1 XXK 3-amino-5-[4-(morpholin-4-yl)pyrido[3',2':4,5]furo[3,2-D]pyrimidin-2-yl]phenol 1.000 2 X6K 3-(4-morpholin-4-ylpyrido[3',2':4,5]furo[3,2-D]pyrimidin-2-yl)phenol 0.963 3 84R 3-azanyl-5-(4-morpholin-4-ylthieno[3,2-D]pyrimidin-2-yl)phenol 0.786 4 AJZ 3-(4-morpholin-4-ylthieno[3,2-D]pyrimidin-2-yl)phenol 0.750 5 36I 4-(2-phenylthieno[3,2-D]pyrimidin-4-yl)morpholine 0.714