、
3,3-dibromo-1-(diphenylmethyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one 、
3,3-dibromo-1-(diphenylmethyl)-1,3-dihydro-2H-pyrrolo[3,2-b]pyridin-2-one 以1-(diphenylmethyl)-1H-pyrrolo[2,3-b]pyridine-2,3-dione (41%) was obtained as a yellow solid的产率得到1-(diphenylmethyl)-1H-pyrrolo[2,3-b]pyridine-2,3-dione