palladium diacetate; nBu4NOAc*HOAc; tri-cyclo-hexyl-phosphine in ethylene glycol dimethyl ether T=120°C; 24 h; Inert atmosphere;

1: sodium 2,4,5-trimethoxybenzoate With palladium (II) trifluoroacetate in dimethyl sulfoxide T=80°C; 0.5 h; Inert atmosphere; 2: N-acetylindole With dimethyl sulfoxide; propionic acid in 1,4-dioxane T=80°C; 15 h; Inert atmosphere;

1: sodium 2,4,5-trimethoxybenzoate With palladium (II) trifluoroacetate in dimethyl sulfoxide T=80°C; 0.5 h; Inert atmosphere; 2: N-acetylindole With dimethyl sulfoxide; propionic acid in 1,4-dioxane T=80°C; 15 h; Inert atmosphere;