TERT-BUTYL 2'-CHLORO-6'-OXO-6'H-SPIRO(CYCLOHEXANE-1,9'-PYRAZINO(1',2':1,5)PYRROLO(2,3-D)PYRIMIDINE)-7'(8'H)-CARBOXYLATE
tert-butyl 2'-chloro-6'-oxo-6'h-spiro(cyclohexane-1,9'-pyrazino(1',2':1,5)pyrrolo(2,3-d)pyrimidine)-7'(8'h)-carboxylate