A General and Facile Synthetic Approach to Nα-Boc Ureidoalanine Derivatives - Teng, Hanbing; He, Yunjiao; Wu, Lamei; Su, Jiangtao; Feng, Xichun; Qiu, Guofu; Liang, Shucai; Hu, Xianming (Synlett, 2006)