DE3767900D1 - Trennungsmittel fuer optische isomeren, herstellungsverfahren und verwendung. - Google Patents

Trennungsmittel fuer optische isomeren, herstellungsverfahren und verwendung.

Info

Publication number
DE3767900D1
DE3767900D1 DE8787104864T DE3767900T DE3767900D1 DE 3767900 D1 DE3767900 D1 DE 3767900D1 DE 8787104864 T DE8787104864 T DE 8787104864T DE 3767900 T DE3767900 T DE 3767900T DE 3767900 D1 DE3767900 D1 DE 3767900D1
Authority
DE
Germany
Prior art keywords
optical isomers
production process
release agent
optical
racemoid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8787104864T
Other languages
English (en)
Inventor
Toshinobu Miwa
Teiichi Hattori
Masanori Tsuno
Masaki Ichikawa
Takeshi Niyakawa
Yasuo Miyake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eisai R&D Management Co Ltd
Original Assignee
Eisai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eisai Co Ltd filed Critical Eisai Co Ltd
Application granted granted Critical
Publication of DE3767900D1 publication Critical patent/DE3767900D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/281Sorbents specially adapted for preparative, analytical or investigative chromatography
    • B01J20/286Phases chemically bonded to a substrate, e.g. to silica or to polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/281Sorbents specially adapted for preparative, analytical or investigative chromatography
    • B01J20/29Chiral phases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/3092Packing of a container, e.g. packing a cartridge or column
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204Inorganic carriers, supports or substrates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3206Organic carriers, supports or substrates
    • B01J20/3208Polymeric carriers, supports or substrates
    • B01J20/3212Polymeric carriers, supports or substrates consisting of a polymer obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3214Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
    • B01J20/3217Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond
    • B01J20/3219Resulting in a chemical bond between the coating or impregnating layer and the carrier, support or substrate, e.g. a covalent bond involving a particular spacer or linking group, e.g. for attaching an active group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244Non-macromolecular compounds
    • B01J20/3246Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244Non-macromolecular compounds
    • B01J20/3246Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3255Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising a cyclic structure containing at least one of the heteroatoms nitrogen, oxygen or sulfur, e.g. heterocyclic or heteroaromatic structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244Non-macromolecular compounds
    • B01J20/3246Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3257Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244Non-macromolecular compounds
    • B01J20/3246Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3257Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such
    • B01J20/3263Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such comprising a cyclic structure containing at least one of the heteroatoms nitrogen, oxygen or sulfur, e.g. an heterocyclic or heteroaromatic structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/32Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3268Macromolecular compounds
    • B01J20/3272Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
    • B01J20/3274Proteins, nucleic acids, polysaccharides, antibodies or antigens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/50Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/54Sorbents specially adapted for analytical or investigative chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/50Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/58Use in a single column
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00Chemistry: molecular biology and microbiology
    • Y10S435/814Enzyme separation or purification
    • Y10S435/815Enzyme separation or purification by sorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pyridine Compounds (AREA)
DE8787104864T 1986-04-02 1987-04-02 Trennungsmittel fuer optische isomeren, herstellungsverfahren und verwendung. Expired - Lifetime DE3767900D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61074369A JPH0713030B2 (ja) 1986-04-02 1986-04-02 光学異性体用分離剤

Publications (1)

Publication Number Publication Date
DE3767900D1 true DE3767900D1 (de) 1991-03-14

Family

ID=13545178

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787104864T Expired - Lifetime DE3767900D1 (de) 1986-04-02 1987-04-02 Trennungsmittel fuer optische isomeren, herstellungsverfahren und verwendung.

Country Status (8)

Country Link
US (1) US5030354A (de)
EP (1) EP0240013B1 (de)
JP (1) JPH0713030B2 (de)
AT (1) ATE60757T1 (de)
CA (1) CA1292732C (de)
DE (1) DE3767900D1 (de)
ES (1) ES2019895B3 (de)
GR (1) GR3001439T3 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2947924B2 (ja) * 1990-11-21 1999-09-13 信和化工株式会社 光学異性体用分離剤
US5354461A (en) * 1991-02-20 1994-10-11 Eisai Co., Ltd. Packings combining protein to a support via a spacer
CA2061519C (en) * 1991-02-20 2004-05-18 Naoki Asakawa Packings combining protein to a support via a spacer
JP3121072B2 (ja) * 1991-10-09 2000-12-25 エーザイ株式会社 コンアルブミンが結合した光学異性体分離剤
DE4206539A1 (de) * 1992-03-02 1993-09-09 K D Pharma Gmbh Verfahren zum gewinnen ungesaettigter fettsaeuren
EP1366809B1 (de) 2001-03-07 2007-09-05 Daicel Chemical Industries, Ltd. Trennmittel für optisches isomer
US7156989B2 (en) 2001-04-27 2007-01-02 Daicel Chemical Industries, Ltd. Separating agent including polysaccharide derivative having a polycyclic structure
US6736967B2 (en) 2001-06-07 2004-05-18 Daicel Chemical Industries, Ltd. Separating agent for enantiomeric isomers
US20040149660A1 (en) * 2001-06-15 2004-08-05 Natsuki Kasuya Separatory agent for optical isomer
JP4130625B2 (ja) 2001-07-06 2008-08-06 ダイセル化学工業株式会社 新規な光学異性体分離用分離剤の製造方法
US6691880B2 (en) * 2001-07-12 2004-02-17 Konstant Products, Inc. Pick deck
JP3504655B2 (ja) * 2001-12-06 2004-03-08 新日本製鐵株式会社 プレス成形性と作業性に優れたフェライト系ステンレス鋼板およびその製造方法
JP2004003935A (ja) * 2002-04-12 2004-01-08 Daicel Chem Ind Ltd 擬似移動床式クロマトグラフィー用光学異性体分離用充填剤
DE602004032335D1 (de) * 2003-04-24 2011-06-01 Daicel Chem Trennbares mittel für optischen isomer
EP1637542A4 (de) * 2003-04-24 2007-04-04 Daicel Chem Trennmittel für optisches isomer
KR101011780B1 (ko) 2003-04-24 2011-02-07 다이셀 가가꾸 고교 가부시끼가이샤 광학이성체용 분리제
JP2006150214A (ja) 2004-11-29 2006-06-15 Daicel Chem Ind Ltd 光学異性体用分離剤及び光学異性体用分離カラム
EP2957575B1 (de) 2013-02-12 2017-10-18 National University Corporation Kanazawa University Optisch aktive poly(diphenylacetylen)verbindung, herstellungsverfahren dafür und verwendung als optisches isomertrennmittel
JP6267009B2 (ja) * 2013-08-29 2018-01-24 株式会社ダイセル 光学異性体用分離剤
CN108918718B (zh) * 2018-07-26 2021-05-04 承德市食品药品检验检测中心 一种莨菪碱和东莨菪碱的检测方法
CN111198239A (zh) * 2018-11-19 2020-05-26 广州医药研究总院有限公司 血浆阿莫西林浓度的hplc-ms/ms检测方法
CN110404520B (zh) * 2019-07-18 2021-07-13 中国科学院兰州化学物理研究所 一种烷基咪唑型离子液体功能化奎宁硅胶色谱固定相的制备及应用
CN110560002B (zh) * 2019-09-16 2022-02-25 未名环境分子诊断(广东)有限公司 一种用于污水中苯丙胺类精神活性药物被动采集的吸附材料及其制备方法

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Publication number Priority date Publication date Assignee Title
US3983001A (en) * 1972-05-10 1976-09-28 Ceskoslovenska Akademie Ved Isolation of biologically active compounds by affinity chromatography
US3886043A (en) * 1972-08-24 1975-05-27 Choay Sa Process for preparing pure porcine beta-trypsin
US4020268A (en) * 1972-11-13 1977-04-26 Xerox Corporation Agarose containing affinity matrix materials
US3888738A (en) * 1973-10-31 1975-06-10 Hayashibara Kabushiki Kaisha Method for purifying cyclodextrin-producing enzymes
DE2442995C2 (de) * 1974-09-07 1982-06-09 Bayer Ag, 5090 Leverkusen Proteasefreie Kallikreinlösungen, ein Verfahren zu ihrer Herstellung aus gereinigtem Kallikrein und ihre Verwendung als Arzneimittel
US4206094A (en) * 1976-06-09 1980-06-03 California Institute Of Technology Method for producing a biological reagent
US4157323A (en) * 1976-06-09 1979-06-05 California Institute Of Technology Metal containing polymeric functional microspheres
SE445649B (sv) * 1983-06-08 1986-07-07 Jorgen Hermansson Anvendning av en fast berare med immobiliserad orosomucoid for separation, forfarande for framstellning av separationsmaterial, separationsanordning samt separationsmaterial
YU144584A (en) * 1983-08-25 1987-06-30 Akad Wissenschaften Ddr Process for making n-(chlorocarbonyloxi)-s-norbornen-2,3-dicarboximide
JPS60165549A (ja) * 1984-02-07 1985-08-28 Seitetsu Kagaku Co Ltd 抗工抗体吸収剤
DE3524427C1 (de) * 1985-07-09 1986-12-18 Harold Prof. Dr. 8700 Würzburg Rüdiger Einstufiges Verfahren zur Isolierung und Auftrennung der Isolectine aus der Gartenbohne (Phaseolus vulgaris)

Also Published As

Publication number Publication date
US5030354A (en) 1991-07-09
JPS63307829A (ja) 1988-12-15
EP0240013A3 (en) 1988-07-20
ATE60757T1 (de) 1991-02-15
ES2019895B3 (es) 1991-07-16
EP0240013B1 (de) 1991-02-06
GR3001439T3 (en) 1992-09-25
CA1292732C (en) 1991-12-03
JPH0713030B2 (ja) 1995-02-15
EP0240013A2 (de) 1987-10-07

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