| abstract |
The present invention relates to a novel process for the preparation of compounds of general formula (I) known as anti-malarial drugs, wherein R 1 is C 1-6 alkyl; R2 and R3 are independently hydrogen, halo, triflurethyl, or C1-6alkyl; R4 is C1-6alkyl; R 5 is a hydrogen atom or a C 1-6 alkyl radical; and R6 is a nitrile coat or amine powder. According to the invention, compounds of the general formula (I) are prepared, compounds of the general formula (II), wherein R1, R4 and R5 are absent and X is an exit pipe, are reacted with a compound of general formula (III) wherein R2 and R3 are as defined above. upper. The invention relates to the novel intermediates used in the above process, more specifically to certain novel compounds within the general formula (I). ŕ |