申请人:Roussel-UCLAF
公开号:US04024276A1
公开(公告)日:1977-05-17
Novel xanthone-2-carboxylic acid compounds of the formula ##STR1## wherein A is selected from the group consisting of --COOR', a 1H-tetrazol-5-yl and a 1H-tetrazolylcarbamoyl, R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms and cation of a non-toxic, pharmaceutically acceptable organic or inorganic base, R is selected from the group consisting of hydrogen, alkyl of 1 to 9 carbon atoms, alkoxy of 1 to 9 carbon atoms and alkoxy alkoxy of 2 to 9 carbon atoms and X is selected from the group consisting of ##STR2## AND ##STR3## WHEREIN R.sub.1 is alkyl of 1 to 5 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen, acyl of an aliphatic acid of 1 to 5 carbon atoms, aroyl of 7 to 8 carbon atoms, araliphatic acyl with 1 to 5 carbon atoms in the aliphatic portion and 6 or 7 carbon atoms in the aryl portion, aralkyl of 7 to 8 carbon atoms, arylsulfonyl, a carbamoyl, a carboxyalkyl of 1 to 5 carbon atoms, --CO--(CH.sub.2).sub.n -- Het where n is 1, 2 or 3 and Het is a N-attached nitrogen heterocyclic which may contain an additional heteroatom and ##STR4## AND Alk is alkyl of 1 to 5 carbon atoms and R.sub.3 is arylsulfonyl which possess anti-allergic properties and their preparation.
该专利描述了一种新型黄酮类化合物,其化学式为##STR1## 其中A选自--COOR'、1H-四唑-5-基和1H-四唑基氨甲酰基,R'选自氢、1至5个碳原子的烷基和非毒性、药学上可接受的有机或无机碱的阳离子,R选自氢、1至9个碳原子的烷基、1至9个碳原子的烷氧基和2至9个碳原子的烷氧基烷氧基,X选自##STR2##和##STR3## 其中R1为1至5个碳原子的烷基,R2选自氢、1至5个碳原子的脂肪酸酰基、7至8个碳原子的芳基酰基、脂肪族部分为1至5个碳原子、芳香族部分为6或7个碳原子的芳基脂肪酰基、7至8个碳原子的芳基烷基、芳基磺酰基、氨甲酰基、1至5个碳原子的羧基烷基、--CO--(CH2)n--Het,其中n为1、2或3,Het为N-连接的含有额外杂原子的氮杂环和##STR4## Alk为1至5个碳原子的烷基,R3为芳基磺酰基,具有抗过敏性能,并且提供了它们的制备方法。