1: 850 °C / 0 Torr 2: HCl View Scheme

1: 2-(dimethylamino)-4H-pyridolt;1,2-agt;pyrimidin-4-one T=850°C; Ring cleavage; P=6E-05 Torr; 4 h; 2: dimethyl amine in diethyl ether; dichloromethane Addition;

1: 2-(dimethylamino)-4H-pyridolt;1,2-agt;pyrimidin-4-one T=850°C; Ring cleavage; P=6E-05 Torr; 4 h; 2: methanol Addition;

1: 2-(dimethylamino)-4H-pyridolt;1,2-agt;pyrimidin-4-one T=850°C; Ring cleavage; P=6E-05 Torr; 4 h; 2: diethylamine in dichloromethane Addition; Title compound not separated from byproducts;