申请人:A. Nattermann & Cie. GmbH
公开号:US04309407A1
公开(公告)日:1982-01-05
The invention provides novel .omega.-(5-alkenylthien-2-yl)alkanecarboxylic acids and their functional derivatives having the formula ##STR1## wherein n is an integer from 1 to 9, inclusive; R.sup.1 is H and R.sup.2 is --OH, or R.sup.1 and R.sup.2 together with the wavy lines represent a keto group; and R.sup.3 is H, C.sub.1 -C.sub.6 straight or branched-chain saturated hydrocarbon, or a pharmaceutically acceptable alkali cation. The 3-oxoalkenyl-substituted compounds of formula (I) are prepared by a Wittig-Horner reaction using a 2-oxoheptylphosphonic acid dialkyl ester and an aldehyde of the formula ##STR2## as starting materials, while the 3-hydroxyalkenyl-substituted compounds are obtained by reduction of the corresponding 3-oxoalkenyl compounds. The esters of formula (I) can also be readily converted to the corresponding acids and salts of formula (I). The compounds of the invention have valuable anti-inflammatory, antipyretic and anti-arteriosclerotic properties, yet have low toxicity and do not irritate the gastric mucosa.
本发明提供了具有以下结构的新型ω-(5-烯基噻吩-2-基)烷基羧酸及其功能衍生物:其中n是1到9之间的整数;R^1是H,R^2是—OH,或者R^1和R^2与波浪线一起表示酮基;R^3是H,C1-C6直链或支链饱和碳氢化合物,或者是药用可接受的碱金属阳离子。公式(I)的3-氧代烯基取代化合物通过使用2-氧代庚基膦酸二烷基酯和具有以下结构的醛作为起始原料,经Wittig-Horner反应制备,而3-羟基烯基取代化合物通过还原相应的3-氧代烯基化合物获得。公式(I)的酯也可以方便地转化为相应的酸和盐。本发明的化合物具有有价值的抗炎、退热和抗动脉硬化特性,且毒性低,不刺激胃粘膜。