Scheme 15.
Synthesis of methyl (1R,4aS)-7-isopropyl-1,4a-dimethyl-9-[2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl]-2,3,4,4a,9,13c-hexahydro-1H-dibenzo[a,c]carbazole-1-carboxylate (82).
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