3,6-DIHYDRO-4-METHYL-3-(METHYL-7H-PYRROLO(2,3-D)PYRIMIDIN-4-YLAMINO)-.BETA.-OXO-1(2H)-PYRIDINEPROPANENITRILE
3,6-dihydro-4-methyl-3-(methyl-7h-pyrrolo(2,3-d)pyrimidin-4-ylamino)-.beta.-oxo-1(2h)-pyridinepropanenitrile