Research on dual inhibitors of both 5-LOX and COXs gained interest due to the overexpressions of these enzymes during the malignant state of the evolution of prostate cancer. In order to take part in this research, new N-aroyl-tetrahydro-gamma-carbolines issued from the modi. cation of Indomethacin have been synthesised. As for the NSAIDs, the compounds have been tested for their activity against COX1, COX2 plus against 5-LOX and against the proliferation of malignant prostate cancer. Interesting cytotoxic activities and selectivities of some tetrahydro-gamma-carboline derivatives have been obtained. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of 8-substituted tetrahydro-γ-carbolines
The Fischer reaction is applied to the synthesis of 8-substituted tetrahydro-γ-carbolines with electron-donating or electron-withdrawing groups, using catalytic or thermal methods. The reaction conditions must be varied according to the nature of the N 1 substituent of the piperidone. The best results are observed when a releasing group is present on the arylhydrazine and a benzyl substituent on the