N-R-AMIDES OF (Z)-2[(3-ETHOXYCARBONYL)-4,5,6,7-TETRAHYDROBENZO [b]THIEN-2-YL)AMINO]-4-PHENYL-4-OXOBUT-2-ENOIC ACIDS, HAVING ANALGESIC ACTIVITY Russian patent published in 2013 - IPC C07D333/68 C07D409/12 A61K31/381 A61P29/00 

Abstract RU 2501795 C1

FIELD: chemistry.

SUBSTANCE: invention relates to N-R- amides of (Z)-2-[(3-(ethoxycarbonyl)-4,5,6,7-tetrahydrobenzo[b]thien-2-yl)amino]-4-phenyl-4-oxobut-2-enoic acids (1-4) of general formula:

.

Acid amides (1-4) are obtained by reacting ethyl ether of 2-[(2-oxo-5-phenyl-(2H)-furanylidene)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylic acid with R-amines in a medium of pure toluene at 25-110°C, followed by separation of the end product using known techniques.

EFFECT: obtaining novel compounds with high output, having marked analgesic activity and low toxicity.

2 tbl, 5 ex

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RU 2 501 795 C1

Authors

Shipilovskikh Sergej Aleksandrovich

Makhmudov Ramiz Ragibovich

Rubtsov Aleksandr Evgen'Evich

Dates

2013-12-20Published

2012-10-01Filed