baber/WOPTO huggingface dataset:
Patent CN-100493684-C (CN)
Inventor: DEYAO GAO
IPC: B01D61/46
Filed: 2007-06-28
Granted: 2009-06-03
Abstract: 本发明公开了一种电去离子渗析器中的电极板。包括底板，在底板上开有进水口，出水口，与淡水隔板、浓水隔板连接的螺纹孔，放置在底板上的金属导电板，与金属导电板连接的金属引线，其特征在于所述底板为工程塑料板，在底板上开有1-2道可放入密封圈的凹槽，金属导电板嵌进底板中部的凹槽内，在凹槽边沿设有若干个卡住金属导电板的卡扣，在金属导电板上焊接有一个螺母，螺母内连接有一根螺杆，螺杆伸出底板对应位置上的孔伸出到底板另一侧，所述金属引线焊接在另一个可与螺杆连接的螺母上。本发明密封性能更好，底板、金属导电板及金属引线三部件之间的连接更加方便、快速。
Patent CN-100487889-C (CN)
Title: 芯片封装构造、芯片构造及芯片形成方法
Inventor: JIAXU LIN
IPC: H01L21/78
Filed: 2007-05-22
Granted: 2009-05-13
Abstract: 本发明公开一种防止爬胶的芯片封装构造，其主要包括一承载器、一芯片及一底胶。芯片设置于承载器上，芯片包括有一芯片本体及一挡胶部，芯片本体具有至少一侧面，挡胶部形成于该侧面，挡胶部具有一顶面与一底面，挡胶部的底面与顶面之间构成有一夹角，该夹角为锐角。底胶形成于承载器与芯片之间且能够被挡胶部的底面阻挡，以防止底胶向上爬胶而污染芯片。
Patent CN-100576870-C (CN)
Inventor: HIROAKI UCHIYAMA
IPC: H04W4/00
Filed: 2007-06-20
Granted: 2009-12-30
Abstract: 本发明的摄像装置，包括：拍摄被摄体并将图像数据输出的摄像部(16)；存放图像数据的存储介质(20)；与获取目前位置数据(22)的外部设备通信的第一通信线路(30)；经由无线接入点发送图像数据的第二通信线路(32)；以及将无线接入点与设有所述无线接入点的地理数据对应登记的对应图(24)；将从外部设备得到的目前位置数据(22)作为检索关键参数来检索对应图(24)，经由检索到的无线接入点发送存放在存储介质(20)内的图像数据，降低数据传输的消耗电力，提高发送效率。本发明提供摄像装置、摄像系统、记录介质及程序。
Patent CN-100552214-C (CN)
Inventor: ZHIYONG LI
IPC: F03B13/14
Filed: 2007-06-29
Granted: 2009-10-21
Abstract: 本发明为一种低造价、低成本、高能量转换效率，适用性广的中小型波浪能和海流能通用发电装置。可适用于从小浪到大浪的环境发电；也可适用于流速在2M/S以上水道的海流、河流、溪流等能量转换发电。装置发电量可以从几百瓦到几百千瓦不等。
Patent CN-100561635-C (CN)
Inventor: XIN YU
IPC: H01J9/00
Filed: 2007-12-24
Granted: 2009-11-18
Abstract: 微波硫灯灯泡的制备方法，它涉及硫灯灯泡的制备方法。它解决了现有制备工艺不能保证灯泡内具有高真空度，而充入硫粉纯度及硫和Ar气的充入量不易控制，使制得的硫灯的发光亮度及效率、显色性和使用寿命都较低的问题。本发明的制备方法为：一、制备装置；二、加热抽真空，使装置内真空度维持在2～8×10 -4 Pa；三、将玻璃容器上方的凸出的玻璃尖砸裂；四、采用马弗炉将玻璃容器中的硫粉加温，使玻璃容器内的硫粉蒸发至石英灯泡内；五、待硫粉完全蒸发后冷却至室温，再将灯泡内抽真空并充入Ar气，即制得微波硫灯灯泡。本发明制得的灯泡其发光光谱接近于太阳光谱，显色指数达到82，由于灯泡内的高真空度和高纯度的硫显著地提高了灯泡的使用寿命。
Patent CN-100556622-C (CN)
Inventor: ZHONG YANG
IPC: B25J5/00
Filed: 2008-02-28
Granted: 2009-11-04
Abstract: 本结构简化的全方位运动球形机器人，涉及球形机器人技术领域。其行走驱动装置包括处于竖直状态的圆弧架(5)，在其外侧两边沿直径方向对称固连一对短轴(3)，短轴过球心并经轴承与球壳形成转动副；圆弧架的下方固连一个直线行走机构，该直线行走机构包括行走电机(6)、主轮(7)和配重(8)，主轮在行走电机的驱动下沿球壳内侧滚动，驱动球体作直线运动；圆弧架的上侧有转向控制机构，该转向控制机构为包含小轮(10)和内部电机的质量小车(12)，质量小车在其内部电机的驱动下由小轮带动沿圆弧架上侧凹槽运动，使球体重心左右偏移，从而实现球形机器人的转向控制。本发明结构简单，控制方便，运动灵活，稳定性好，具有搭载附件的能力。
Patent PT-1061067-E (PT)
Inventor: UEDA YASUYOSHI
IPC: C07C231/24
Filed: 1997-03-06
Abstract: A process for preparing N< omega >-trifluoroacetyl-basic amino acid from a basic amino acid and a trifluoroacetic ester which comprises: adding successively a trifluoroacetic ester to a basic aqueous liquid containing a basic amino acid and a basic pH adjusting agent at a concentration at which a total weight of the basic amino acid is about 5 to 40 % (w/v) relative to the volume of a charged solvent while maintaining the pH of the aqueous liquid in a range of 10.6 to 11.4 and the temperature at 20 DEG C or lower, thereby performing the reaction, and crystallizing and collecting N< omega >-trifluoroacetyl-basic amino acid from the aqueous liquid after the reaction.
Patent PT-1112146-E (PT)
Inventor: ZIMMERMANN HANS
IPC: B24B5/42
Filed: 2000-03-24
Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.
Patent PT-1161562-E (PT)
Title: Deleted sequences in m. bovis bcg/m. bovis or m. tuberculosis, method for detecting mycobacteria using said sequences and vaccines
Inventor: COLE STEWART
IPC: C12Q1/689
Filed: 2000-03-16
Abstract: The invention concerns the isolation of nucleotide and peptide sequences in particular for differentiating, in diagnostic terms, an immunisation resulting from BCG vaccination of an infection by M. tuberculosis. Said sequences are either M. bovis BCG/M. bovis specific or M. tuberculosis specific. The invention also concerns a method for detecting said sequences, a method for detecting antibodies generated by the products expressing said sequences as well as kits for implementing said methods. Finally, the invention concerns novel vaccines.
Patent PT-1214076-E (PT)
Inventor: HILMANN JURGEN
IPC: A61K31/567
Filed: 2000-08-31
Abstract: The present invention relates to a multiple-phase pharmaceutical preparation consisting of a number of separately packaged and individually removable daily dosage units placed in a packaging unit and intended for oral administration for a period of at least 21 consecutive days, wherein said daily dosage unit comprises a natural estrogen, such as estradiol in an amount of from 0.5 mg to 4 mg, and 2 to 4 mg of drospirenone, and wherein at least 70% of said drospirenone is dissolved from said dosage unit within 30 minutes, as determined by USP XXIII Paddle Method II using water at 37°C as the dissolution media and 50 rpm as the stirring rate.
Patent PT-1187358-E (PT)
Inventor: YASUHIRO YANO
IPC: H04B1/707
Filed: 1999-03-05
Abstract: In a compressed mode, a spread spectrum communication device interleaves bit units across multiple frames using an interleaver, reduces the spreading factor using a framing/spreading unit, outputs the compressed mode frames at a predetermined compressed mode frame timing, and increases the average transmission power in the compressed mode at a radio frequency transmitter. Furthermore, a handover between different frequencies is carried out by establishing synchronization to another frequency carrier, based on a first search code and a second search code which have been detected, and moreover, a handover between different communication systems is carried out by establishing synchronization to a GSM, based on an FCCH and a SCH which have been detected.
