Efficient One-pot Three-component Synthesis of 7-Oxo-1,7,8,8a-tetrahydroimidazo[1,2-a]pyrimidines - Adib, Mehdi; Mollahosseini, Mehdi; Yavari, Hossine; Sayahi, Mohammad Hosein; Bijanzadeh, Hamid Reza (Synlett, 2004)