HARMINE DERIVATIVES, INTERMEDIATES USED IN THEIR PREPARATION, PREPARATION PROCESSES AND USE THEREOF

摘要

This invention relates to compounds of general formula (I), wherein R 1 , R 2 , R 3 , R 4 and R 5 are as defined specification; intermediates used in their preparation, preparation processes and use thereof. The present invention produce harmine derivatives with enhanced antihumour activity and lower nervous system toxicity by structurally modification parent structure of ²-carboline of harmines at position 1, 2, 3, 7 and 9, The compounds of the present invention can be pre easily with high yield. They can be used in manufacture of a variety of antitumour medicines and medicines used in treatm tumour diseases in combination of light or radiation therapy.