ATE244227T1 - 4,4'-diaminostilben-2,2'-disulfonsäurederivate - Google Patents

4,4'-diaminostilben-2,2'-disulfonsäurederivate

Info

Publication number
ATE244227T1
ATE244227T1 AT01111295T AT01111295T ATE244227T1 AT E244227 T1 ATE244227 T1 AT E244227T1 AT 01111295 T AT01111295 T AT 01111295T AT 01111295 T AT01111295 T AT 01111295T AT E244227 T1 ATE244227 T1 AT E244227T1
Authority
AT
Austria
Prior art keywords
diaminostilbene
acid derivatives
disulfonic acid
independently
hydrogen
Prior art date
Application number
AT01111295T
Other languages
English (en)
Inventor
Peter Rohringer
Georges Metzger
Dieter Reinehr
Original Assignee
Ciba Sc Holding Ag
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
Priority claimed from GBGB9706110.5A external-priority patent/GB9706110D0/en
Priority claimed from GBGB9709980.8A external-priority patent/GB9709980D0/en
Application filed by Ciba Sc Holding Ag filed Critical Ciba Sc Holding Ag
Application granted granted Critical
Publication of ATE244227T1 publication Critical patent/ATE244227T1/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D251/00Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/40Nitrogen atoms
    • C07D251/54Three nitrogen atoms
    • C07D251/68Triazinylamino stilbenes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/14Styryl dyes
    • C09B23/148Stilbene dyes containing the moiety -C6H5-CH=CH-C6H5
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40Dyes ; Pigments
    • C11D3/42Brightening agents ; Blueing agents
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60Optical bleaching or brightening
    • D06L4/614Optical bleaching or brightening in aqueous solvents
    • D06L4/621Optical bleaching or brightening in aqueous solvents with anionic brighteners
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60Optical bleaching or brightening
    • D06L4/657Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/70Multi-step processes
    • D06L4/75Multi-step processes combined with cleaning or washing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/02Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • D06M13/03Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons with unsaturated hydrocarbons, e.g. alkenes, or alkynes
    • D06M13/07Aromatic hydrocarbons
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35Heterocyclic compounds
    • D06M13/355Heterocyclic compounds having six-membered heterocyclic rings
    • D06M13/358Triazines
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642Compounds containing nitrogen
    • D06P1/6426Heterocyclic compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/30Luminescent or fluorescent substances, e.g. for optical bleaching
    • 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
    • Y10S8/00Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916Natural fiber dyeing
    • Y10S8/919Paper

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Detergent Compositions (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Led Device Packages (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
AT01111295T 1997-03-25 1998-03-14 4,4'-diaminostilben-2,2'-disulfonsäurederivate ATE244227T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9706110.5A GB9706110D0 (en) 1997-03-25 1997-03-25 Compounds
GBGB9709980.8A GB9709980D0 (en) 1997-05-17 1997-05-17 Compounds

Publications (1)

Publication Number Publication Date
ATE244227T1 true ATE244227T1 (de) 2003-07-15

Family

ID=26311253

Family Applications (2)

Application Number Title Priority Date Filing Date
AT01111295T ATE244227T1 (de) 1997-03-25 1998-03-14 4,4'-diaminostilben-2,2'-disulfonsäurederivate
AT98913720T ATE273290T1 (de) 1997-03-25 1998-03-14 Optische aufheller

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT98913720T ATE273290T1 (de) 1997-03-25 1998-03-14 Optische aufheller

Country Status (15)

Country Link
US (3) US6210449B1 (de)
EP (2) EP0971905B1 (de)
JP (1) JP2001518919A (de)
KR (1) KR100519872B1 (de)
CN (1) CN1168723C (de)
AT (2) ATE244227T1 (de)
AU (1) AU6831498A (de)
BR (1) BR9808058B1 (de)
CA (1) CA2284723A1 (de)
DE (2) DE69816135T2 (de)
ES (1) ES2226117T3 (de)
ID (1) ID22819A (de)
NO (1) NO314083B1 (de)
RU (1) RU2198168C2 (de)
WO (1) WO1998042685A1 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9726365D0 (en) * 1997-12-13 1998-02-11 Ciba Sc Holding Ag Compounds
CN1207627C (zh) * 1999-03-15 2005-06-22 西巴特殊化学品控股有限公司 去除摄影材料中的污斑的方法
EP1192309A2 (de) * 1999-06-11 2002-04-03 Ciba SC Holding AG Verwendung von uv-absorbern zum unterdrücken der fluoreszenz von optisch aufgehellten textilfasermaterialien
US6723846B1 (en) * 1999-09-10 2004-04-20 Ciba Specialty Chemicals Corporation Triazinylaminostilbene derivative as fluorescent whitening agents
CN1230511C (zh) * 2000-06-19 2005-12-07 西巴特殊化学品控股有限公司 荧光增白剂颜料组合物
BR0206398A (pt) * 2001-01-12 2004-02-10 Ciba Sc Holding Ag Processo para a preparação de compostos do ácido triazinilaminoestilbeno-dissulfÈnico
GB0125177D0 (en) * 2001-10-19 2001-12-12 Clariant Int Ltd Improvements in or relating to organic compounds
AU2003238207A1 (en) * 2002-06-11 2003-12-22 Ciba Specialty Chemicals Holding Inc. Whitening pigments
US7270771B2 (en) * 2002-07-05 2007-09-18 Ciba Specialty Chemicals Corporation Triazinylaminostilbene disulphonic acid mixtures
BRPI0715395A2 (pt) * 2003-08-08 2013-06-25 Clariant Finance Bvi Ltd soluÇÕes aquosas de alvejantes àpticos
FI122297B (fi) * 2003-10-27 2011-11-15 M Real Oyj Kartonki ja menetelmä sen valmistamiseksi
EP1571149A1 (de) * 2004-03-05 2005-09-07 Clariant International Ltd. Aufhellerlösungen
EP1612209A1 (de) 2004-06-28 2006-01-04 Clariant International Ltd. Verbesserungen betreffend optische Aufheller
DE102004038578A1 (de) * 2004-08-06 2006-03-16 Lanxess Deutschland Gmbh Alkanolammoniumhaltige Triazinylflavonataufheller
US20080142179A1 (en) * 2004-12-09 2008-06-19 John Martin Farrar Aqueous Dispersions of Optical Brighteners
EP1712677A1 (de) * 2005-04-08 2006-10-18 Clariant International Ltd. Wässerige Lösungen von optischen Aufhellern
KR100735711B1 (ko) 2006-01-09 2007-07-06 삼원산업주식회사 형광 증백제 및 이의 합성방법
SE530020C2 (sv) * 2006-06-15 2008-02-12 Holmen Ab Förfarande för stabilisering av vitheten hos i ytbehandlingslim/smet för papper ingående fluroescerande vitmedel (FWA) och hos av detta/dessa formade ytbehandlingsskikt
EP1881108A1 (de) * 2006-07-18 2008-01-23 CIBA SPECIALTY CHEMICALS HOLDING INC. Patent Departement Fluoreszierende Aufhellerzusammensetzung
US7445567B2 (en) * 2006-12-13 2008-11-04 Bridgestone Sports Co., Ltd. Multi-piece solid golf ball
KR101631871B1 (ko) * 2008-03-26 2016-06-20 아르크로마 아이피 게엠베하 개선된 형광 증백 조성물
AU2014259497B2 (en) * 2008-03-26 2016-05-12 Archroma Ip Gmbh Improved optical brightening compositions
ATE494423T1 (de) 2008-06-11 2011-01-15 Kemira Germany Gmbh Zusammensetzung und verfahren zur papierbleichung
CN102245719B (zh) * 2008-12-08 2014-01-29 惠普开发有限公司 用于喷墨介质的表面涂料组合物
PL2302132T3 (pl) * 2009-09-17 2013-01-31 Blankophor Gmbh & Co Kg Fluorescencyjne środki wybielające typu związków disulfonylowych
WO2011146604A2 (en) 2010-05-18 2011-11-24 Milliken & Company Optical brighteners and compositions comprising the same
PT2431519E (pt) * 2010-09-17 2013-10-28 Blankophor Gmbh & Co Kg Composições de agente de branqueamento fluorescente
EP2518058B1 (de) * 2011-04-27 2014-10-29 Clariant International Ltd. Neuartige Bis(triazinylamino)stilben-Derivate
CN102311657B (zh) * 2011-06-25 2013-12-11 山东大学 具有杀菌作用的低水溶性荧光增白剂及其合成方法与用途
CN102898855B (zh) * 2012-09-29 2013-12-11 山东大学 具有氨基酸结构的十六或十八烷基二甲基叔胺季铵盐高性能荧光增白剂的合成及应用
ES2566109T3 (es) * 2013-03-21 2016-04-11 Archroma Ip Gmbh Agentes abrillantadores ópticos para impresión por chorro de tinta de alta calidad
FR3013591B1 (fr) * 2013-11-28 2019-06-14 L'oreal Procede cosmetique d'eclaircissement de la peau avec un azurant optique anionique
US9487503B2 (en) * 2014-04-17 2016-11-08 3V Sigma S.P.A. Stilbene optical brighteners
JP6587690B2 (ja) 2015-08-31 2019-10-09 株式会社島精機製作所 加工繊維の製造方法及び当該加工繊維、動物繊維の損傷抑制方法、並びに動物繊維の加工方法
CN105482488A (zh) * 2015-11-25 2016-04-13 山西青山化工有限公司 一种液体荧光增白剂及其制备方法
WO2017128201A1 (zh) * 2016-01-28 2017-08-03 德丰铭国际股份有限公司 荧光增白剂组合物
JP6776364B2 (ja) * 2016-03-22 2020-10-28 オーボ アカデミー ユニヴァーシティー 蛍光増白剤としての多糖誘導体
CN106632116B (zh) * 2016-12-20 2019-08-13 贺州学院 一种水溶性重质碳酸钙粉体荧光增白剂及其制备方法和应用
CN107311952A (zh) * 2017-07-06 2017-11-03 广西碳酸钙产业化工程院有限公司 一种碳酸钙粉体增白剂和表面活性剂的制备方法及其应用
EP3710632B1 (de) * 2017-12-22 2021-12-01 Archroma IP GmbH Aufheller zum aufhellern von papier
WO2021061713A1 (en) * 2019-09-27 2021-04-01 B&B Blending, Llc Use of a fluorescent optical brightener or phosphorescent indicator within ceramic coatings for visual detection and identification
CN110922531B (zh) * 2019-12-06 2022-06-24 陕西科技大学 一种淀粉接枝荧光共聚乳液及其制备方法与应用

