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BACKGROUND OF THE INVENTION
The present invention concerns novel ethoxycarbonyloxy ethyl esters of non-steroidal anti-inflammatory substance having a carboxylic acid function, process for their preparation and pharmaceutical compositions containing them.
The novel esters according to the invention
BACKGROUND OF THE INVENTION
The present invention relates to novel 5-(2,3-dihydro-1H-pyrrolizin-5-oyl)-, 5-(2,3-dihydro-1H-pyrrolo[2,1-b]thia zol-5-oyl)-, 5-(2,3-dihydro-1H-pyrrolo[2,1-b]imidazol-5-oyl)-, and 5-(2,3-dihydro-1H-pyrrolo[2,1-b]oxazol-5-oyl)- derivatives of substituted
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to novel 5-aroyl-6-alkylthio, 6-alkylsulfinyl and 6-alkylsulfonyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids and the pharmaceutically acceptable, non-toxic esters and salts thereof. The invention also relates
BACKGROUND OF THE INVENTION
The present invention is directed to the provision of compounds having potent anti-inflammatory and anti-oxidant activity. The invention is further directed to compositions containing the compounds of the present invention for use in pharmaceutical applications. The
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to (i) 5-(4-vinyl- or 4-ethynylbenzoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids and the pharmaceutically acceptable, non-toxic alkyl esters and salts thereof; (ii) the use of these compounds as
STATE OF THE ART
U.S. Pat. No. 4,486,438 describes 4-hydroxy-3-quinoline carboxylic acid derivatives and in particular racemic 4-hydroxy2-1-hydroxypropyl) N-(2-thiazolyl)-8-trifluoromethyl-3-quinolinecarboxamide as having analgesic activity.
OBJECTS OF THE INVENTION
It is an object of the invention
TECHNICAL FIELD
This invention concerns a novel compound, a production process therefor and an anti-inflammatory and analgesic composition containing the novel compound.
DISCLOSURE OF INVENTION
This invention concerns 1-(2,6-dichlorophenyl)-2-quinolinoneimine-3-carboxylic acid represented by the
BACKGROUND OF THE INVENTION
The present invention relates to novel substituted new 5-(2,3-dihydro-1H-pyrrolizin-5-oyl)-, 5-(2,3-dihydro-1H-pyrrolo[2,1-b]thiazol-5-oyl)-, 5-(2,3-dihydro-1H-pyrrolo[2,1-b]imidazol-5-oyl)-, and 5-(2,3-dihydro-1H-pyrrolo[2,1-b]oxazol-5-oyl)-pyrrole-2-alkanoic acid
STATE OF THE ART
U.S. Pat. No. 4,486,438 describes racemic 4-hydroxy-2-(1-hydroxypropyl)-N-(2-thiazolyl)-8-trifluoromethyl-3-quinolin e-carboxamide as having analgesic activity.
OBJECTS OF THE INVENTION
It is an object of the invention to provide the novel compounds of formula I and their salts with
BACKGROUND OF THE INVENTION
The present invention is directed to the provision of compounds having potent anti-inflammatory and anti-oxidant activity. The invention is further directed to compositions containing the compounds of the present invention for use in pharmaceutical applications. The
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to the treatment of indolent dermal irritations. More specifically, it concerns treatment of persistent inflammations such as chemical ulcers, herpes ulcers, radiation burns, psoriasis and sunburn.
2. General Background of
BACKGROUND OF THE INVENTION
A group of novel sulfonyl or carbonyl inositol (PI) derivatives are found to be effective phospholipase C inhibitors which are useful anti-inflammatory and analgesic agents.
Phospholipase C contained in mouse peritoneal macrophages has been linked to the enhanced turnover
BACKGROUND OF THE INVENTION
2-(p-Prenylphenyl)propionic acid (TA-60) described in U.S. Pat. No. 4,251,543 is a very useful anti-inflammatory and analgesic agent as are 2-(p-isobutylphenyl)propionic acid (ibuprofen) and 6-methoxy-.alpha.-methyl-2-naphthaleneacetic acid (naproxen).
SUMMARY OF THE
SUMMARY OF THE INVENTION
This invention relates to new derivatives of pyrazolo[1,5-a]pyrido[3,2-e]pyrimidine-7carboxylic acids and salts thereof. These new compounds have the general formula ##STR2##
The symbols have the following meanings in formula I and throughout this specification:
R, r.sup.1
BRIEF DESCRIPTION OF THE INVENTION
The invention relates to catechol carboxylic acid derivatives of the formula ##STR7## wherein R.sub.1 is ##STR8## hydrogen, acetyl, hydroxy or alkanoyloxy, R.sub.2 is ##STR9## hydroxy, hydrogen or alkanoyloxy, wherein R is hydrogen, lower alkyl or