FR2244521B1 - - Google Patents

Info

Publication number
FR2244521B1
FR2244521B1 FR7432267A FR7432267A FR2244521B1 FR 2244521 B1 FR2244521 B1 FR 2244521B1 FR 7432267 A FR7432267 A FR 7432267A FR 7432267 A FR7432267 A FR 7432267A FR 2244521 B1 FR2244521 B1 FR 2244521B1
Authority
FR
France
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
FR7432267A
Other versions
FR2244521A1 (fr
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.)
Pfizer Italia SRL
Original Assignee
Farmaceutici Italia SpA
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 Farmaceutici Italia SpA filed Critical Farmaceutici Italia SpA
Publication of FR2244521A1 publication Critical patent/FR2244521A1/fr
Application granted granted Critical
Publication of FR2244521B1 publication Critical patent/FR2244521B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
    • C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyridine Compounds (AREA)
FR7432267A 1973-09-26 1974-09-25 Expired FR2244521B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2940673 1973-09-26

Publications (2)

Publication Number Publication Date
FR2244521A1 FR2244521A1 (fr) 1975-04-18
FR2244521B1 true FR2244521B1 (fr) 1978-07-28

Family

ID=11226917

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432267A Expired FR2244521B1 (fr) 1973-09-26 1974-09-25

Country Status (5)

Country Link
US (1) US3975389A (fr)
JP (1) JPS5059389A (fr)
DE (1) DE2445399A1 (fr)
FR (1) FR2244521B1 (fr)
GB (1) GB1428868A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113880A1 (de) * 1981-04-07 1982-10-21 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von coffein

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879271A (en) * 1953-07-23 1959-03-24 Knoll Ag Basic derivatives of mono- and dimethyl xanthines, and a process of making same

Also Published As

Publication number Publication date
FR2244521A1 (fr) 1975-04-18
GB1428868A (en) 1976-03-17
DE2445399A1 (de) 1975-03-27
JPS5059389A (fr) 1975-05-22
US3975389A (en) 1976-08-17

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Legal Events

Date Code Title Description
ST Notification of lapse