GB1271034A - METHOD OF PRODUCING 4-HYDROXY-PYRAZOLO(3,4-d)PYRIMIDINE - Google Patents

METHOD OF PRODUCING 4-HYDROXY-PYRAZOLO(3,4-d)PYRIMIDINE

Info

Publication number
GB1271034A
GB1271034A GB3735870A GB3735870A GB1271034A GB 1271034 A GB1271034 A GB 1271034A GB 3735870 A GB3735870 A GB 3735870A GB 3735870 A GB3735870 A GB 3735870A GB 1271034 A GB1271034 A GB 1271034A
Authority
GB
United Kingdom
Prior art keywords
pyrimidine
hydroxy
pyrazolo
producing
reacting
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
GB3735870A
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.)
GEORG HENNING CHEM PHARM WERK GmbH
Original Assignee
GEORG HENNING CHEM PHARM WERK GmbH
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 JP503169A external-priority patent/JPS482216B1/ja
Priority claimed from DE19691950076 external-priority patent/DE1950076C2/en
Application filed by GEORG HENNING CHEM PHARM WERK GmbH filed Critical GEORG HENNING CHEM PHARM WERK GmbH
Publication of GB1271034A publication Critical patent/GB1271034A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • C08L71/03—Polyepihalohydrins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1,271,034. Hydroxy-pyrazolopyrimidine preparation. DR. GEORG HENNING CHEM. PHARM. WERK G.m.b.H. 3 Aug., 1970 [3 Oct., 1969], No. 37358/70. Heading C2C. 4 - Hydroxy - pyrazolo - (3,4 - d) - pyrimidine is prepared by reacting 4,6-dichloro-5-formylpyrimdine with hydrazine in an inert solvent in the presence of a tertiary amine at -30‹ to + 10‹ C. and reacting the resulting 4-chloropyrazolo-(3,4-d)-pyrimidine with alkali.
GB3735870A 1969-01-25 1970-01-22 METHOD OF PRODUCING 4-HYDROXY-PYRAZOLO(3,4-d)PYRIMIDINE Expired GB1271034A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP503169A JPS482216B1 (en) 1969-01-25 1969-01-25
DE19691950076 DE1950076C2 (en) 1969-10-03 Process for the production of 4-hydroxy-pyrazolo- square bracket to 3,4-square bracket to pyrimidine

Publications (1)

Publication Number Publication Date
GB1271034A true GB1271034A (en) 1972-04-19

Family

ID=25757971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3735870A Expired GB1271034A (en) 1969-01-25 1970-01-22 METHOD OF PRODUCING 4-HYDROXY-PYRAZOLO(3,4-d)PYRIMIDINE

Country Status (1)

Country Link
GB (1) GB1271034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102219787A (en) * 2011-05-17 2011-10-19 重庆万利康制药有限公司 Method for synthesizing 4-hydroxy pyrazolo[3,4-d]pyrimidine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102219787A (en) * 2011-05-17 2011-10-19 重庆万利康制药有限公司 Method for synthesizing 4-hydroxy pyrazolo[3,4-d]pyrimidine

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees