2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-1,2,2-trimethyl-propyl)-amide

2-(5-ethylcarbamoyl-thiophen-2-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-1,2,2-trimethyl-propyl)-amide

2-(5-ethylcarbamoyl-thiophen-2-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((S)-1,2,2-trimethyl-propyl)-amide