GB1433637A - Thiacoumarin derivatives - Google Patents

Thiacoumarin derivatives

Info

Publication number
GB1433637A
GB1433637A GB2791473A GB2791473A GB1433637A GB 1433637 A GB1433637 A GB 1433637A GB 2791473 A GB2791473 A GB 2791473A GB 2791473 A GB2791473 A GB 2791473A GB 1433637 A GB1433637 A GB 1433637A
Authority
GB
United Kingdom
Prior art keywords
group
nitro
june
hydroxy
formula
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
Application number
GB2791473A
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 Beecham Group PLC filed Critical Beecham Group PLC
Priority to GB2791473A priority Critical patent/GB1433637A/en
Priority to JP6700574A priority patent/JPS5093974A/ja
Publication of GB1433637A publication Critical patent/GB1433637A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D335/00—Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom
    • C07D335/04—Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D335/06—Benzothiopyrans; Hydrogenated benzothiopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

1433637 4-Hydroxy-2-nitro-1 -thiacoumarins BEECHAM GROUP Ltd 3 June 1974 [12 June 1973] 27914/73 Heading C2C [Also in Division A5] Novel coumarins of Formula I wherein R 1 , R 2 , R 3 and R 4 each represent hydrogen or a C 1 to C 6 alkyl group, or a C 1 to C 6 alkoxy group, phenoxy, benzyloxy, benzyl, pyridyl, hydroxy, nitro, amino, acetamido, or a halogen atom or any adjacent two of the groups R 1 , R 2 , R 3 and R 4 when taken together represent a tetramethylene or butadienylene group are prepared by nitration of a compound of Formula II
GB2791473A 1973-06-12 1973-06-12 Thiacoumarin derivatives Expired GB1433637A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2791473A GB1433637A (en) 1973-06-12 1973-06-12 Thiacoumarin derivatives
JP6700574A JPS5093974A (en) 1973-06-12 1974-06-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2791473A GB1433637A (en) 1973-06-12 1973-06-12 Thiacoumarin derivatives

Publications (1)

Publication Number Publication Date
GB1433637A true GB1433637A (en) 1976-04-28

Family

ID=10267338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2791473A Expired GB1433637A (en) 1973-06-12 1973-06-12 Thiacoumarin derivatives

Country Status (2)

Country Link
JP (1) JPS5093974A (en)
GB (1) GB1433637A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005141A1 (en) * 1978-02-16 1979-11-14 Ciba-Geigy Ag Benzothiopyran derivatives, their preparation and pharmaceutical compositions containing them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005141A1 (en) * 1978-02-16 1979-11-14 Ciba-Geigy Ag Benzothiopyran derivatives, their preparation and pharmaceutical compositions containing them

Also Published As

Publication number Publication date
JPS5093974A (en) 1975-07-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee