WO1990013611A3 - Composes optiquement actifs et phase a cristaux liquides - Google Patents

Composes optiquement actifs et phase a cristaux liquides Download PDF

Info

Publication number
WO1990013611A3
WO1990013611A3 PCT/EP1990/000679 EP9000679W WO9013611A3 WO 1990013611 A3 WO1990013611 A3 WO 1990013611A3 EP 9000679 W EP9000679 W EP 9000679W WO 9013611 A3 WO9013611 A3 WO 9013611A3
Authority
WO
WIPO (PCT)
Prior art keywords
residue
diyl
liquid crystal
optically active
active compounds
Prior art date
Application number
PCT/EP1990/000679
Other languages
German (de)
English (en)
Other versions
WO1990013611A2 (fr
Inventor
Andreas Waechtler
Thomas Geelhaar
Reinhard Hittich
Ekkehard Bartmann
Joachim Krause
Eike Poetsch
Original Assignee
Merck Patent Gmbh
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 DE3915698A external-priority patent/DE3915698A1/de
Priority claimed from DE3920571A external-priority patent/DE3920571A1/de
Priority claimed from DE3922416A external-priority patent/DE3922416A1/de
Priority claimed from DE3922308A external-priority patent/DE3922308A1/de
Priority claimed from DE3922307A external-priority patent/DE3922307A1/de
Priority claimed from DE3923324A external-priority patent/DE3923324A1/de
Application filed by Merck Patent Gmbh filed Critical Merck Patent Gmbh
Priority to EP90915943A priority Critical patent/EP0428720B1/fr
Priority to DE59008760T priority patent/DE59008760D1/de
Publication of WO1990013611A2 publication Critical patent/WO1990013611A2/fr
Publication of WO1990013611A3 publication Critical patent/WO1990013611A3/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/30Oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/45Carboxylic acid nitriles having cyano groups bound to carbon atoms of rings other than six-membered aromatic rings
    • C07C255/46Carboxylic acid nitriles having cyano groups bound to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of non-condensed rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00Ethers; Compounds having groups, groups or groups
    • C07C43/02Ethers
    • C07C43/20Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
    • C07C43/225Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing halogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/44Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom
    • C07D213/46Oxygen atoms
    • C07D213/50Ketonic radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/26Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32One oxygen, sulfur or nitrogen atom
    • C07D239/34One oxygen atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D285/00Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01Five-membered rings
    • C07D285/02Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/121,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/34Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • C09K19/3444Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing one nitrogen atom, e.g. pyridine
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/34Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • C09K19/345Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
    • C09K19/3458Uncondensed pyrimidines
    • C09K19/3463Pyrimidine with a carbon chain containing at least one asymmetric carbon atom, i.e. optically active pyrimidines
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/34Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3491Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/34Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3491Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
    • C09K19/3497Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom the heterocyclic ring containing sulfur and nitrogen atoms
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/52Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58Dopants or charge transfer agents
    • C09K19/586Optically active dopants; chiral dopants
    • C09K19/588Heterocyclic compounds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated

Abstract

Composés optiquement actifs correspondant à la formule (I), où R représente un résidu alkyle ou alcényle, non substitué, ou monosubstitué par -CN, ou monosubstitué ou polysubstitué par fluor ou chlore, avec jusqu'à 15 atomes de C, un groupe CH2 pouvant également être substitué par -O-, -CO-, -O-CO-, -CO-O- ou -O-CO-O- danbs ces résidus; A1 et A2 représentent, indépendamment l'un de l'autre, les résidus suivants, non substitués ou substitués avec un ou deux atomes de fluor: 1,4-phénylène, pyridine-2,5-diyle, pyrimidine-2,5-dyile, pyrazine-2,5-diyle, pyridazine-3,6-diyle, 1,3,4-thiadiazol-2,5-diyle, 1,2,4-thiadiazol-3,5-diyle, trans-1,4-cyclohexylène, où l'un des groupes CH¿2? ou deux groupes CH2 non adjacents peuvent être remplacés par -O- et/ou -S-, et/ou un groupe CH; Z?1, Z2 et Z3¿ représentent, indépendamment les uns des autres, -CO-O-, -OCO-, -CH¿2?O-, -OCH2-, -CH2CH2-, -CH=CH-, -C=C- ou une liaison simple; Q?1¿ représente -CH¿2?CH2-, -CH2CH2CH2-, -OCH2-, -CH2OCH2-, -OCH2CH2-, -O-CO-, -CO-OCH2-; Q?2¿ représente -O-, -O-CO-, -(CH¿2?)3-O- ou une liaison simple; m est 1, 2 ou 3; n est 0 ou 1; et o est compris entre 1 et 9. L'invention porte également sur l'utilisation de ces composés en tant que constituants de phases à cristaux liquides.
PCT/EP1990/000679 1989-05-11 1990-05-10 Composes optiquement actifs et phase a cristaux liquides WO1990013611A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90915943A EP0428720B1 (fr) 1989-05-11 1990-05-10 Composes optiquement actifs et phase a cristaux liquides
DE59008760T DE59008760D1 (de) 1989-05-11 1990-05-10 Optisch aktive verbindungen und flüssigkristalline phase.

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
DEP3915378.9 1989-05-11
DE3915378 1989-05-11
DEP3915698.2 1989-05-13
DE3915698A DE3915698A1 (de) 1989-05-13 1989-05-13 Optisch aktive verbindungen und fluessigkristalline phase
DEP3920571.1 1989-06-23
DE3920571A DE3920571A1 (de) 1989-06-23 1989-06-23 2.5-disubstituierter heterocyclus und fluessigkristalline phase
DE3922416A DE3922416A1 (de) 1989-07-07 1989-07-07 Chirale oder achirale ringverbindungen
DEP3922308.6 1989-07-07
DEP3922307.8 1989-07-07
DE3922308A DE3922308A1 (de) 1989-07-07 1989-07-07 2,5-disubstituierte pyrimidine und fluessigkristalline phase
DE3922307A DE3922307A1 (de) 1989-07-07 1989-07-07 2,5-disubstituierter heterocyclus und fluessigkristalline phase
DEP3922416.3 1989-07-07
DE3923324A DE3923324A1 (de) 1989-05-11 1989-07-14 Chirale oder achirale ringverbindungen
DEP3923324.3 1989-07-14

Publications (2)

Publication Number Publication Date
WO1990013611A2 WO1990013611A2 (fr) 1990-11-15
WO1990013611A3 true WO1990013611A3 (fr) 1990-12-27

Family

ID=27561518

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000679 WO1990013611A2 (fr) 1989-05-11 1990-05-10 Composes optiquement actifs et phase a cristaux liquides

Country Status (4)

Country Link
EP (1) EP0428720B1 (fr)
JP (1) JPH04500079A (fr)
DE (1) DE59008760D1 (fr)
WO (1) WO1990013611A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2901717B2 (ja) * 1990-07-31 1999-06-07 高砂香料工業株式会社 フッ素含有光学活性化合物及び該化合物を含有する液晶組成物
JP3095927B2 (ja) * 1993-02-10 2000-10-10 キヤノン株式会社 光学活性化合物、それを含有する液晶組成物、その使用方法、それを用いた液晶素子及び表示装置
GB9506309D0 (en) * 1995-03-28 1995-05-17 Secr Defence Pyrimidine compounds
US6121448A (en) * 1995-03-28 2000-09-19 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Pyrimidine compounds
GB2316077B (en) * 1995-03-28 1999-09-08 Secr Defence Pyrimidine Compounds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237007A2 (fr) * 1986-03-10 1987-09-16 Canon Kabushiki Kaisha Dérivé de fluoralcane et composition de crystal liquide
EP0278665A2 (fr) * 1987-02-02 1988-08-17 Chisso Corporation 2-Alkyléther substitué et composition liquide cristalline
EP0289270A1 (fr) * 1987-04-27 1988-11-02 Chisso Corporation Dérivés optiquement actifs de la biphénylyl-2 pyrimidine et compositions de cristaux liquides les contenant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629259B2 (ja) * 1987-03-31 1994-04-20 キヤノン株式会社 液晶性化合物およびそれを含む液晶組成物

