Unlike their ortho counterparts, meta- and para-acetamidoanilines can be converted into the corresponding acetamidoarenediazoniumsalts. These offer various opportunities for multiple Pd-catalyzed arene functionalization reactions, such as Matsuda-Heck-, Suzuki-Miyaura- or Fujiwara-Moritani couplings.
A photoresist composition comprising a resin which comprises a structural unit derived from a compound having an acid-labile group and which is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid, an acid generator and a compound represented by the formula (I′):
wherein R51, R52, R53 and R54 independently each represent a C1-C8 alkyl group, and A11 represents a C3-C36 divalent saturated cyclic hydrocarbon group which can contain one or more heteroatoms and which have one or more substituents or a C6-C20 divalent aromatic hydrocarbon group which can contain one or more heteroatoms and which have one or more substituents.
(EN) A compound of the formula Het-NR-SO2-Ph2-A-Ph1 (COOH)(OH) and tautomic form, salts, solvates, C1-6 alkyl esters and pharmaceutical compositions of the compound. Ph1 and Ph2 are benzene rings with the proviso that carboxy and hydroxy are ortho to one another. Het includes an optionally substituted heterocyclic ring which includes conjugated double bonds and binds to nitrogen in NR. The compound is characterized in that A is a bridge which is stable against reduction because it is not azo, and in that R is hydrogen or lower alkyl. The invention also includes the preparation of the compound and its use as a drug, particularly for treating autoimmune diseases.(FR) On décrit un composé de la formule Het-NR-SO2-Ph2-A-Ph1 (COOH)(OH), ses formes tautomères, sels, solvates, (C1-C6)alkyle esters, ainsi que les compositions pharmaceutiques du composé. Ph1 et Ph2 sont des noyaux benzéniques dans lesquels les groupes carboxy et hydroxy doivent être en position ortho l'un par rapport à l'autre. Le groupe Het comprend un groupe hétérocyclique (le cas échéant substitué), comportant des doubles liaisons conjuguées et lié à l'azote du groupe NR. Le composé est caractérisé par le fait que A est un pont résistant à la réduction, parce qu'il ne s'agit pas d'un groupe azo, et par le fait que R est un hydrogène ou un alkyle inférieur. L'invention concerne également la préparation du composé et son utilisation en tant que médicament, en particulier pour le traitement d'affections auto-immunes.
A compound of the formula Het--NR--SO.sub.2 --Ph.sup.2 --A--Ph.sup.1 (COOH)(OH) and tautomic form, salts, solvates, C.sub.1-6 alkyl esters and pharmaceutical compositions of the compound. Ph.sup.1 and Ph.sup.2 are benzene rings with the proviso that carboxy and hydroxy are ortho to one another. Het includes an optionally substituted heterocyclic ring which includes conjugated double bonds and binds to nitrogen in NR. The compound is characterized in that A is a bridge which is stable against reduction because it is not azo, and in that R is hydrogen or lower alkyl. The invention also includes the preparation of the compound and its use as a drug, particularly for treating autoimmune diseases.
该化合物的化学式为 Het--NR--SO.sub.2 --Ph.sup.2 --A--Ph.sup.1 (COOH)(OH),并包括其互变异构体、盐、溶剂合物、C.sub.1-6烷基酯和该化合物的药物组成物。其中,Ph.sup.1 和 Ph.sup.2 是苯环,但需满足羧基和羟基相对位于苯环的邻位。Het 包括一个可选取代的杂环,其中包括共轭双键并与 NR 中的氮原子结合。该化合物的特点是 A 是一种桥接基团,由于不是偶氮化合物,因此对还原稳定,而 R 为氢或低碳基。本发明还包括该化合物的制备方法以及其作为药物的用途,特别是用于治疗自身免疫性疾病。
N-heterocyclic substituted salicylic acids
申请人:Pharmacia AB
公开号:US05556855A1
公开(公告)日:1996-09-17
A compound of the formula Het--NR--SO.sub.2 --Ph.sup.2 --A--Ph.sup.1 (COOH)(OH) and tautomic form, salts, solvates, C.sub.1-6 alkyl esters and pharmaceutical compositions of the compound. Ph.sup.1 and Ph.sup.2 are benzene rings with the proviso that carboxy and hydroxy are ortho to one another. Het includes an optionally substituted heterocyclic ring which includes conjugated double bonds and binds to nitrogen in NR. The compound is characterized in that A is a bridge which is stable against reduction because it is not azo, and in that R is hydrogen or lower alkyl. The invention also includes the preparation of the compound and its use as a drug, particularly for treating autoimmune diseases.