Patent PT-1254522-E (PT)
Title: Communication controller for an active transponder
Inventor: SAEGROV ATLE
IPC: G07B15/06
Filed: 2001-01-15
Abstract: A method for processing of encoded information by a battery-powered active transponder is disclosed for the application within a transponder system for the wireless payment of road toll having the steps of receiving modulated microwave radiation of preset frequency by the transponder over the antenna and for obtaining an input signal demodulated for obtaining a binary input data sequence, feeding said binary input data sequence to a digital processor (microcontroller) operated by a processing clock of preset clock frequency for decoding and generating of a binary output data sequence, and forming an output signal from an answer to the received input signal within a certain duration.
Patent PT-1272352-E (PT)
Inventor: BALDUS CHRISTOF
IPC: B41M3/14
Filed: 2001-03-26
Abstract: Banknote paper has a printed surface (13) with print surfaces (14) within this print surface that are printed using an negative type printing process in which the paper is pushed at high pressure into engraved markings on the print plate that contain ink. Independent claims are made for a method for printing banknotes using such a negative type printing process, a print plate for use with such printing methods and a method for manufacturing the print plate using an engraving process.
Patent PT-1432941-E (PT)
Title: Ferrous pipe couplings and prelubricated coupling gaskets
Inventor: RADZIK JOSEPH G
IPC: F16L17/04
Filed: 2002-09-26
Abstract: One-piece, elastomeric gaskets for ferrous pipe couplings and the like are prelubricated with a coating of dry powder lubricant before installation. This coating can be applied before installation and as early as assembly by the manufacturer. The gaskets are combined with split ring collars to form couplings for pneumatic and hydraulic piping systems, including fire sprinkler systems, among others. The lubricant can be an organic starch powder derived from corn, rice, potatoes or other crops, talc or its primary ingredient, magnesium silicate hydroxide, or a combination of organic or organic and inorganic lubricant powders.
Patent PT-1341305-E (PT)
Title: Electrical switch
Inventor: BOLDIN RUDI
IPC: G01D5/165
Filed: 2003-02-07
Abstract: An electrical switch has a housing with (2) with position sensor (8) for a mechanical element (6) to operate an electronic switch (4) contact .
Patent PT-1362584-E (PT)
Title: Immediate wettability water soluble film or water soluble layer for oral application
Inventor: ZERBE HORST G
IPC: A61P11/00
Filed: 1997-10-22
Abstract: A preparation for use in the mouth contains a layer that adheres to the mucous membrane. The adhesive layer contains a homogeneous mixture based on a water-soluble polymer, a mixture of non-ionic surfactants, a polyalcohol, a cosmetic or pharmaceutical agent and flavourings and perfumes.
Patent PT-1507752-E (PT)
Title: Ceramic moulded body comprising a photocatalytic coating and method for producing the same
Inventor: THIERAUF AXEL
IPC: B01J35/00
Filed: 2003-05-28
Abstract: An oxide ceramic-based shaped article (A), having a surface which is self-cleaning on contact with rain or spraying with water, has a porous photocatalytically active oxide ceramic surface coating (I) with a specific surface of 25-200 (preferably 40-150) m2/g.  An Independent claim is included for the preparation of (A) by:  (a) forming a suspension by mixing photocatalytically active oxide ceramic powder, extender and/or adhesive and a liquid phase;  (b) applying a layer of the suspension to the oxide ceramic base material; and  (c) hardening the layer to form (I).
Patent PT-1581388-E (PT)
Title: Biodegradable multi-layer film
Inventor: BERGER WERNER
IPC: B29C48/10
Filed: 2003-12-09
Abstract: A co-extruded multilayer film comprises a modified thermoplastic starch blend layer containing above 1-10 wt.% water; and a layer of a biodegradable polyester, the layer (A) being free of polyhydroxyalkanoate copolymers consisting of >=2 specified repeat units. A co-extruded multilayer film comprises a modified thermoplastic starch blend layer containing above 1-10 wt.% water; and a layer of a biodegradable polyester, the layer (A) being free of polyhydroxyalkanoate copolymers consisting of >=2 repeat units of formula (I) and of formula (I) and/or (III). [Image] R 1>H or 1 or 2C alkyl; R 2> = 3-19 alkyl or alkenyl; n : 1 or 2; and m : 2-9. An independent claim is also claimed for production of the multilayer film by co-extrusion with the layers having similar melt and viscosity properties and layer (A) containing 1-10 wt.% water.
