Carbazole derivatives

Details Carbazole derivatives Carbazole derivatives

C - Chemistry, Metallurgy

07

D

260/318

C07D 209/82 (2006.01) C07D 209/86 (2006.01) C07D 209/88 (2006.01)

Patent

CA 1107745

ABSTRACT The invention relates to a novel process for the preparation of the known compound of formula Image V starting from the compound of formula Image IIIb as well as to a process for the preparation of the compound of formula IIIb starting from a compound of formula Image IIb wherein R1 is lower alkyl, and to novel carbazole intermediates utilized in these processes.

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