SE7502847L - - Google Patents

Info

Publication number
SE7502847L
SE7502847L SE7502847A SE7502847A SE7502847L SE 7502847 L SE7502847 L SE 7502847L SE 7502847 A SE7502847 A SE 7502847A SE 7502847 A SE7502847 A SE 7502847A SE 7502847 L SE7502847 L SE 7502847L
Authority
SE
Sweden
Prior art keywords
carbalkoxy
pyrimidine
oxo
salts
ethyl
Prior art date
Application number
SE7502847A
Other versions
SE420096B (en
Inventor
M Pesson
Original Assignee
Bellon Labor Sa Roger
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 Bellon Labor Sa Roger filed Critical Bellon Labor Sa Roger
Publication of SE7502847L publication Critical patent/SE7502847L/xx
Publication of SE420096B publication Critical patent/SE420096B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems

Landscapes

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

Abstract

A process for the preparation of 6-carbalkoxy-8-ethyl-5-oxo-2-piperazinyl-5,8-dihydro pyrido ¢2,3-d! pyrimidine (II) and salts thereof comprising reacting a 6-carbalkoxy-8-ethyl-2-halogeno-5-oxo-5,8-dihydro pyrido ¢2,3-d! pyrimidine with a neutral salt of piperazine in a dilute alcoholic medium in the presence of a base for maintaining the pH between 2.7 and 3.6. The compounds (II) are obtained as their salts and may be liberated by alkaline treatment. The esters of formula (II) may be hydrolyzed to give the corresponding acids, which are antibacterial products particularly active on Gram-negative germs.
SE7502847A 1974-03-15 1975-03-13 PROCEDURE FOR PREPARING 8-ETHYL-5-OXO-2-PIPERAZINYL-5,8-DIHYDRO-PYRIDO / 2,3-D / PYRIMIDIN-6-CARBONIC ACID SE420096B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7408978A FR2264016B1 (en) 1974-03-15 1974-03-15

Publications (2)

Publication Number Publication Date
SE7502847L true SE7502847L (en) 1975-09-16
SE420096B SE420096B (en) 1981-09-14

Family

ID=9136412

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7502847A SE420096B (en) 1974-03-15 1975-03-13 PROCEDURE FOR PREPARING 8-ETHYL-5-OXO-2-PIPERAZINYL-5,8-DIHYDRO-PYRIDO / 2,3-D / PYRIMIDIN-6-CARBONIC ACID

Country Status (14)

Country Link
JP (1) JPS6053032B2 (en)
CA (1) CA1050538A (en)
CH (1) CH602726A5 (en)
CS (1) CS191261B2 (en)
DD (1) DD117881A5 (en)
DK (1) DK149430C (en)
FR (1) FR2264016B1 (en)
GB (1) GB1482853A (en)
IN (1) IN140837B (en)
NL (1) NL184835C (en)
PL (1) PL94508B1 (en)
RO (1) RO67338A (en)
SE (1) SE420096B (en)
YU (1) YU39115B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326118A1 (en) 1982-08-02 1984-02-09 Byk Gulden Lomberg Chemische Fabrik Gmbh, 7750 Konstanz Pyridopyrimidinetriones, processes for their preparation, their use and medicaments containing them
JPH05136541A (en) * 1991-11-11 1993-06-01 Nippon Avionics Co Ltd Printed wiring board

Also Published As

Publication number Publication date
DK149430B (en) 1986-06-09
NL184835B (en) 1989-06-16
PL94508B1 (en) 1977-08-31
JPS50148384A (en) 1975-11-27
JPS6053032B2 (en) 1985-11-22
YU39115B (en) 1984-06-30
RO67338A (en) 1980-01-15
DK72475A (en) 1975-09-16
NL7503166A (en) 1975-09-17
NL184835C (en) 1989-11-16
YU61075A (en) 1982-02-28
IN140837B (en) 1976-12-25
CA1050538A (en) 1979-03-13
CH602726A5 (en) 1978-07-31
GB1482853A (en) 1977-08-17
CS191261B2 (en) 1979-06-29
FR2264016B1 (en) 1978-06-16
DK149430C (en) 1986-11-17
SE420096B (en) 1981-09-14
DD117881A5 (en) 1976-02-05
FR2264016A1 (en) 1975-10-10

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