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237007A2 (fr) * 1986-03-10 1987-09-16 Canon Kabushiki Kaisha Dérivé de fluoralcane et composition de crystal liquide
EP0278665A2 (fr) * 1987-02-02 1988-08-17 Chisso Corporation 2-Alkyléther substitué et composition liquide cristalline
EP0289270A1 (fr) * 1987-04-27 1988-11-02 Chisso Corporation Dérivés optiquement actifs de la biphénylyl-2 pyrimidine et compositions de cristaux liquides les contenant

Also Published As

Publication number Publication date
EP0428720A1 (fr) 1991-05-29
WO1990013611A2 (fr) 1990-11-15
DE59008760D1 (de) 1995-04-27
JPH04500079A (ja) 1992-01-09
EP0428720B1 (fr) 1995-03-22

Similar Documents

Publication Publication Date Title
AU3188889A (en) Derivatives of 2,3-difluorohydroquinone
EP0144013A3 (en) Thienothiophene derivatives
JP2001081466A5 (fr)
HK27194A (en) Trifluorobenzene derivatives and liquid crystal compositions containing the same
KR880700044A (ko) 스메틱 액정상
KR960701848A (ko) 액정 조성물에 사용되는 신규한 화합물(Novel compounds for use in liquidgorystal compositions)
ATE119871T1 (de) Fluorbenzolderivate und flüssigkristallines medium.
ATE60603T1 (de) Chirale aryl-2,3-epoxyalkyl-ether und deren entsprechende thioverbindungen und ihre verwendung als dotierstoff in fluessigkristallphasen.
DE69510267D1 (de) Flüssigkristallverbindung, Flüssigkristallzusammensetzung und Flüssigkristallanzeigeelement
KR900003180A (ko) 오가노실릴알킬 또는 오가노실릴알케닐 화합물, 이들의 제조방법 및 액정 혼합물의 용도
EP1081123A3 (fr) Derivé de 2,3-difluorophenyle à anisotropie diélectrique negative, composition liquide cristalline et dispositif d'affichage à cristaux liquides
KR940005587A (ko) 액정 혼합물에 사용하기 위한 6원 환 함유 메타 치환된 방향족 화합물
KR930010017A (ko) 액정 혼합물에서 사용하기 위한 화합물
DE59109263D1 (de) 2-Fluorpyridine, Verfahren zu ihrer Herstellung und ihre Verwendung in Flüssigkristallmischungen
KR880006345A (ko) 액정 혼합물
WO1990013611A3 (fr) Composes optiquement actifs et phase a cristaux liquides
KR940005573A (ko) 3-플루오로피리딘, 이의 제조방법 및 액정 혼합물에서의 이의 용도
ATE108445T1 (de) Heterocyclische derivate des 1,2-difluorbenzols.
EP0328330A3 (en) Ferroelectric liquid crystal composition
EP0284008A3 (en) Use of derivatives of 5-phenyl pyrimidine as components of smectic liquid-crystalline mixtures
EP0308794A3 (en) Liquid crystal phenyl pyrimidine ester of cyclohexane-carboxylic acid with a smectic phase, process for its preparation and its use in liquid crystal mixtures
KR900701722A (ko) 플루오르화된 비페닐디올 유도체
EP0345091A3 (fr) Compositions liquides cristallines ferro-électriques
KR920006479A (ko) 강유전성 액정 혼합물 성분으로서의 4- 플루오로피리미딘 유도체의 용도
EP0350937A3 (fr) Composition liquide cristalline ferro-électrique chirale smectique et dispositif l'utilisant

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1990915943

Country of ref document: EP

AK Designated states

Kind code of ref document: A3

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

WWP Wipo information: published in national office

Ref document number: 1990915943

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1990915943

Country of ref document: EP