GB1112723A - Pyrazino[2,3-d][1,3]oxazin-4-one 8-oxides - Google Patents

Pyrazino[2,3-d][1,3]oxazin-4-one 8-oxides

Info

Publication number
GB1112723A
GB1112723A GB3179365D GB3179365D GB1112723A GB 1112723 A GB1112723 A GB 1112723A GB 3179365 D GB3179365 D GB 3179365D GB 3179365 D GB3179365 D GB 3179365D GB 1112723 A GB1112723 A GB 1112723A
Authority
GB
United Kingdom
Prior art keywords
alkyl
phenyl
hydrogen
pyrazino
alkylsulphonyl
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
GB3179365D
Inventor
Edward Jethro Cragoe
James Holden Jones
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.)
Merck and Co Inc
Original Assignee
Merck and 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 US395046A external-priority patent/US3249610A/en
Priority claimed from US426203A external-priority patent/US3327287A/en
Application filed by Merck and Co Inc filed Critical Merck and Co Inc
Publication of GB1112723A publication Critical patent/GB1112723A/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
    • C07D241/24Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D241/26Carbon 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D475/00Heterocyclic compounds containing pteridine ring systems
    • C07D475/02Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D475/00Heterocyclic compounds containing pteridine ring systems
    • C07D475/02Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • C07D475/04Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1,112,723. Pyrazino-oxazines. MERCK & CO. Inc. 7 Sept., 1965 [8 July, 1965], No. 31793/67. Divided out of 1,112,721. Heading C2C. Novel compounds of the formula in which R<SP>5</SP> is a hydrogen atom or a C 1-5 alkyl or phenyl-substituted C 1-5 alkyl radical and X is a hydrogen, chlorine or bromine atom or a trifluoromethyl, C 1-5 alkyl, C 3-6 cycloalkyl, mononuclear aryl, C 1-5 alkoxy, C 1-5 alkylthio, phenyl-Bubstituted C 1-5 alkylthio, C 1-5 alkylsulphonyl, phenyl-substituted C 1-5 alkylsulphonyl or di-(C 1-5 alkyl) amino group, are prepared by heating a 3-amino-6-X-pyrazinoic acid 4-oxide with an organic acid anhydride of formula (R<SP>5</SP>CO) 2 O or, when R<SP>5</SP> is to be hydrogen, with a mixture of formic acid and acetic anhydride.
GB3179365D 1964-09-08 1965-09-07 Pyrazino[2,3-d][1,3]oxazin-4-one 8-oxides Expired GB1112723A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US395046A US3249610A (en) 1964-09-08 1964-09-08 Synthesis of 3-amino, 5-chloro, 6-substituted-pyrazinoates
US426203A US3327287A (en) 1965-01-18 1965-01-18 Apparatus for converting lineal seismogram sections into an areally presented seismogram
US47035065A 1965-07-08 1965-07-08
US47056365A 1965-07-08 1965-07-08

Publications (1)

Publication Number Publication Date
GB1112723A true GB1112723A (en) 1968-05-08

Family

ID=27503371

Family Applications (5)

Application Number Title Priority Date Filing Date
GB3179365D Expired GB1112723A (en) 1964-09-08 1965-09-07 Pyrazino[2,3-d][1,3]oxazin-4-one 8-oxides
GB3816765A Expired GB1112722A (en) 1964-09-08 1965-09-07 Alkyl aminochloropyrazinoates
GB3816665A Expired GB1112721A (en) 1964-09-08 1965-09-07 3-aminopyrazinoic acid n-oxide compounds and their derivatives
GB3179467A Expired GB1112724A (en) 1964-09-08 1965-09-07 Pteridine n-oxides
GB2907666A Expired GB1115406A (en) 1964-09-08 1966-06-29 3(aminopyrazinoyl)guanidine 4-oxide derivatives and their preparation and use

Family Applications After (4)

Application Number Title Priority Date Filing Date
GB3816765A Expired GB1112722A (en) 1964-09-08 1965-09-07 Alkyl aminochloropyrazinoates
GB3816665A Expired GB1112721A (en) 1964-09-08 1965-09-07 3-aminopyrazinoic acid n-oxide compounds and their derivatives
GB3179467A Expired GB1112724A (en) 1964-09-08 1965-09-07 Pteridine n-oxides
GB2907666A Expired GB1115406A (en) 1964-09-08 1966-06-29 3(aminopyrazinoyl)guanidine 4-oxide derivatives and their preparation and use

Country Status (8)

Country Link
BE (2) BE668496A (en)
BR (3) BR6572769D0 (en)
CH (3) CH466293A (en)
DE (3) DE1595952A1 (en)
GB (5) GB1112723A (en)
IL (3) IL24098A (en)
NL (3) NL6511644A (en)
SE (1) SE329629B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113200985B (en) * 2021-05-18 2022-09-09 南开大学 Pteridinone compound and preparation method and application thereof
CN117946013B (en) * 2024-01-25 2024-07-02 白银康寓信生物科技有限公司 Method for synthesizing 5, 6-dihalogen-3-aminopyrazine-2-methyl formate by one-pot method

Also Published As

Publication number Publication date
GB1112722A (en) 1968-05-08
BE668495A (en) 1966-02-21
GB1115406A (en) 1968-05-29
BR6572769D0 (en) 1973-12-26
BE668496A (en) 1966-02-21
BR6572741D0 (en) 1973-08-07
DE1595953A1 (en) 1970-07-09
BR6681060D0 (en) 1973-12-26
IL24097A (en) 1969-11-12
CH475262A (en) 1969-07-15
CH466293A (en) 1968-12-15
NL6511643A (en) 1966-03-09
SE329629B (en) 1970-10-19
NL6511644A (en) 1966-03-09
GB1112724A (en) 1968-05-08
DE1595952A1 (en) 1970-05-14
IL24098A (en) 1969-03-27
NL6609629A (en) 1967-01-09
DE1620020A1 (en) 1970-02-12
CH467271A (en) 1969-01-15
IL31787A (en) 1969-07-30
GB1112721A (en) 1968-05-08

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