baber/WOPTO huggingface dataset:
Patent IT-1251008-B (IT)
Title: Dispositivo di comando e regolazione a distanza particolarmente per sistemi a forza motrice elettrica, sistemi d'illuminazione e simili
IPC: H01H/
Filed: 1991-08-12
Granted: 1995-04-28
Abstract: Dispositivo di comando e regolazione a distanza particolarmente per sistemi a forza motrice elettrica, sistemi d'illuminazione e simili comprendente un trasmettitore ed un ricevitore. Il trasmettitore comprende mezzi di variazione di intensità che generano un segnale che viene codificato in modo univoco da un codificatore, quest'ultimo genera un segnale che viene trasmesso da mezzi di trasmissione a radiofrequenza verso un ricevitore. Il ricevitore presenta mezzi di ricezione e decodifica del segnale in radiofrequenza e pilotano mezzi reversibili di collegamento fra un'alimentazione di rete ed un carico elettrico. Il trasmettitore ed il ricevitore sono alimentati autonomamente.
Patent IT-1256627-B (IT)
Title: Pressa continua per lo stampaggio di stuoie di materiale stampabile
IPC: B27N3/24
Filed: 1992-12-04
Granted: 1995-12-12
Abstract: Pressa continua per lo stampaggio di stuoie di materiale stampabile nell'ambito della fabbricazione di pannelli truciolari di legno, pannelli fibrosi di cemento, pannelli fibrosi di gesso, pannelli di laminato e simili, con: parte superiore della pressa con piastra premente riscaldabile, parte inferiore della pressa con piastra premente riscaldabile, nastri prementi di lamiera di acciaio che formano una fessura di stampaggio, azionati e guidati nella parte superiore e nella parte inferiore della pressa attraverso tamburi di rinvia, e barre volventi guidate in circolo, le quali sono collegate a catene circolanti per mezzo di perni di collegamento inseriti sul lato frontale delle barre volventi. Le barre volventi presentano un diametro di	5-25 mm, preferibilmente di circa 20 mm. Esse formano tra i nastri prementi di lamiera di acciaio e le piastre prementi rispettivamente un cuscinetto volvente, le quali barre volventi, con una forza premente variante da 300 a 600 N/cm2 e preferibilmente di circa 500 N/cm2. sono in contatto ad attrito volvente con le piastre prementi ed i nastri prementi di lamiera di acciaio. Le barre volventi sono realizzate come tubi, il cui spessore di parete è maggiore di 2 mm ed è previsto in modo che i tubi praticamente non si deformino per effetto della forza presente nella zona della fessura di stampaggio. I tubi soddisfano inoltre particolari condizioni, con riferimento a massa e momento di inerzia superficiale. Le barre volventi sporgono, con sporgenze su entrambi i lati, oltre i nastri presenti di lamiera di acciaio. I perni di collegamento sono inseriti in dette sporgenze.
Patent IT-1271907-B (IT)
Title: Dispositivo di tenuta particolarmente per serramenti e simili
Inventor: VENCHIARUTTI FRANCO
IPC: E06B3/62
Filed: 1993-01-07
Granted: 1997-06-10
Abstract: Il presente trovato si riferisce ad una struttura di profilati per serramenti con mezzi per l'uniformazione di traversi e zoccolature che presenta la peculiarità di comprendere un profilato traverso avente una sezione sostanzialmente a T con un gambo che si sviluppa da un'ala frontale che definisce, alle sue estremità, sedi di accoppiamento rivolte verso il citato gambo. Le citate sedi di accoppiamento giacciono in un piano che presenta una distanza dal piano parallelo, posto all'estremità di detto gambo, uguale alla distanza tra il piano di giacitura delle sedi per guarnizioni sull'ala esterna dei profilati d'anta e di telaio ed il piano della faccia interna di detti profilati d'anta e di telaio.
Patent IT-1270817-B (IT)
Inventor: FIUME LUIGI
IPC: A61K47/48
Filed: 1993-05-26
Granted: 1997-05-09
Abstract: By carrying out the conjugation of the antiviral drugs such as ara-AMP, acyclovir and the like with a carrier selected among basic polyaminoacids and, particularly, with poly-L-lysine or poly-L-ornythine wherein the major part of the amino groups, which are not substituted by antiviral drugs, are substituted by galactose molecules, the intramuscular administration of the drug without antibodies formation, without acute toxicity and with a hepatic targeting, is made possible.
