GB841196A - Theophylline derivatives - Google Patents

Theophylline derivatives

Info

Publication number
GB841196A
GB841196A GB2213256A GB2213256A GB841196A GB 841196 A GB841196 A GB 841196A GB 2213256 A GB2213256 A GB 2213256A GB 2213256 A GB2213256 A GB 2213256A GB 841196 A GB841196 A GB 841196A
Authority
GB
United Kingdom
Prior art keywords
acid
choline
salt
theophyllyl
suspension
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
GB2213256A
Inventor
Haydn Geoffrey Dickenenson
William Kelly
William Handel Evans
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.)
Ward Blenkinsop and Co Ltd
Original Assignee
Ward Blenkinsop and Co Ltd
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 Ward Blenkinsop and Co Ltd filed Critical Ward Blenkinsop and Co Ltd
Priority to GB2213256A priority Critical patent/GB841196A/en
Publication of GB841196A publication Critical patent/GB841196A/en
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
    • C07D473/08—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 and 3, e.g. theophylline

Landscapes

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

Abstract

The invention comprises the choline salt of theophyllyl-(N)-acetic acid and the preparation thereof either by treating a solution or suspension of the acid with the choline salt of a weak acid e.g. choline carbonate, or by evaporating an aqueous solution containing the acid or a water-soluble salt thereof and the choline salt of a volatile acid e.g. choline chloride or bromide. Examples are given. Theophyllyl - (N) - acetic acid is prepared by heating a suspension of an alkali metal salt of theophylline in an aqueous solution of sodium or potassium monochloracetate containing sodium or potassium bicarbonate. Specification 8031/14 is referred to.
GB2213256A 1956-07-17 1956-07-17 Theophylline derivatives Expired GB841196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2213256A GB841196A (en) 1956-07-17 1956-07-17 Theophylline derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2213256A GB841196A (en) 1956-07-17 1956-07-17 Theophylline derivatives

Publications (1)

Publication Number Publication Date
GB841196A true GB841196A (en) 1960-07-13

Family

ID=10174409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2213256A Expired GB841196A (en) 1956-07-17 1956-07-17 Theophylline derivatives

Country Status (1)

Country Link
GB (1) GB841196A (en)

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