| 摘要 |
The invention relates to a new group of 8,9-annelated-1,2,3,4-tetrahydro- beta -carbolines of the formula <CHEM> and the salts and prodrugs thereof. In this formula the symbols have the following meaning: R1 is straight or branched alkyl having 1-3 C-atoms, or is straight or branched alkoxy or alkylthio having 1-4 C-atoms , or R1 is a group R5R6N-CO- wherein R5 and R6 independently of each other are hydrogen, alkyl having 1-3 C-atoms, or together with the nitrogen atom constitute a heterocyclic 5 - or 6 - ring, or R1 is hydroxy, halogen, cyano, trifluoromethyl; n has the value 0 or 1; Z , together with the two carbon atoms and the nitrogen atom, constitutes a heterocyclic group which consists of 9-12 ring atoms and which, in addition to the nitrogen atom already present, may comprise a sulpur atom as second hetero atom and which group may be substituted with 1-4 methyl groups or with a spiroalkyl group; R2 is hydrogen, straight or branched alkyl having 1-8 C-atoms, alkenyl or alkynyl having 2-8 C-atoms, which groups may be substituted with one or more fluorine atoms, with a phenyl group which may be substituted with a halogen atom, an alkyl group having 1-3 C- atoms, methoxy or trifluoromethyl, or with the cyclopropyl group or R2 is cycloalkyl having 3-8 C-atoms which may be substituted with one or more alkyl groups having 1-4 C-atoms, or R2 is cycloalkenyl having 5-7 C-atoms, or R2 is a phenyl group substituted with 0-2 groups R7, wherein R7 is straight or branched alkyl having 1-4 C-atoms which may be substituted with one or more fluorine atoms, or two alkyl groups R7 bound to adjacent carbon atoms constitute a ring annelated to the phenyl group and consisting of 5-7 C-atoms, or R7 is cycloalkyl, cycloalkoxy or cycloalkylthio having 3-7 C-atoms, or R7 is straight or branched alkoxycarbonyl having 1-4 C-atoms in the alkoxy group, or R7 is halogen or hydroxy; R3 is hydrogen or straight or branched alkyl having 1-6 C-atoms; and R4 is hydrogen, straight or branched alkyl having 1-4 C-atoms. It has been found that the compounds have good fibrinolytic properties and can be used in particular as orally active fibrinolytics. |
