ES378280A1 - Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES378280A1
ES378280A1 ES378280A ES378280A ES378280A1 ES 378280 A1 ES378280 A1 ES 378280A1 ES 378280 A ES378280 A ES 378280A ES 378280 A ES378280 A ES 378280A ES 378280 A1 ES378280 A1 ES 378280A1
Authority
ES
Spain
Prior art keywords
formula
translation
4ars
procedure
radical
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
ES378280A
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
Priority claimed from CH525869A external-priority patent/CH513864A/en
Priority claimed from CH691169A external-priority patent/CH517744A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of ES378280A1 publication Critical patent/ES378280A1/en
Expired legal-status Critical Current

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  • Pyridine Compounds (AREA)

Abstract

Procedure for obtaining pyridine derivatives, of general formula Ib, **(See formula)** wherein RI1 signifies a lower alkyl, alkenyl or alkynyl radical, R2 signifies chlorine, bromine, fluorine, or a lower alkyl radical, and R3 signifies hydrogen, chlorine, bromine, fluorine, or an alkyl, alkylthio or lower alkoxy radical, or trifluomethyl, characterized in that a compound (4aRS, 5SR, 9bSR) or (4aR5,5SR, 9bRS), respectively, of formula Ia is reacted, **(See formula)** wherein R2 and R3 have the meanings indicated above, with a compound of formula II, **(See formula)** where RI1 has the meaning indicated above, and X means halogen or the acidic radical of a reactive ester, in the presence of a basic condensing agent, and, if necessary, the compound mixtures are separated (4aRS, 5SR, 9bSR) and (4aRS, 5SR, 9bRS) in order to isolate one or each of the isomers. (Machine-translation by Google Translate, not legally binding)
ES378280A 1969-04-08 1970-04-06 Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding) Expired ES378280A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH525869A CH513864A (en) 1969-04-08 1969-04-08 New heterocyclic antiphlogistic compounds
CH691169A CH517744A (en) 1969-05-06 1969-05-06 New heterocyclic antiphlogistic compounds
CH889169 1969-06-11

Publications (1)

Publication Number Publication Date
ES378280A1 true ES378280A1 (en) 1973-01-16

Family

ID=27175149

Family Applications (1)

Application Number Title Priority Date Filing Date
ES378280A Expired ES378280A1 (en) 1969-04-08 1970-04-06 Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES378280A1 (en)

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