PT Journal AU Hassan, AA Mohamed, NK Abd El-Haleem, LE Bräse, S Nieger, M TI Synthesis of new Furo-imidazo[3.3.3]propellanes SO Current Organic Synthesis PY 2016 BP 426 EP 431 VL 13 IS 3 DI 10.2174/1570179412666150513003813 LA english ER