Patent PT-103458-B (PT)
Title: Compósitos de lenhocelulósicos e materiais de mudança de fase para isolamento térmico e armazenamento de energia
Inventor: COUTINHO JOAO MANUEL DA COSTA
IPC: F24V50/00
Filed: 2006-04-04
Abstract: A PRESENTE INVENÇÃO DIZ RESPEITO À FORMULAÇÃO E PREPARAÇÃO DE MATERIAIS COMPÓSITOS BASEADOS EM MATERIAIS LENHOCELULÓSICOS INCORPORANDO MATERIAIS DE MUDANÇA DE FASE COM VISTA À SUA APLICAÇÃO EM ISOLAMENTO TÉRMICO E ARMAZENAMENTO REVERSÍVEL DE ENERGIA. OS MATERIAIS LENHOCELULÓSICOS CONFEREM AO COMPÓSITO PROPRIEDADES DE ISOLAMENTO TÉRMICO, PROPORCIONANDO TAMBÉM UM SUPORTE PARA O MATERIAL DE MUDANÇA DE FASE QUE PERMITE ESTRUTURÁ-LO E SUSTENTÁ-LO QUANDO EM FASE LÍQUIDA BEM COMO ELIMINAR OS INCONVENIENTES RELACIONADOS COM A VARIAÇÃO DE VOLUME RESULTANTES DA MUDANÇA DE FASE. O MATERIAL DE MUDANÇA DE FASE PODE SER INCORPORADO EM QUANTIDADES ELEVADAS NESTES COMPÓSITOS CONFERINDO-LHES UMA IMPORTANTE CAPACIDADE DE ARMAZENAMENTO REVERSÍVEL DE ENERGIA. O COMPÓSÍTO RESULTANTE PERMITE OBVIAR AOS PRINCIPAIS PROBLEMAS ASSOCIADOS À UTILIZAÇÃO DE MATERIAIS DE MUDANÇA DE FASE EM DIVERSAS APLICAÇÕES E UNIR NUM ÚNICO MATERIAL AS CARACTERÍSTICAS DE ISOLANTE TÉRMICO E DE ARMAZENAMENTO DE ENERGIA.
Patent PT-104012-B (PT)
Inventor: PEQUENO JOSE MANUEL BOTAS
IPC: E04C2/54
Filed: 2008-04-03
Abstract: The present invention refers to a timber-glass composite panel for construction, in which these materials simultaneously assume a functional, aesthetic and structural nature. The panel may be utilised both as a slab or load-bearing wall, despite its orientations, thus allowing constructive modularity based on habitational evolutiveness principles, mass production, prefabrication and consequent transportability. The panel envisages the integration of passive solar systems and bioclimatic, eco-efficient functions.  The panel comprises a timber substructure  [5]  and two simple laminated structural panes of glass  [7],  one on each side of the substructure wherein the bonding is carried out by means of a single-component structural adhesive  [8]  with semi-stiff behaviour after drying. The substructure consists of several timber boards  [1]  arranged in parallel, interspersed by timber blocks  [2]  and fixed with threaded steel rods  [3].  Should the panel serve as a wall, sliding windows can additionally be included, one on the interior face  [6]  and the other on the exterior face  [14],  so as to allow ventilation.