Patent PT-1878666-E (PT)
Title: Container lid equipped with a peelable membrane.
Inventor: JOUILLAT JEAN-FRANCOIS
IPC: B65D17/50
Filed: 2006-07-13
Abstract: The present invention concerns a container lid comprising a ring (2) defining an opening (6), said opening (6) being closed by a membrane (7) of "peelable" type, which peelable membrane (7) is joined to a peripheral surface (L) of said ring (2), said joining surface (L) being delimited by an inner border (Li) and an outer border (Lo), by means of a layer of matter (16) known as sealant layer constituting a surface coating layer of said ring (2) and / or said peelable membrane (7). 
According to the invention, on at least a part of the circumference of said joining surface (L), the thickness of the sealant layer (16) is variable in the radial direction, that is to say on its width, forming a width of variable thickness, this thickness increasing on at least a part of the width of said joining surface (L), in the direction from its outer border (Lo) towards its inner border (Li).
Patent PT-2029853-E (PT)
Title: Well drilling machine with new drill pipe loader
Inventor: COMACCHIO PATRIZIO
IPC: E21B7/02
Filed: 2006-11-13
Abstract: The invention is a new well drilling machine, in particular for drilling with single pipes, with supporting mast (M) provided with at least one drill head′ (R) for the rotation-translation movement of the drill pipe (A), a loader (C) for said pipes (A), hinged to the relative supporting frame (T), integral with the machine body, and wherein said loader (C) can be slanted from the non-operating position (1) to the operating position (2), in which said pipes (A) are further slanted with respect to ground level, and vice versa. The loader (C) comprises sliders (J, K) which run on parallel guides (S) and on which said pipes (A) rest transversally, wherein two or more long pins or bars (P) square to and integral with said sliders (J, .K) are positioned between adjacent pipes (A), and wherein the running of said sliders (J, K) causes the translation of said bars (P) and said pipes (A).
Patent PT-2361642-E (PT)
Title: Implantable device for intermittent occlusion of a blood vessel
Inventor: MOHL WERNER
IPC: A61M60/205
Filed: 2010-02-19
Abstract: The implanting device has an occlusion unit (3), which is positioned in the blood vessel, a sensor (5) for continuously recording a physiological measuring value and an implanted control device (4). An implanted anchoring unit is provided, on which the occlusion unit is fixed for positioning the occlusion unit relative to the blood vessel.
Patent PT-667912-E (PT)
Title: Defective adenovirus vectors and use thereof in gene therapy
Inventor: PERRICAUDET MICHEL
IPC: A61P35/00
Filed: 1994-07-08
Abstract: Novel adenovirus-derived viral vectors, the preparation thereof, and the use thereof in gene therapy, are disclosed.
Patent PT-772450-E (PT)
Inventor: KAYE JAMES A
IPC: A61K38/20
Filed: 1995-04-27
Abstract: Provided by the present invention is a method for treating von Willebrand Disease (vWD) by administering IL-11. The present invention relates generally to novel methods for treating bleeding disorders and more specifically relates to methods for treating von Willebrand Disease (vWD) hemophilia A, and various hemostatic disorders such as uremia, cirrhosis, congenital platelet defects, congenital and acquired storage pool deficiency, patients with unexplained prolongations of bleeding time, as well as prophylactic treatment before surgeries.
Patent PT-879535-E (PT)
Inventor: KOCH ECKHARD
IPC: H04N19/60
Filed: 1996-06-14
Abstract: Disclosed is a method of marking binary-coded data sets, especially image data or audio signals, by applying at least one information unit to a data set. The invention is characterized by the generation of a discrete position sequence for the application of information units to the data set to be marked, taking into account data-specific characteristics and using a key; and by the fact that the information unit to be applied is written and read at the positions established in the position sequence in the data set.
Patent PT-854873-E (PT)
Inventor: TIFFIN PETER DAVID
IPC: C07D491/048
Filed: 1996-09-23
Abstract: PCT No. PCT/GB96/02334 Sec. 371 Date Aug. 20, 1998 Sec. 102(e) Date Aug. 20, 1998 PCT Filed Sep. 23, 1996 PCT Pub. No. WO97/11077 PCT Pub. Date Mar. 27, 1997A process for preparing a compound having formula (11), comprises oxidative cyclization of a tertiary amine having formula (12), wherein X1 is a removable functionality, X2 is hydrogen or a group as defined above for X1, and R1 is selected from hydrogen and alkyl, aryl, alkaryl and aralkyl groups having up to 20 carbon atoms, and R2 and R3 are independently selected from hydrogen and alkyl, aryl, alkaryl, aralkyl and acyl groups having up to 20 carbon atoms. Novel compounds are both used and produced by that process.
Patent PT-870342-E (PT)
Inventor: MALE STEWART ERNEST
IPC: H01M8/02
Filed: 1996-12-19
Abstract: PCT No. PCT/GB96/03162 Sec. 371 Date Dec. 2, 1998 Sec. 102(e) Date Dec. 2, 1998 PCT Filed Dec. 19, 1996 PCT Pub. No. WO97/24778 PCT Pub. Date Jul. 10, 1997A method of fabricating an electrochemical or galvanic cell comprising a plurality of electrochemical components, which electrochemical components are joined together in a stack, which method comprises: i) providing a first component formed from a deformable polymeric material with at least one substantially continuous groove comprising a female opening having a width of "w" and a depth of "h"; ii) providing a second component with at least one substantially continuous upstand having a width of >"w" and a height of <"h"; iii) pressing the first and second components together in order to provide an integral seal between the upstand on the second component and the opening in the first component, with the seal between the parts being provided by sealing engagement of the sides of the upstand with the sides of the openings; and iv) joining a plurality of first and second components together to form a stack.
Patent PT-966726-E (PT)
Inventor: BLOME RAINER
IPC: G05B19/12
Filed: 1998-02-11
Abstract: The invention relates to a method and apparatus for producing card-shaped data carriers. The method has at least one production step requiring a data carrier of a defined type or quality or in a defined position and/or changing the data carrier in irreversible fashion or in a fashion which can be reversed only by additional expense. The data carrier is optically tested before or after said production step, and the further processing of the data carrier controlled depending on the result of said test.
Patent PT-991424-E (PT)
Inventor: CAREY FRANK
IPC: A61K31/426
Filed: 1998-07-02
Abstract: The invention relates to pharmaceutical compositions comprising an aldose reductase inhibitor and an ACE inhibitor, and their use in the treatment of diabetic complications such as diabetic neuropathy, diabetic retinopathy and diabetic nephropathy.
Patent PT-999750-E (PT)
Inventor: GREENLAND ANDREW JAMES
IPC: A01N65/00
Filed: 1998-07-09
Abstract: Antifungal compositions having enhanced antifungal activity comprising an antifungal agent and a food additive are described. Also described are a method for inhibiting fungal growth using the compositions with enhanced activity and the use of a food additive to enhance the antifungal properties of an antifungal agent.
Patent PT-1026167-E (PT)
Inventor: OKADA YUMIKO
IPC: A61P37/08
Filed: 1998-09-29
Abstract: Tricyclic triazolobenzazepine derivatives in the form of a prodrug are provided. The compounds according to the present invention are those represented by formula (I) and pharmacologically acceptable salts and solvates thereof. The compounds are useful as antiallergic agents and exhibit excellent bioavailability. <CHEM>  wherein R<1> represents hydrogen, OH, alkyl or phenyl alkyl,   R<2>, R<3>, R<4>, and R<5> represent hydrogen, halogen, optionally protected hydroxyl, formyl, optionally substituted alkyl, alkenyl, alkoxy or the like, and Q represents a group selected from the following groups (i) to (iv), halogen, or alkoxy: <CHEM>
Patent PT-1047379-E (PT)
Inventor: COTTERET JEAN
IPC: A61K8/66
Filed: 1998-12-21
Abstract: The invention concerns a ready-to-use oxidation composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair comprising, in a medium suitable for dyeing, at least one oxidation colouring agent, at least an acid direct colouring agent comprising in its structure at least a sulphonic function or at least a carboxylic function, and at least an enzyme such as laccase, as well as the dyeing method using said composition.
