1 933 2-cyclopropyl-N-[(2s)-3,3-dimethylbutan-2-yl]-5h-pyrrolo[2,3-B]pyrazine-7-carboxamide 1.000 2 19Q 2-cyclopropyl-N-[(2s)-3-hydroxy-3-methylbutan-2-yl]-5h-pyrrolo[2,3-B]pyrazine-7-carboxamide 0.909 3 19R 2-cyclopropyl-N-[(2r)-3-hydroxy-3-methylbutan-2-yl]-5h-pyrrolo[2,3-B]pyrazine-7-carboxamide 0.909