Acetic Acid → methyl 3-cyclohexyl-2-[2-({[2-(dimethylamino)ethyl]amino}methyl)phenyl]-1-(3-methoxy-3-oxopropyl)-1H-indole-6-carboxylate

Participants

Reaction Steps

To a solution of methyl 3-cyclohexyl-2-(2-formylphenyl)-1-(3-methoxy-3-oxopropyl)-1H-indole-6-carboxylate in THF (0.1 M), N,N-dimethylethane-1,2-diamine (10 eq) was added and the pH adjusted to pH=6 with HOAc. The solution was stirred at RT for 1 h, before the THF was concentrated in vacuo and the residue taken up in MeOH. To the methanolic solution (0.1 M) NaBH3CN (2 eq) was added and the mixture stirred at RT overnight. The reaction mixture was diluted with EtOAc. The organic phase was washed with NaHCO3 (s.s.), H2O and brine. The organic phase was dried (Na2SO4), filtered and concentrated in vacuo. The title compound was used as crude in the next step; MS (ES+) m/z 520 (M+H)+.

Provenance & Evidence