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ES364005A1 - PROCEDURE FOR OBTAINING QUINAZO-LINONE DERIVATIVES. - Google Patents

PROCEDURE FOR OBTAINING QUINAZO-LINONE DERIVATIVES.

Info

Publication number
ES364005A1
ES364005A1 ES364005A ES364005A ES364005A1 ES 364005 A1 ES364005 A1 ES 364005A1 ES 364005 A ES364005 A ES 364005A ES 364005 A ES364005 A ES 364005A ES 364005 A1 ES364005 A1 ES 364005A1
Authority
ES
Spain
Prior art keywords
radical
carbon atoms
alkyl
atom
formula
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
ES364005A
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 Sandoz AG filed Critical Sandoz AG
Publication of ES364005A1 publication Critical patent/ES364005A1/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Procedure for obtaining quinazolinone derivatives of the formula **(See formula)** wherein R'means a fluorine, chlorine or bromine atom, an alkyl radical of 1 to 5 carbon atoms, an alkoxy radical of 1 to 4 carbon atoms, an alkylthio radical of 1 to 4 carbon atoms, or a nitro, cyano, acetamido or trifluoromethyl group, n represents 1 or 2, with the conditions i) that when n = 1, R'does not mean a halogen atom, and ii) that when n = 2, each of the R', which may be the same or different, represents an alkyl or alkoxy radical or a halogen atom, R'1 means an alkyl radical of 1 to 5 carbon atoms, does not mean a tertiary alkyl group in which the tertiary carbon atom is directly linked to the nitrogen atom of the ring, or a ring radical or propargyl, with the proviso that R'1 can only mean an isopropyl radical when n = 1 and R means a hydroxyl, amino, cyano, acetamido or mercapto group, and R2 signifies a fernyl radical or a substituted phenyl radical of formula II, **(See formula)** wherein Y means a fluorine, chlorine or bromine atom, an alkyl radical of 1 to 4 carbon atoms, an alkoxy radical of 1 to 4 carbon atoms, or a trifluoromethyl group, or Y means a hydrogen atom, a fluorine, chlorine or bromine atom, an alkyl radical of 1 to 4 carbon atoms, or an alkoxy radical of 1 to 4 carbon atoms, Y or Y1 being alkoxy when R is hydroxy or mercapto, characterized in that a compound of formula III is reacted, **(See formula)** wherein R', R'1, R2, n are as defined above, with a lower alkyl (C1-C5) carbamate, preferably urethane, in the presence of a catalytic amount of a Lewis acid, for example zinc chloride, at a temperature of at least 140ºC, preferably 160º to 200ºC. (Machine-translation by Google Translate, not legally binding)
ES364005A 1968-02-26 1969-02-24 PROCEDURE FOR OBTAINING QUINAZO-LINONE DERIVATIVES. Expired ES364005A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70793268A 1968-02-26 1968-02-26
US74180468A 1968-07-01 1968-07-01

Publications (1)

Publication Number Publication Date
ES364005A1 true ES364005A1 (en) 1971-02-16

Family

ID=27107992

Family Applications (1)

Application Number Title Priority Date Filing Date
ES364005A Expired ES364005A1 (en) 1968-02-26 1969-02-24 PROCEDURE FOR OBTAINING QUINAZO-LINONE DERIVATIVES.

Country Status (10)

Country Link
BG (4) BG17596A3 (en)
DK (3) DK128007B (en)
ES (1) ES364005A1 (en)
IE (1) IE33434B1 (en)
IL (1) IL31683A (en)
NO (1) NO128962B (en)
OA (1) OA03389A (en)
PL (2) PL79534B1 (en)
RO (2) RO55407A (en)
SE (1) SE353911B (en)

Also Published As

Publication number Publication date
BG17596A3 (en) 1973-11-10
BG17592A3 (en) 1973-11-10
PL79534B1 (en) 1975-06-30
BG17597A3 (en) 1973-11-10
IL31683A (en) 1974-09-10
SE353911B (en) 1973-02-19
DK128007B (en) 1974-02-18
IE33434B1 (en) 1974-06-26
NO128962B (en) 1974-02-04
IE33434L (en) 1969-08-26
PL70441B1 (en) 1974-02-28
BG17595A3 (en) 1973-11-10
OA03389A (en) 1970-12-15
DK127187B (en) 1973-10-01
RO55407A (en) 1974-03-01
RO57857A (en) 1975-02-15
DK128564B (en) 1974-05-27
IL31683A0 (en) 1969-04-30

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