Patent PT-109432-B (PT)
Title: Método de síntese de 9-tiabicicl0[3.3.1]nonano-2,6-diona recorrendo a ácido sucínico num meio com dióxido de carbono e num líquido iónico proveniente de biomassa, realizado num único passo
Inventor: EWA BOGEL-LUKASIK
IPC: C07D451/00
Filed: 2016-06-07
Abstract: A PRESENTE PEDIDO DIVULGA UM MÉTODO DE SÍNTESE DO COMPOSTO QUÍMICO 9-TIABICICLO[3.3.1]NONANO-2,6-DIONA, RECORRENDO A ÁCIDO SUCÍNICO PROVENIENTE DE BIOMASSA NUM MEIO COM DIÓXIDO DE CARBONO E LÍQUIDO IÓNICO, REALIZADO NUM ÚNICO PASSO. O MÉTODO AQUI DESCRITO É CARACTERIZADO POR RECORRER A COMPOSTOS NÃO TÓXICOS, NÃO-INFLAMÁVEIS, E, EM CONDIÇÕES DE DIÓXIDO DE CARBONO EM ELEVADA PRESSÃO, CONFERINDO CONDIÇÕES DE SÍNTESE DE 9-TIABICICLO[3.3.L]NONANO-2,6-DIONA ESPECÍFICAS PARA PRODUÇÃO CONTÍNUA E RENOVÁVEL DESTE COMPOSTO QUÍMICO. O PRESENTE MÉTODO DE SÍNTESE AQUI DIVULGADO BASEIA-SE NUM PROCESSO ÚNICO QUE JUNTA: 1)DIÓXIDO DE CARBONO, EM CONDIÇÕES DE ELEVADA PRESSÃO; 2) UM LÍQUIDO IÓNICO, O 1-BUTIL-3-METILIMIDAZÓLIO HIDROGÉNIO SULFATO; 3) UM CATALISADOR HETEROGÉNIO. O MÉTODO DE SÍNTESE AQUI APRESENTADO CONSISTE NUM PROCESSO DE HIDROGENAÇÃO RELEVANTE PARA UMA TRANSFORMAÇÃO SELETIVA DE HIDRATOS DE CARBONO. PARA A REALIZAÇÃO DESTE MÉTODO É POSSÍVEL UTILIZAR BIOMASSA, UMA MATÉRIA-PRIMA RICA EM HIDRATOS DE CARBONO, PELA DIMERIZAÇÃO DO ÁCIDO COM UM ÁTOMO DE ENXOFRE.
Patent PT-116915-B (PT)
Title: Método para a extração de colagénio purificado de matrizes biológicas
Inventor: SÓNIA PATRÍCIA MARQUES VENTURA
IPC: C07K14/78
Filed: 2020-12-03
Abstract: A PRESENTE INVENÇÃO DESCREVE UM MÉTODO PARA A OBTENÇÃO DE COLAGÉNIO TIPO I DE MATRIZES BIOLÓGICAS. ESTE MÉTODO COMPREENDE ESSENCIALMENTE TRÊS ETAPAS PRINCIPAIS: PREPARAÇÃO E REMOÇÃO DE CONTAMINANTES DA BIOMASSA; EXTRAÇÃO DO COLAGÉNIO; E RECUPERAÇÃO DO COLAGÉNIO PURIFICADO NA SUA FORMA SÓLIDA. A PRIMEIRA ETAPA DESCREVE A PREPARAÇÃO DE BIOMASSA COM A SUA MOAGEM POR PROCESSO MECÂNICO, REMOÇÃO DAS PROTEÍNAS NÃO-COLAGÉNICAS E REMOÇÃO DE GORDURAS RECORRENDO AO USO DE UMA SOLUÇÃO ALCALINA E UMA SOLUÇÃO ALCOÓLICA, RESPETIVAMENTE, PARA OBTENÇÃO DE UMA MATRIZ MAIS PURA EM COLAGÉNIO TIPO I. A SEGUNDA ETAPA COMPREENDE A EXTRAÇÃO SÓLIDO-LÍQUIDO DO TEOR DO COLAGÉNIO DA MATRIZ COM O USO DE UMA SOLUÇÃO AQUOSA DE UM SOLVENTE EUTÉCTICO PROFUNDO DE PH ÁCIDO. POR FIM, O TEOR DE COLAGÉNIO É RECUPERADO COM A AÇÃO DE UM AGENTE PRECIPITANTE, DIÁLISE E SECAGEM. O COLAGÉNIO OBTIDO COM APLICAÇÃO NAS ÁREAS ALIMENTAR, FARMACÊUTICA, MÉDICA, COSMÉTICA, BIOMÉDICA E NA ENGENHARIA DE TECIDOS.
Patent RO-82209-B (RO)
Inventor: SCHWAPPACH DIETER
IPC: E02F3/38
Filed: 1980-02-16
Abstract: Inventia are ca obiect o articulatie pentru cupa de excavator prevazuta într-un punct de rotatie aflat la capatul liber al bratului. Pentru ca în zona punctului de rotatie dintre partea superioara dintre aceasta a bratului sa nu ajunga material aruncat în timpul functionarii excavatorului sau cazut din cupa, la extremitatea libera a bratului este prevazuta cu un capac îndreptat spre partea superioara a cupei articulate în punctul de rotatie, capacul avînd o raza, a carui centru se gaseste în punctul de rotatie si ca pe partea superioara dinspre brat a lingurii ce conlucreaza cu o cama de raclare corespund latimii bratului, încît între capac si o lama de raclare ramîne doar un loc care permite miscarea libera a cupei, prelungirea virtuala alamei de raclare paralela cu muchia superioara a scutului de lagar intersectînd raza capacului într-un punct aflat pe talpa superioara a bratului.
