Title:
ESTERS OF 2,6-DIMETHYL-1,4-DIHYDROPYRIDINE-3,5-DICARBOXYLIC ACID AND METHOD OF OBTAINING THEREOF
Document Type and Number:
WIPO Patent Application WO/1980/000345
Kind Code:
A1
Abstract:
Esters of 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid of a general formula: (FORMULA) where "R" is a substituted alkyl or terpenyl. The method of obtaining the said esters consisting in subjecting the esters of the acid of a general formula: CH3COCH2COOR, where "R" is a substituted alkyl or terpenyl, to reaction with the hexamethylenetetramine in the presence of the ammonium acetate in the medium of the ethylic alcohol at its boiling temperature, whereas the esters of the acetoacetic acid of the abovementioned general formula, the hexamethylenetetramine and the ammonium acetate may be taken in stoichiometric proportion.
Inventors:
ULDRIKIS Y (SU)
ZIDERMANE A (SU)
BISENIEKS E (SU)
PREISA I (SU)
DUBUR G (SU)
TIRZIT G (SU)
ZIDERMANE A (SU)
BISENIEKS E (SU)
PREISA I (SU)
DUBUR G (SU)
TIRZIT G (SU)
Application Number:
PCT/SU1979/000064
Publication Date:
March 06, 1980
Filing Date:
August 07, 1979
Export Citation:
Assignee:
INST ORGANICHESKOGO SINTEZA AK (SU)
ULDRIKIS Y (SU)
ZIDERMANE A (SU)
BISENIEKS E (SU)
PREISA I (SU)
DUBUR G (SU)
TIRZIT G (SU)
ULDRIKIS Y (SU)
ZIDERMANE A (SU)
BISENIEKS E (SU)
PREISA I (SU)
DUBUR G (SU)
TIRZIT G (SU)
International Classes:
A61K31/4422; A61K31/455; A61P35/00; A61P35/04; C07D211/00; C07D211/90; (IPC1-7): C07D211/90; A61K31/44
Foreign References:
| GB1426499A | 1976-02-25 | |||
| SU300465A1 | ||||
| DE2349538A1 | 1975-04-10 | |||
| US3948924A | 1976-04-06 |
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