CH481939A - Verfahren zur Herstellung von 4H-Pyrazino-(2,3-d)-(1,3)-oxazin-4-onen - Google Patents

Verfahren zur Herstellung von 4H-Pyrazino-(2,3-d)-(1,3)-oxazin-4-onen

Info

Publication number
CH481939A
CH481939A CH1111464A CH1111464A CH481939A CH 481939 A CH481939 A CH 481939A CH 1111464 A CH1111464 A CH 1111464A CH 1111464 A CH1111464 A CH 1111464A CH 481939 A CH481939 A CH 481939A
Authority
CH
Switzerland
Prior art keywords
pyrazino
oxazin
ones
preparation
Prior art date
Application number
CH1111464A
Other languages
English (en)
Inventor
Jethro Jr Cragoe Edward
Beeh Bicking John
Original Assignee
Merck & Co Inc
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 US313315A external-priority patent/US3313813A/en
Priority claimed from US356038A external-priority patent/US3290311A/en
Priority claimed from US356039A external-priority patent/US3316266A/en
Application filed by Merck & Co Inc filed Critical Merck & Co Inc
Publication of CH481939A publication Critical patent/CH481939A/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D475/00—Heterocyclic compounds containing pteridine ring systems
    • C07D475/02—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/10—Heterocyclic 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
    • C07D241/14—Heterocyclic 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
    • C07D241/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D241/26—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals with nitrogen atoms directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
CH1111464A 1962-10-30 1964-08-25 Verfahren zur Herstellung von 4H-Pyrazino-(2,3-d)-(1,3)-oxazin-4-onen CH481939A (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US23423062A 1962-10-30 1962-10-30
US313315A US3313813A (en) 1962-10-30 1963-10-07 (3-amino-5, 6-disubstituted-pyrazinoyl) guanidines
US35604264A 1964-03-31 1964-03-31
US356038A US3290311A (en) 1964-03-31 1964-03-31 Derivatives of 3, 5-diamino-6-chloropyrazinoic acid esters and a process for making them
US356039A US3316266A (en) 1964-03-31 1964-03-31 3-aminopyrazinoic acid derivatives and process for their preparation
US35725664A 1964-04-03 1964-04-03
US509217A US3410850A (en) 1962-10-30 1965-11-22 4h-pyrazino-[2, 3d][1, 3]oxazin-4-ones and their preparation

Publications (1)

Publication Number Publication Date
CH481939A true CH481939A (de) 1969-11-30

Family

ID=26999580

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1111464A CH481939A (de) 1962-10-30 1964-08-25 Verfahren zur Herstellung von 4H-Pyrazino-(2,3-d)-(1,3)-oxazin-4-onen
CH1635164A CH469721A (de) 1962-10-30 1964-12-18 Verfahren zur Herstellung von 3-Acrylamino-pyrazinamido-guanidinen

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1635164A CH469721A (de) 1962-10-30 1964-12-18 Verfahren zur Herstellung von 3-Acrylamino-pyrazinamido-guanidinen

Country Status (6)

Country Link
US (1) US3410850A (de)
BE (2) BE651729A (de)
CH (2) CH481939A (de)
DK (1) DK142199B (de)
FR (1) FR95657E (de)
NL (1) NL6409717A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549627A (en) * 1968-04-05 1970-12-22 American Home Prod 2,6-disubstituted-4h-pyrimido(5,4-d)(1,3)oxazin-4-0nes
US3549633A (en) * 1968-11-20 1970-12-22 Merck & Co Inc Process for preparation of 1-h-imidazo (4,5-b)pyrazin-2-ones
US4140776A (en) * 1977-09-16 1979-02-20 Merck & Co., Inc. N-pyrazinecarbonyl-N'-acylguanidines

Also Published As

Publication number Publication date
BE651730A (de) 1965-02-12
BE651729A (de) 1965-02-12
US3410850A (en) 1968-11-12
NL6409717A (de) 1965-10-04
CH469721A (de) 1969-03-15
FR95657E (fr) 1971-04-16
DK142199C (de) 1981-02-16
DK142199B (da) 1980-09-22

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Legal Events

Date Code Title Description
PL Patent ceased