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD20974A (de) *
DE20794C (de) L. RÖ.SSLER in Altenmarkt a. Alz, Ober-Bayern Malzschälmaschine
DE20974C (de) * H. REUSCH, Ober-Bergrath a. D. in Dillingen a. Saar Verfahren zur Plattirung von Eisen und Stahl
DE1011889B (de) * 1956-06-14 1957-07-11 Cassella Farbwerke Mainkur Ag Verfahren zur Herstellung von optischen Bleichmitteln
GB1008457A (en) 1963-04-12 1965-10-27 Gen Aniline & Film Corp Improvements in or relating to stilbene-cyanuric compounds
GB1021527A (en) 1963-04-12 1966-03-02 Gen Aniline & Film Corp Improvements in or relating to stilbene-cyanuric compounds
DE1469218B1 (de) * 1964-06-30 1971-09-08 Hoechst Ag 4,4'-Bis-triazinylamino-stilbenverbindungen und ihre Verwendung als reaktive optischeAufhellungsmittel
NL6714386A (de) * 1967-10-23 1969-04-25
GB1238833A (de) 1968-01-18 1971-07-14
DE2700293A1 (de) 1977-01-05 1978-07-06 Bayer Ag Farbstofflaser
JPS62106965A (ja) * 1985-11-05 1987-05-18 Shin Nisso Kako Co Ltd 螢光増白剤
JPS63282382A (ja) * 1987-05-14 1988-11-18 日本化薬株式会社 染色法
GB9412590D0 (en) * 1994-06-23 1994-08-10 Sandoz Ltd Organic compounds
GB9503474D0 (en) * 1995-02-22 1995-04-12 Ciba Geigy Ag Compounds and their use
GB2313850A (en) 1996-06-04 1997-12-10 Ciba Geigy Ag Triazine based UVA compounds as quenchers in paper making processes
GB9611614D0 (en) * 1996-06-04 1996-08-07 Ciba Geigy Ag Process for inhibiting the effect of flourescent whitening agents

Also Published As

Publication number Publication date
KR20010005671A (ko) 2001-01-15
ATE273290T1 (de) 2004-08-15
KR100519872B1 (ko) 2005-10-11
CA2284723A1 (en) 1998-10-01
US20010014989A1 (en) 2001-08-23
US20020017001A1 (en) 2002-02-14
DE69825574T2 (de) 2005-08-04
NO994662L (no) 1999-11-15
EP0971905A1 (de) 2000-01-19
JP2001518919A (ja) 2001-10-16
BR9808058A (pt) 2000-03-08
CN1251581A (zh) 2000-04-26
ES2226117T3 (es) 2005-03-16
US6464735B2 (en) 2002-10-15
DE69816135T2 (de) 2004-04-22
ID22819A (id) 1999-12-09
NO994662D0 (no) 1999-09-24
EP1123929A1 (de) 2001-08-16
NO314083B1 (no) 2003-01-27
WO1998042685A1 (en) 1998-10-01
RU2198168C2 (ru) 2003-02-10
BR9808058B1 (pt) 2008-11-18
EP1123929B1 (de) 2003-07-02
EP0971905B1 (de) 2004-08-11
AU6831498A (en) 1998-10-20
US6458169B2 (en) 2002-10-01
CN1168723C (zh) 2004-09-29
US6210449B1 (en) 2001-04-03
DE69825574D1 (de) 2004-09-16
DE69816135D1 (de) 2003-08-07

Similar Documents

Publication Publication Date Title
ATE244227T1 (de) 4,4'-diaminostilben-2,2'-disulfonsäurederivate
YU57603A (sh) Inhibitori fosfodiesteraze 4
GB9308957D0 (en) Novel produgs
NL300283I1 (nl) Alfa- en bèta-aminozuur-hydroxyethylamino-sulfonamiden die toepasbaar zijn als retrovirale-prothease-remmers.
PT715628E (pt) Compostos de azaindolilideno substituidos e o seu processo de preparacao
EP0787726A4 (de)
BR9909844A (pt) Processo para sintetizar um composto, e, composto.
AR017236A1 (es) Compuestos biciclo [2.2.1] heptanos, composiciones farmaceuticas, procedimientos para tratar
BR9810657A (pt) "processo de preparação de um per-hidroisoindol substituìdo"
NZ314985A (en) 4,4'-bis-[4-(phenylamino)-triazinylamino]-stilbene-2,5'-sulphonic acid derivatives and their use as ultraviolet absorbing agents and fluorescent whitening agents
DE69901627D1 (de) Verfahren zur Herstellug von 3-Amino-pyrrolidinderivaten
BR9603452A (pt) Composições de pigmentos
ATE212036T1 (de) Lactol-derivate, als cathepsin l inhibitoren
ZA962981B (en) Nitric esters from derivatives of 2-(2,6-dihalophenylamino) phenylacetoxyacetic acid and their preparation process
TW264479B (de)
ES2164665T3 (es) Inhibidores de proteasas retrovirales.
EP0911336A4 (de)
TW200516174A (en) Rust preventive for magnesium and/or magnesium alloy
ES2067388A1 (es) Procedimiento para la produccion de derivados de piroglutamato de configuracion 2,4-cis
ES8300749A1 (es) Un procedimiento para la preparacion de piracin-carboxamidas

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties