <IMAGE>
Patent AT-403377-B (AT)
Inventor: RAETZSCH MANFRED DR
IPC: C08F255/00
Filed: 1994-09-26
Granted: 1998-01-26
Abstract: The prodn. of grafted polyolefins (I) comprises bringing unsatd. grafting monomers (II) and opt. radical formers (III) into contact with solid particles of polyolefin (IV) in the form of a fluid bed which is fluidised by injecting steam and possibly 1-8C alkanol vapour.
Patent AT-406544-B (AT)
Title: Bottom reinforcement for plastic bathtubs
IPC: A47K3/16
Filed: 1993-11-17
Granted: 2000-06-26
Abstract: A bottom reinforcement for plastic bathtubs has rectangular shells 1, for example made of plastic, having a U-shaped transverse and longitudinal section. The shells 1 are provided, at the long sides and/or end sides, with projecting holding pins 2 having heads 3 and guide slots 4. The holding pins 2 of one shell are meshed with the guide slots 4 of an adjacent shell, forming a form-fitting connection. <IMAGE>
Patent AT-400373-B (AT)
IPC: H01R33/06
Filed: 1992-12-07
Granted: 1995-12-27
Abstract: An adjustable lamp holder for low-voltage lamps comprises conducting clamping pieces 9, 10 arranged parallel to one another and capable of being braced by a screwed connection (joint) 4, 5; 6, 7; 8, and which can be mounted on a busbar (conductor bar) in a manner of pincers. The busbar is formed by conductors 1, 2 held at a spacing from one another by means of spacers 3. The clamping pieces 9, 10 further embrace a ball 11 which is split into two halves 16, 17 by an insulating disc (washer) 18. Each of the halves 16, 17 bears a contact piece, e.g. a bore (hole) 21, 22 for connecting a low- voltage lamp 23. By loosening the screwed connection 4, 5; 6, 7; 8, the lamp holder can be displaced longitudinally on the busbar, and the rotary position of the ball 11 can simultaneously be adjusted between the clamping pieces 9, 10. <IMAGE>
Patent AT-382596-B (AT)
Title: Process for preparing sodium bicarbonate
IPC: C01D7/16
Filed: 1985-10-02
Granted: 1987-03-10
Abstract: A process is provided for preparing sodium bicarbonate, in which an aqueous sodium chloride solution and an organic solution of an amine which is insoluble in water are mixed, the resulting mixture is treated with a gas containing carbon dioxide to form an aqueous sodium bicarbonate suspension and an organic solution of amine hydrochloride and the aqueous sodium bicarbonate solution is treated to separate the solid sodium bicarbonate present in it and a mother liquor. The process of the invention is characterized in that the mother liquor is treated with at least part of the organic solution of the amine hydrochloride, the carbon dioxide formed is taken off and an aqueous, dilute sodium chloride solution and an organic amine solution are obtained separately, rock salt is added to the dilute sodium chloride solution and the resulting concentrated aqueous sodium chloride solution and the organic amine solution are returned to the abovementioned mixture.
Patent DK-160093-B (DK)
Inventor: STILLINGS MICHAEL ROBIN
IPC: C07D405/04
Filed: 1983-04-14
Abstract: Imidazoline derivatives of the formulahaving the RS or S configuration wherein R<sup>1</sup> is alkyl C<sub>1-4</sub>, allyl, benzyl, phenethyl or hydroxyalkyl C<sub>2-4</sub>, and their non-toxic salts.Processes for their preparation and pharmaceutical compositions thereof. The compounds exhibit presynaptic a<sub>2</sub>-adrenoreceptor antagonist activity.
Patent DK-155738-B (DK)
Inventor: RENTZEA COSTIN
IPC: A01N43/64
Filed: 1981-07-09
Abstract: Novel 1,3-dioxan-5-yl-alkenyltriazoles of the formula    <IMAGE>  I where R1 and R2 are identical or different and each is hydrogen or alkyl of 1 to 5 carbon atoms, Ar is furanyl, thienyl, biphenylyl or naphthyl, or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or alkenyl, each of 1 to 5 carbon atoms, or by fluorine, chlorine, bromine, iodine, nitro, trifluoromethyl or phenoxy, and X is C=O, -CH(OH)- or -CH(O-COR3)-, where R3 is unsubstituted or halogen- or alkoxy-substituted alkyl of 1 to 5 carbon atoms or alkenyl of 2 to 5 carbon atoms or aryl, their salts and metal complexes, and their preparation. The novel compounds are plant growth regulators.
Patent DK-158815-B (DK)
Inventor: MAGIN LUDWIG
IPC: A01D43/073
Filed: 1982-07-16
Abstract: 1. Apparatus for controlling the spout (17) for a harvesting-chopping-loading machine (16) which is self-propelled or coupled to a tractor and which moves in a field accompanied by a trailer (19) or other independent vehicle forming a container for receiving the harvested and chopped products, in order to direct the spout (17) in such a way as to project said products into said receiving container, and using an emitter and a receiver of electrical type, as well as means (23) combined with the emitter (20)-receiver (21) assembly to interpret the signals received and to actuate the members (35) for directing the spout in dependence on the result of the interpretation operation, characterised in that there is provided an emitter (20)-receiver (21) assembly of radioelectric type, mounted on the harvesting-chopping-loading machine (16), and a reflector (22) or the like mounted on the trailer or other receiving container (19) or on the associated vehicle.
Patent DK-161650-B (DK)
Inventor: WAGNER BURKHARD ERIC
IPC: C08F2/34
Filed: 1981-12-23
Abstract: Catalyst compositions suitable for producing high density ethylene polymers in a low pressure gas phase process with low accompanying ethylene hydrogenation are produced by forming a precursor composition from a magnesium compound, titanium compound and electron donor compound; diluting said precursor composition with an inert carrier material; treating said diluted precursor composition with a boron halide compound: and activating the precursor composition with an organo aluminum compound.A preparative method and a polymerization process are also disclosed.
Patent FI-77009-B (FI)
Inventor: NITSCHKE DEAN MICHAEL
IPC: C03B35/14
Filed: 1984-10-19
Granted: 1988-09-30
Abstract: @ An apparatus disclosed for use in bending heated sheets of glass transported generally horizontally on a conveyor within a furnace heating chamber includes a holder and a counter-balanced bending member, both of which are located above the conveyor in a spaced relationship such that a heated sheet of glass can be transported under the holder. The holder includes a curved, downwardly facing surface with spaced openings in which vacuum is drawn to receive the glass sheet from the conveyor. Gas, such as air, is blown upwardly from below the conveyor against the heated sheet of glass such that the sheet is moved upwardly and into engagement with the curved surface of the holder. The bending member then moves downwardly below the holder surface and thereafter upwardly against the heated sheet of glass to provide bending thereof to the curved shape of the holder surface. The bending member then moves back to its home position above the holder surface. A carrier mold ring moves under the supported glass and the vacuum is then terminated so the glass drops onto the ring and bends under the bias of gravity in a manner that allows the glass to be further bent. Subsequently, the mold ring is moved from the furnace to a quench unit that tempers the glass.
Patent FI-100186-B (FI)
Inventor: MARTENS ANDRE
IPC: C08F2/34
Filed: 1991-08-31
Granted: 1997-10-15
Abstract: A continuous process (I) for the polymerisation of a 2-12C is carried out in a gas phase polymerisation reactor by bringing a gaseous reaction mixture contg. olefin (II) into contact with a catalyst system (III) of the Ziegler-Natta type consisting of a solid catalyst consisting (A) at least one cpd. of a transition metal belonging to gps. IV, V or VI of the Periodic Table of elements and of a (B) cocatalyst comprising at least one organometallic cpd. of a metal belonging to gps. II or III of the Periodic Table. In (I), (II) is fed into the polymerisation reactor at a constant rate.
Patent FI-98244-B (FI)
Inventor: SMITH EDWARD PETER
IPC: B29C48/16
Filed: 1991-09-02
Granted: 1997-01-31
Abstract: A method for lining a passageway which comprises providing a plurality of tube sections connected end to end, pulling a first tube section through the passageway in a collapsed condition and thereafter everting a second tube section into the interior of said collapsed first tube section to cause it to expand outwardly toward the interior walls of said passageway.
Patent FI-107537-B (FI)
Inventor: KOCH KEVIN
IPC: C07H15/207
Filed: 1994-09-01
Granted: 2001-08-31
Abstract: PCT No. PCT/US93/00427 Sec. 371 Date Aug. 8, 1994 Sec. 102(e) Date Aug. 8, 1994 PCT Filed Jan. 27, 1993 PCT Pub. No. WO93/18048 PCT Pub. Date Sep. 16, 1993Macrolides of formula (I) and methods of treatment of resistance to transplantation, fungal infections and autoimmune diseases such as rheumatoid arthritis and psoriasis using said macrolides of formula (I), wherein n is 1 or 2; A and B are taken together and form =O or A and B are taken separately and are each H or A is OH and B is H; R1 is a 2-aminoglycosyl group; R2 is OH or a glycosyloxy group; and R3 is an alkyl or allyl group.