Patent RO-83712-B (RO)
Inventor: D FELIPE PINEDA
IPC: B01D53/81
Filed: 1981-09-21
Abstract: Procedeul, efectueaza prima si a treia treapta de fermentatie în masa organica aeroba a filtrului, iar cea de-a doua anaeroba, asigurîndu-se alimentarea aerului în zonele unde au loc prima si a treia treapta de fermentatie cît si absorbtia gazelor si lichidelor formate în a doua treapta de fermentare, în vederea mentinerii înaltimii fiecarei trepte, cît si a conditiilor predeterminate de umiditate între limitele care activeaza procesul de epurare, reconditionarea masei ce formeaza corpul filtrului relizîndu-se la sfîrsitul celei de-a treia trepte de fermentare, prin absorbtia masei descompuse si a produselor inofensive ale reziduurilor antrenate de masa filtrant, în timp ce noua masa respectiva si rezidurile ce trebuie înlaturate sa parcurga treptat cele trei trepte de fermentare, în asa fel, încît masa respectiva si rezidurile ce trebuie înlaturate sa parcurga treptat, cele trei trepte de fermentare, asigurîndu-se astfel deplina descompunere a rezidurilor si mentinerea conditiilor vitale pentru microorganismele celor trei trepte de fermentare din suportul de filtrare. Instalarea pentru aplicarea procedeului, conform inventiei, este prevazuta cu un rezervor vertical, deschis la capatul sau inferior, dedesubtul caruia este amplasata o fundatie pentru sustinerea masei filtrante, în interiorul rezervorului fiind prevazute niste tuburi care comunica la capatul superior cu atmosfera cît si un tub central de evacuare........
Patent TW-206981-B (TW)
IPC: C09D5/00
Filed: 1992-06-25
Granted: 1993-06-01
Abstract: Hydrophilic coating compositions including, on a solid basis, (a) 0.3-6 percent by weight of polyvinyl pyrrolidone having a polymerization degree of 10-1000; and (b) 1-10 percent by weight of polyvinyl alcohol having a saponification degree of 80% or more and a polymerization degree of 100-1000, the weight ratio of the component (a) to the components (a) and (b), (a)/[(a)+(b)], being in the range of 0.1-0.9, are useful (a)/[(a)+(b)], being in the range of 0.1-0.9, are useful for imparting corrosion resistance and hydrophilic nature to aluminum articles such as heat exchanger fins.
Patent TW-209303-B (TW)
IPC: H01F7/02
Filed: 1992-07-10
Granted: 1993-07-11
Abstract: A magnetic body (121) consists of a plurality of individual bodies (101) each of which is an individual magnet whose exposed base surface (103) is constructed as a north pole or as a south pole and whose other surfaces, which are covered by materials that are magnetically not present and by a separating material, screen the other pole. Since, for example, the south poles of all the individual magnet bodies (101) are located inside the main body (121), the totality of the region at a distance from the surface (103) of the main body (121) represents a north pole. If the north poles and south poles are interchanged, a magnet body having a monopolar surface representing a south pole can, of course, be produced. The supporting arrangement has radially magnetised ring magnets which are arranged one above the other axially in the shaft and, on the stator part, annular, likewise radially magnetised, magnets which are opposite the magnets and consist of a large number of assembled other surfaces which, with the exception of the "effective" surface are, however, screened by a separating material. For axial support, annular, axially magnetised magnets are placed on the shaft, and analogous, annular, axially magnetised magnets are placed on discs on the housing with a mutual separation, the construction of which magnets likewise consists of encapsulated individual magnets. <IMAGE>
Patent TW-225558-B (TW)
IPC: C23C8/22
Filed: 1992-10-01
Granted: 1994-06-21
Abstract: The carburising process according to the invention consists in heating the articles to be treated to a temperature of between 800 DEG C and 1100 DEG C, preferably above 900 DEG C, in an oxygen-free gaseous atmosphere maintained by pumping at a pressure of between 1 and 5 mbar and in performing a plurality of successive carbon-enrichment stages (C1, C2), each obtained by an injection for a limited period of a treatment gas containing one or a number of pure hydrocarbons, each enrichment stage (C1, C2) having a duration shorter than the time for the change of austenite into a saturation stage, these enrichment stages being separated by vacuum diffusion stages (D1, D2) of longer duration making it possible to adjust the surface carbon content. The invention makes it possible to simplify the mechanism of carbon transfer and to avoid the detrimental effects of overcarburising.
