ES473400A1 - PROCEDURE FOR PREPARING DERIVATIVES OF PIRIMIDO -1,2-A- BENZYMIDAZOLE. - Google Patents

PROCEDURE FOR PREPARING DERIVATIVES OF PIRIMIDO -1,2-A- BENZYMIDAZOLE.

Info

Publication number
ES473400A1
ES473400A1 ES473400A ES473400A ES473400A1 ES 473400 A1 ES473400 A1 ES 473400A1 ES 473400 A ES473400 A ES 473400A ES 473400 A ES473400 A ES 473400A ES 473400 A1 ES473400 A1 ES 473400A1
Authority
ES
Spain
Prior art keywords
pirimido
benzymidazole
procedure
formula
preparing derivatives
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
ES473400A
Other languages
Spanish (es)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES473400A1 publication Critical patent/ES473400A1/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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/24—Benzimidazoles; Hydrogenated benzimidazoles 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 in position 2
    • C07D235/30—Nitrogen atoms not forming part of a nitro radical
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
    • C07D491/14—Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

Process for preparing pyrimido [1,2-a] benzimidazole derivatives, of the formula: (formula) ** wherein one of a7 and a8 is a cyano, acetyl or benzoyl radical and the other of a7 and a8 is hydrogen; characterized in that it comprises cyclizing a 2-aminobenzimidazole derivative of the formula: ## str2 ## wherein a7 and a8 are defined as above and q is a hydroxy, methoxy or ethoxy radical. (Machine-translation by Google Translate, not legally binding)
ES473400A 1977-08-09 1978-09-15 PROCEDURE FOR PREPARING DERIVATIVES OF PIRIMIDO -1,2-A- BENZYMIDAZOLE. Expired ES473400A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3334177 1977-08-09

Publications (1)

Publication Number Publication Date
ES473400A1 true ES473400A1 (en) 1979-04-16

Family

ID=10351713

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473400A Expired ES473400A1 (en) 1977-08-09 1978-09-15 PROCEDURE FOR PREPARING DERIVATIVES OF PIRIMIDO -1,2-A- BENZYMIDAZOLE.

Country Status (6)

Country Link
AR (1) AR217274A1 (en)
CH (1) CH634845A5 (en)
DK (1) DK23578A (en)
ES (1) ES473400A1 (en)
PL (1) PL106798B1 (en)
SU (1) SU805947A3 (en)

Also Published As

Publication number Publication date
CH634845A5 (en) 1983-02-28
DK23578A (en) 1979-02-10
AR217274A1 (en) 1980-03-14
SU805947A3 (en) 1981-02-15
PL106798B1 (en) 1980-01-31

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503