GB1305007A - - Google Patents

Info

Publication number
GB1305007A
GB1305007A GB2079771A GB2079771A GB1305007A GB 1305007 A GB1305007 A GB 1305007A GB 2079771 A GB2079771 A GB 2079771A GB 2079771 A GB2079771 A GB 2079771A GB 1305007 A GB1305007 A GB 1305007A
Authority
GB
United Kingdom
Prior art keywords
pyrazine
acetamidobenzenesulphonamido
aminobenzenesulphonamido
sulpha
dichloropyrazine
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
GB2079771A
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 filed Critical
Publication of GB1305007A publication Critical patent/GB1305007A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D241/00Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/10Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D241/14Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three 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, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D241/20Nitrogen atoms
    • C07D241/22Benzenesulfonamido pyrazines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1305007 Sulpha - pyrazines CHINOIN GYOGYSZER - ES. VEGYESZETI TERMEKEK GYARA RT 19 April 1971 [30 Jan 1970] 20797/71 Heading C2C The invention comprises a process for making therapeutic 2 - (p-aminobenzenesulphonamido ) - 3-methoxy-pyrazine and salts thereof by reacting novel 2-(p-acetamidobenzenesulphonamido)-3- chloro-pyrazine (made by interacting 2,3-dichloropyrazine and p-acetamido-benzene-sulphonamide) with methanol containing an alkali metal hydroxide and if desired acidifying to produce the free compound.
GB2079771A 1970-01-30 1971-04-19 Expired GB1305007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBO001216 1970-01-30

Publications (1)

Publication Number Publication Date
GB1305007A true GB1305007A (en) 1973-01-31

Family

ID=10993692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2079771A Expired GB1305007A (en) 1970-01-30 1971-04-19

Country Status (5)

Country Link
AT (1) AT302312B (en)
CH (1) CH548402A (en)
ES (1) ES387761A1 (en)
GB (1) GB1305007A (en)
SE (1) SE381465B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7967132A0 (en) * 1979-01-22 1979-01-22 Marxer Spa PROCEDURE FOR THE SYNTHESIS OF 2BENZENESULFONAMIDO 3METHOXYPYRAZINE

Also Published As

Publication number Publication date
CH548402A (en) 1974-04-30
SE381465B (en) 1975-12-08
AT302312B (en) 1972-10-10
ES387761A1 (en) 1973-05-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PCNP Patent ceased through non-payment of renewal fee