申请人:Sumitomo Chemical Company, Limited
公开号:US03974145A1
公开(公告)日:1976-08-10
Novel indolylacetic acid derivatives, which have excellent anti-inflammatory, antipyretic and analgesic activities, represented by the formula, ##SPC1## Wherein X.sub.1 and X.sub.2 each is a member selected from the group consisting of oxygen and methylene; A is a member selected from the group consisting of unsubstituted saturated hydrocarbon chain having up to 5 carbon atoms, unsubstituted unsaturated hydrocarbon chain having up to 5 carbon atoms and substituted saturated or substituted ethylenically unsaturated hydrocarbon chain having up to 5 carbon atoms, in which the substituents are selected from the group consisting of halogen or phenyl, the hydrocarbon chain being straight or blanched one; m is 0 or 1; n is 1 or 2; R.sub.1 and R.sub.2 each is a member selected from the group consisting of hydrogen and alkyl having up to 4 carbon atoms; R.sub.3 is a member selected from the group consisting of alkyl having up to 4 carbon atoms, unsubstituted or a lower alkyl-, lower alkoxy-, lower alkylthio-, nitro-, cyano-, methylenedioxy-, ethylenedioxy- or halogen-substituted aryl, each of said alkyl, alkoxy and alkylthio substituents containing up to 4 carbon atoms, or unsubstituted, or halogen-, alkyl- or phenyl-substituted or benzene ring-condensed, saturated or unsaturated mono- or poly-aclicyclic group, or alkyl group substituted by said alicyclic group, or unsubstituted or methyl-, ethyl- or halogen-substituted 5- or 6-membered heterocyclic ring group containing oxygen, sulfur or nitrogen atom; R.sub.4 is a member selected from the group consisting of alkyl having up to 4 carbon atoms or hydrogen, or a group of M (wherein M is a cation). The indolylacetic acid of the formula (I) is prepared by reacting a compound of the formula, ##SPC2## Wherein X.sub.1, X.sub.2 and n are the same as defined above and B is a member selected from the group consisting of ##EQU1## and Z (wherein Z is a nitrogen protecting system comprising at least one readily removable group), with an acid halide represented by the formula, R.sub.3 --(A).sub.m --CO--hal (V) wherein R.sub.3, A and m are the same as defined above and hal is halogen, to obtain N.sup.1 -acylated compound of the formula, ##SPC3## Wherein X.sub.1, X.sub.2, R.sub.3, A, B, m and n are the same as defined above, then reacting the resultant N.sup.1 -acylated compound (II) with an aliphatic acid derivative represented by the formula, ##EQU2## wherein R.sub.1, R.sub.2 and R.sub.4 are the same as defined above.
具有出色的抗炎、退烧和镇痛活性的新型吲哚乙酸衍生物,其化学式如下:##SPC1##其中X.sub.1和X.sub.2分别是从氧和亚甲基组成的群体中选择的成员;A是从具有高达5个碳原子的未取代饱和碳氢链、具有高达5个碳原子的未取代不饱和碳氢链和具有高达5个碳原子的取代饱和或取代乙烯不饱和碳氢链中选择的成员,其中取代基选择自卤素或苯基,碳氢链是直链或分枝的;m为0或1;n为1或2;R.sub.1和R.sub.2分别是从氢和具有高达4个碳原子的烷基中选择的成员;R.sub.3是从具有高达4个碳原子的烷基、未取代或低级烷氧基、低级烷基硫基、硝基、氰基、亚甲二氧基、乙二氧基或卤素取代的芳基中选择的成员,每个烷基、烷氧基和烷基硫基取代基含有高达4个碳原子,或未取代、卤素、烷基或苯基取代的或苯环共轭的、饱和或不饱和的单环或多环脂环基,或由该脂环基取代的烷基基团,或未取代或甲基、乙基或卤素取代的含氧、硫或氮原子的5-或6-成员杂环环基;R.sub.4是从具有高达4个碳原子的烷基或氢中选择的成员,或M(其中M是阳离子)的一个基团。公式(I)的吲哚乙酸是通过将公式如下的化合物:##SPC2##其中X.sub.1、X.sub.2和n与上述定义相同,B是从##EQU1##和Z(其中Z是包含至少一个容易去除的基团的氮保护系统)的群体中选择的成员,与代表公式的酸卤化物反应得到公式的N.sup.1-酰化化合物:##SPC3##其中X.sub.1、X.sub.2、R.sub.3、A、B、m和n与上述定义相同,然后将所得的N.sup.1-酰化化合物(II)与代表公式的脂肪酸衍生物反应:##EQU2##其中R.sub.1、R.sub.2和R.sub.4与上述定义相同。