IL31787A - 2-r5-4h-pyrazino(2,3-d)(1,3)-oxazin-4-one 8-oxides and processes for their preparation - Google Patents

2-r5-4h-pyrazino(2,3-d)(1,3)-oxazin-4-one 8-oxides and processes for their preparation

Info

Publication number
IL31787A
IL31787A IL3178765A IL3178765A IL31787A IL 31787 A IL31787 A IL 31787A IL 3178765 A IL3178765 A IL 3178765A IL 3178765 A IL3178765 A IL 3178765A IL 31787 A IL31787 A IL 31787A
Authority
IL
Israel
Prior art keywords
pyrazino
oxazin
oxides
processes
preparation
Prior art date
Application number
IL3178765A
Other languages
English (en)
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 US395046A external-priority patent/US3249610A/en
Priority claimed from US426203A external-priority patent/US3327287A/en
Application filed by Merck & Co Inc filed Critical Merck & Co Inc
Publication of IL31787A publication Critical patent/IL31787A/xx

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IL3178765A 1964-09-08 1965-08-06 2-r5-4h-pyrazino(2,3-d)(1,3)-oxazin-4-one 8-oxides and processes for their preparation IL31787A (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
IL31787A true IL31787A (en) 1969-07-30

Family

ID=27503371

Family Applications (3)

Application Number Title Priority Date Filing Date
IL3178765A IL31787A (en) 1964-09-08 1965-08-06 2-r5-4h-pyrazino(2,3-d)(1,3)-oxazin-4-one 8-oxides and processes for their preparation
IL2409865A IL24098A (en) 1964-09-08 1965-08-06 Process for preparing 5-chloro-3-aminopyrazinoates
IL2409765A IL24097A (en) 1964-09-08 1965-08-06 The N-oxide-3-amino-pyrazinoic acid compounds and their esters, amides and hydrazides, and processes for their production

Family Applications After (2)

Application Number Title Priority Date Filing Date
IL2409865A IL24098A (en) 1964-09-08 1965-08-06 Process for preparing 5-chloro-3-aminopyrazinoates
IL2409765A IL24097A (en) 1964-09-08 1965-08-06 The N-oxide-3-amino-pyrazinoic acid compounds and their esters, amides and hydrazides, and processes for their production

Country Status (8)

Country Link
BE (2) BE668496A (de)
BR (3) BR6572741D0 (de)
CH (3) CH466293A (de)
DE (3) DE1595953A1 (de)
GB (5) GB1112721A (de)
IL (3) IL31787A (de)
NL (3) NL6511643A (de)
SE (1) SE329629B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113200985B (zh) * 2021-05-18 2022-09-09 南开大学 一种蝶啶酮类化合物及其制备方法和应用
CN117946013A (zh) * 2024-01-25 2024-04-30 白银康寓信生物科技有限公司 一锅法合成5,6-二卤代-3-氨基吡嗪-2-甲酸甲酯的方法

Also Published As

Publication number Publication date
BR6572769D0 (pt) 1973-12-26
CH467271A (de) 1969-01-15
GB1115406A (en) 1968-05-29
DE1595952A1 (de) 1970-05-14
DE1620020A1 (de) 1970-02-12
NL6511644A (de) 1966-03-09
GB1112721A (en) 1968-05-08
IL24098A (en) 1969-03-27
BE668496A (de) 1966-02-21
GB1112722A (en) 1968-05-08
BR6681060D0 (pt) 1973-12-26
IL24097A (en) 1969-11-12
SE329629B (de) 1970-10-19
BE668495A (de) 1966-02-21
NL6511643A (de) 1966-03-09
BR6572741D0 (pt) 1973-08-07
NL6609629A (de) 1967-01-09
GB1112724A (en) 1968-05-08
DE1595953A1 (de) 1970-07-09
GB1112723A (en) 1968-05-08
CH475262A (de) 1969-07-15
CH466293A (de) 1968-12-15

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