Patent PT-1056736-E (PT)
Inventor: CHANDER MADHAVI C
IPC: A61K31/337
Filed: 1999-01-21
Abstract: A method of acylating 10-deacetylbaccatin III at the C-10 position over the C-7 hydroxy position thereof to produce baccatin IIII is accomplished first by dissolving 10-deacetylbaccatin III in an acceptable ether solvent therefor, such as tetrahydrofuran. A lithium salt, preferably lithium chloride, is added. A trialkylamine base or pyridine is next added, followed by the addition of an acylating agent, such as acetyl chloride. The resulting solution may be quenched, for example with ammonium chloride, to eliminate excess of the acylating agent. The result is baccatin III in solution. This solution may then be diluted with ethyl acetate to form an organic phase and an aqueous phase, with the organic phase being washed and thereafter reduced. Recrystallization and column chromatography may be employed to purify the baccatin III.
Patent PT-1125459-E (PT)
Inventor: MUHONEN AHTI
IPC: H04W64/00
Filed: 1999-10-26
Abstract: A method for providing location service information related to a mobile station in a mobile communications system supporting connections of a first type, for example circuit-switched, and a second type, for example packet-switched. The method comprises receiving a request from a requesting entity; retrieving the location service information related to the mobile station; and providing a response to the request. The method further comprises determining a preferred type of connection for the retrieving based on a first set of predetermined criteria; and performing, in the retrieving, at least a first attempt via a preferred type of connection.
Patent PT-1115701-E (PT)
Inventor: HOUZE JONATHAN B
IPC: C07D249/14
Filed: 1999-09-21
Abstract: The invention provides compounds, compositions and methods relating to novel arylsulfonanilide derivatives and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particularly cancer, psoriasis, vascular restenosis, infections, atherosclerosis and hypercholesterolemia, or as lead compounds for the development of such agents.
Patent SG-10889-G (SG)
Title: Semicarbazides,their preparation and use
IPC: C07D239/94
Filed: 1989-02-15
Abstract: Compounds of the formula   <IMAGE>   wherein R1 is hydrogen, alkyl of 1 to 4 carbon atoms or trifluoromethyl; R2, R3 and R4 are each independently hydrogen, methyl or ethyl; R5 is hydrogen, alkyl of 1 to 8 carbon atoms, phenyl-(alkyl of 1 to 8 carbon atoms), cycloalkyl of 3 to 7 carbon atoms, (alkoxy of 1 to 4 carbon atoms) carbonyl-methyl, phenyl, substituted phenyl, naphthyl or substituted naphthyl; or R4 and R5, together with each other, are alkylene of 4 to 5 carbon atoms, optionally interrupted by -O- or -NR6-, where R6 is alkyl of 1 to 4 carbon atoms; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as cardiotonics.
Patent IE-860176-L (IE)
Title: Diagnostic method for diseases having an arthritic component
IPC: A61K39/00
Filed: 1986-01-21
Abstract: A method is disclosed for the diagnosis of diseases having an arthritic component such as rheumatoid arthritis and osteoarthritis which comprises determining the deficiency of galactose in a sample of the patient's blood serum or plasma, or synovial fluid, or an Ig component or fragment thereof in comparison with the corresponding normal values of galactose.
Patent IE-44860-L (IE)
Title: Piperidylacetonylquinazolinone
IPC: E06B1/26
Filed: 1977-01-31
Abstract: The novel product, dextrorotary 7-bromo-6-chloro-3-[3-(3-hydroxy-2-piperidyl)-acetonyl]-4(3H)-quinazol inone and its non-toxic, pharmaceutically acceptable acid addition salts having anticoccidiosis activity and its preparation and use.
[US4252947A]
Patent IE-40282-L (IE)
Title: Spirolactone and 17ó-dicarboxyethyl steroid derivatives.
IPC: C07J21/00
Filed: 1974-02-06
Abstract: The present invention relates to a dienic derivative of the androstane series having the formula WHEREIN R is a member selected from the group consisting of hydrogen, alkyl having 1 to 4 carbon atoms and alkali metal, R' and R'' are members selected from the group consisting of 1) hydrogen and -COOM, respectively, where M is alkali metal, and 2) taken together, the divalent -C- PARALLEL O group, R2 is a member selected from the group consisting of hydrogen and methyl, with the proviso when R is hydrogen or alkyl having 1 to 4 carbon atoms, R' and R'' together are the divalent -C- PARALLEL O group; as well as their process of preparation.
[US3919198A]