1 P9I 1-[1-(pyridin-2-yl)indolizin-3-yl]ethan-1-one 1.000 2 OF8 1-(8-pyridin-2-ylpyrrolo[1,2-a]pyrimidin-6-yl)ethanone 0.895 3 1FK 1-[7-amino-1-(pyrimidin-2-yl)indolizin-3-yl]ethanone 0.850 4 OFK 1-(8-phenylpyrrolo[1,2-a]pyrimidin-6-yl)ethanone 0.800 5 IR4 1-[7-(morpholin-4-yl)-1-(pyridin-2-yl)indolizin-3-yl]ethanone 0.750 6 A1EF0 1-[1-(3,5-dimethoxyphenyl)indolizin-3-yl]ethanone 0.739