申请人:Tobishi Pharmaceutical Co., Ltd.
公开号:US04725578A1
公开(公告)日:1988-02-16
New compounds of the following general formula: ##STR1## wherein R.sub.1 is acyl, alkyl, cycloalkyl, carboxyalkyl or ester thereof, heterocyclic group, saccharide residue or hydrogen atom, R.sub.2 stands for hydrogen atom or a lower alkyl and R.sub.3 represents hydrogen atom or a nitrogen-containing group, are provided, among these, some of the compounds to be isolated and purified from a plant belonging to Genus Rubia, other compounds being prepared by chemically modifying the isolated compounds with various kind of substituents and these new compounds having therapeutic effect, in particular such as antineoplastic, emetic, anorexigenic, psychotropic, vasoconstrictive, papaverinic, antiperkinsonian and/or antidiuretic effect.
以下通用公式的新化合物:##STR1## 其中 R.sub.1 是酰基,烷基,环烷基,羧基烷基或其酯,杂环基团,糖苷残基或氢原子,R.sub.2 代表氢原子或较低的烷基,R.sub.3 代表氢原子或含氮基团,提供了一些这些化合物要从属于茜草属植物中分离和纯化,其他化合物通过化学修饰已分离的化合物与各种取代基制备,这些新化合物具有治疗效果,特别是抗肿瘤,呕吐,厌食,精神药,血管收缩,罂粟碱,抗帕金森病和/或抗利尿效果。