摘要:
The present invention relates to novel 4-hydroxy derivatives of 5,6,9,10-tetrahydro-10-[(2-methyl-1 H -imidazol-1-yl)methyl]-4 H -pyrido-[3,2,1-jk]-carbazol-11(8 H )-one with 5-HT 3 -receptor antagonistic activity. Furthermore, the invention relates to a process for the preparation of the novel derivatives.