4,4-DISUBSTITUIERTE SPIRO-1,4-DIHYDROPYRIDINE, EIN VERFAHREN ZU IHRER HERSTELLUNG, SOWIE IHRE VERWENDUNG ALS ZWISCHENPRODUKT

The invention relates to 4,4-disubstituted spiro-1,4-dihydropyridine compounds of formula (I). Also included in the invention are methods for producing the compounds of formula (I) by (a) cyclizing a compound of formula (II) in the presence of a base or (b) reducing a sulphinyl compound of formula (...

Full description

Saved in:
Bibliographic Details
Main Author GOLDMANN,SIEGFRIED,.DR
Format Patent
LanguageGerman
Published 14.01.1982
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:The invention relates to 4,4-disubstituted spiro-1,4-dihydropyridine compounds of formula (I). Also included in the invention are methods for producing the compounds of formula (I) by (a) cyclizing a compound of formula (II) in the presence of a base or (b) reducing a sulphinyl compound of formula (I) by means of Raney nickel. The compounds of formula I are intermediates and can be converted to sulphur-free compounds of formula (III) which are known to be useful for treating circulatory illnesses.
Bibliography:Application Number: DE19803023820