NL7501862A - Nieuwe 2-carboxy-4-oxo-4h,6h-(2)-benzopyrano- -(3,4-f)-(1)-benzopyranen alsmede esters en zouten daarvan en werkwijze voor de bereiding daarvan. - Google Patents

Nieuwe 2-carboxy-4-oxo-4h,6h-(2)-benzopyrano- -(3,4-f)-(1)-benzopyranen alsmede esters en zouten daarvan en werkwijze voor de bereiding daarvan.

Info

Publication number
NL7501862A
NL7501862A NL7501862A NL7501862A NL7501862A NL 7501862 A NL7501862 A NL 7501862A NL 7501862 A NL7501862 A NL 7501862A NL 7501862 A NL7501862 A NL 7501862A NL 7501862 A NL7501862 A NL 7501862A
Authority
NL
Netherlands
Prior art keywords
benzopyranes
benzopyrano
oxo
carboxy
esters
Prior art date
Application number
NL7501862A
Other languages
English (en)
Dutch (nl)
Original Assignee
Boehringer Sohn Ingelheim
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 Boehringer Sohn Ingelheim filed Critical Boehringer Sohn Ingelheim
Publication of NL7501862A publication Critical patent/NL7501862A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/78—Ring systems having three or more relevant rings
    • C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
NL7501862A 1974-02-18 1975-02-17 Nieuwe 2-carboxy-4-oxo-4h,6h-(2)-benzopyrano- -(3,4-f)-(1)-benzopyranen alsmede esters en zouten daarvan en werkwijze voor de bereiding daarvan. NL7501862A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407631 DE2407631A1 (de) 1974-02-18 1974-02-18 Neue 2-carboxy-4-oxo-4h,6h- eckige klammer auf 2 eckige klammer zu -benzopyranoeckige klammer auf 3,4-f eckige klammer zu eckige klammer auf 1 eckige klammer zu -benzopyrane sowie ihre ester und salze und verfahren zu ihrer herstellung

Publications (1)

Publication Number Publication Date
NL7501862A true NL7501862A (nl) 1975-08-20

Family

ID=5907686

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7501862A NL7501862A (nl) 1974-02-18 1975-02-17 Nieuwe 2-carboxy-4-oxo-4h,6h-(2)-benzopyrano- -(3,4-f)-(1)-benzopyranen alsmede esters en zouten daarvan en werkwijze voor de bereiding daarvan.

Country Status (9)

Country Link
US (1) US3987186A (de)
JP (1) JPS50116500A (de)
AT (1) AT339298B (de)
BE (1) BE825642A (de)
DE (1) DE2407631A1 (de)
ES (2) ES434463A1 (de)
FR (1) FR2261006B1 (de)
GB (1) GB1492865A (de)
NL (1) NL7501862A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057553A (en) * 1976-08-26 1977-11-08 Hoffmann-La Roche Inc. Certain pyrano-furo-azuleno-pyridines
GB9411632D0 (en) * 1994-06-10 1994-08-03 Smithkline Beecham Plc Novel treatment
AU2003268752A1 (en) * 2002-10-30 2004-05-25 Sumitomo Chemical Company, Limited High-molecular compounds and polymerer light emitting devices made by using the same
CN120693339A (zh) 2022-10-25 2025-09-23 Artus治疗股份有限公司 用于增强上皮和/或内皮屏障功能的治疗剂

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902925A (en) * 1973-10-30 1975-09-02 Gen Electric Deep diode device and method

Also Published As

Publication number Publication date
FR2261006B1 (de) 1978-06-30
ATA43975A (de) 1977-02-15
ES434463A1 (es) 1977-03-16
BE825642A (fr) 1975-08-18
AT339298B (de) 1977-10-10
GB1492865A (en) 1977-11-23
DE2407631A1 (de) 1975-08-28
ES437183A1 (es) 1977-01-16
JPS50116500A (de) 1975-09-11
FR2261006A1 (de) 1975-09-12
US3987186A (en) 1976-10-19

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