Maleimide → 6-(3-{[Tert-butyl(dimethyl)silyl]oxy}propyl)-9-methoxy-4-(2-methoxyphenyl)-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2h, 3ah)-dione

Beteiligte Stoffe

Reaktionsschritte

The reaction of 1-(3-{[tert-Butyl(dimethyl)silyl]oxy}propyl)-2-[2-(2-chloro-6-methoxyphenyl)ethenyl]-5-methoxy-1H-indole (III; Ar=2-chloro-6-methoxyphenyl, R10═CH2CH2CH2OSiMe2t-Bu) (103) prepared as described in example 56 with maleimide using the procedure described in example 68 gave 6-(3-[tert-Butyl(dimethyl)silyl]oxy}propyl)-4-(2-chloro-6-methoxyphenyl)-9-methoxy-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2H,3aH)-dione (IV; Ar=2-chloro-6-methoxyphenyl, R10═CH2CH2CH2OSiMe2t-Bu) (104) in a 77% yield as a cream powder, which was used without further purification.

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