Patent TW-256881-B (TW)
IPC: C12N15/09
Filed: 1993-07-07
Granted: 1995-09-11
Abstract: A probe for diagnosing infectious diseases in which the probe comprises the base sequence set out in SEQ. ID. No. 7 and specifically reacts with DNA of Staphylococcus epidermidis.
Patent TW-239116-B (TW)
IPC: C07C205/53
Filed: 1993-10-12
Granted: 1995-01-21
Abstract: This invention relates to intermediates and processes thereto, for the preparation of 5,6-dihydropyrrolo[2,3-d]pyrimidines which are useful for the treatment of susceptible neoplasms.
Patent TW-230228-B (TW)
Title: Methods for manufacturing columnar structures and for reinforcing members in a metal fiber reinforced concrete sleeve
Inventor: LLOYD E HACKMAN
IPC: E04C3/34
Filed: 1993-12-30
Granted: 1994-09-11
Abstract: A method for manufacturing a reinforced cementitious columnar structure comprising: providing a mold , the cavity of which corresponds to the shape and size of said columnar structure; placing at least one nonwoven metal fiber mat into said cavity around the periphery thereof so as to form a core volume internally of said mat; introducing a slurry of cementitious material containing a predetermined amount of aggregate having a particle size greater than the interstitial voids of said fiber mat into said core volume, said aggregate and said cementitious material filling said core volume and said cementitious material infiltrating and encapsulating said fiber mat, said aggregate remaining within said core volume; curing said reinforced cementitious columnar structure; and separating said mold from said reinforced cementitious columnar structure.
Patent TW-359862-B (TW)
Title: PTC conductive polymer protection device for surface mounting on a printed circuit board
Inventor: FANG SHOU-MEAN
IPC: H05K3/40
Filed: 1994-09-27
Granted: 1999-06-01
Abstract: Laminar electrical devices, in particular circuit protection devices, contain two laminar electrodes, with a PTC element between them, and a cross-conductor which passes through the thickness of the device and contacts one only of the two electrodes. This permits connection to both electrodes from the same side of the device. It also makes it possible to carry out the steps for preparing such devices on an assembly which corresponds to a number of individual devices, with division of the assembly as the final step.
Patent TW-351805-B (TW)
Title: Integral hub and disk clamp for a disk drive storage device
Inventor: BOUTAGHOU ZINE-EDDINE
IPC: G11B19/00
Filed: 1995-01-26
Granted: 1999-02-01
Abstract: A rotary disk drive storage device includes: a disk base plate; a rotatorily mounted disk for storing data, the disk having a rotary axial line and a cylindrical hole for the disk to rotate on the rotary hub; an integrally formed one piece hub/ clamp/ rotor for installation of the disk, the hub/clamp/rotor are rotatorily mounted on the axial line, the hub/clamp/rotor form a rotor housing for a motor rotor, the hub/clamp/rotor including a support means to support the disk and a clamping means to lock the disk in place; a set of rotor magnet attached to the hub/clamp/rotor of the rotor housing; a motor stator attached to the base plate to drive the rotor magnet; at least one change head to read and store the data on the disk; and a movable actuator, installed on the base plate of the disk, for moving the change head to read or to store data on the disk.
Patent TW-419464-B (TW)
Title: Use of substituted 4-phenyl-6-amino-nicotinic acid derivatives as medicaments
Inventor: URBAHNS KLAUS
IPC: A61P25/00
Filed: 1995-07-20
Granted: 2001-01-21
Abstract: The application relates to substituted 4-phenyl-6-amino-nicotinic acid derivatives for therapeutic use, to novel active compounds and to their use as cerebrally active agents. The active compounds are prepared by oxidizing appropriately substituted dihydropyridines according to customary methods.
Patent TW-305041-B (TW)
Title: Device for generating screen special effect
Inventor: JEAN SHENQ-FENG
IPC: G09G5/36
Filed: 1995-07-25
Granted: 1997-05-11
Abstract: A raster type display controller corresponding device, whose purpose is to display image on raster type display, in which the above raster type display includes displaying multiple scanning lines, and each scanning line includes multiple pixels and each pixel is represented by one linear pixel address, comprises of: (1) one line counter for supplying line counting value of processing scanned line; (2) one attribute array memory for storing one or multiple attribute record, each attribute record is stored based on its attribute address, and each attribute record includes attribute data related to one or more the above scanning lines, therefore generating special screen effect; (3) one pointer array memory for storing one series of attribute address pointer, the pointer array memory has one-to-one mapping relationship with the above scanning line, each pointer points to attribute address in the above attribute array memory; (4) one memory address generator for receiving corresponding attribute record of being processing scanning line from attribute array memory; the memory generator receives attribute pointer in attribute record to generate all pixel memory address of this scanning line, therefore generating one or multiple types of screen special effects.
Patent TW-278143-B (TW)
Title: Cleave and bevel fiber optic connector
Inventor: JAMES B CARPENTER
IPC: G02B6/42
Filed: 1995-07-31
Granted: 1996-06-11
Abstract: A device for interconnecting the bare ends of two or more optical fibers uses a common receptacle having a fiber clamping element therein and camming surfaces for actuating the element, and at least one plug having a camming finger for engaging one of the camming surfaces. The camming surfaces are located such that, when only one of the camming surfaces is actuated, the clamping element rocks to a side of the pocket opposite the one camming surface and remains in the open state, but when both of the camming surfaces are actuated, the clamping element is forced to the closed state. The plug includes a fiber protector free to slide within the plug housing, substantially enclosing the bare end of the fiber when the plug housing is removed from the receptacle, but retracting when the plug housing is inserted into the receptacle to direct the bare end of the fiber toward the guide tube. A fiber collet biases the terminal end of the fiber toward the forward end of the plug place a preload condition on the bare end of the fiber. The connector is particularly suited for cleave-and-bevel installations. The receptacle preferably uses a novel clamping element having two plate members with fiber-contacting surfaces, at least one of the fiber-contacting surfaces having a fiber-receiving groove. Edges of the plates are aligned and held together with a split tube spring. At least one of the plate members is provided with a wire-receiving groove and a wire therein which acts as a fulcrum to allow the plates to pivot along an axis defined by the wire. The split tube spring provides a precisely controlled load along the edges of the plates, allowing the opposite ends to be clamped together (within the guide tube) by a force suflicient to overcome the controlled load of the split tube spring.
Patent TW-310324-B (TW)
Inventor: HEINRICH MEIER
IPC: C07D211/90
Filed: 1995-11-17
Granted: 1997-07-11
Abstract: 2-Benzylidene-3-oxo-butyric acid malimide esters(II), enantiomerically pure aminocrotonic acid malimide esters (IIIa) and enantiomerically pure acetoacetic acid malimide esters (VI) are new. Benzylidene compounds of formula (II), enantiomerically pure aminocrotonic acid esters of formula (IIIa) and enantiomerically pure acetoacetic acid esters of formula (VI) are new. [Image] R2>phenyl substituted by 1 or 2 of halo, CN, ethynyl, OCF3, SMe, NO2, CF3, 1-4C alkyl, 2-4C alkenyl, 2-4C alkynyl or 1-4C alkoxy; A : H or 1-8C alkyl; or phenyl or benzyl (both optionally substituted by 1-3 of OH, NO2, halo, CN, COOH, CF3, OCF3 or 1-6C alkoxy or by NR6>R7> or SO2R8>); R6>, R7>H, Ph or 1-5C alkyl; R8>1-4C alkyl or Ph. Independent claims are also included for: (1) the preparation of enatiomerically pure (II), (IIIa) and (VI); and (2) the preparation of diastereomeric 1,4-dihydropyridines of formula (IVa) or (IVb) by: (a) reacting enatiomerically pure (II) with aminocrotonic acid ester of formula Me-C(NH2)=CH-COOR1> (III) in a solvent, optionally in presence of base; or (b) reacting enatiomerically pure (IIIa) with benzylidene compound of formula R2>-CH=C(COMe)-COOR1> (IIa) in a solvent, optionally in presence of base. [Image] R1>1-8C alkyl (optionally substituted by 1-6C alkoxy) or 3-7C cycloalkyl.