Marcotte, Stéphane; D'Hooge, François; Ramadas, Sathunuru; Feasson, Christian; Pannecoucke, Xavier; Quirion, Jean-Charles Tetrahedron Letters, 2001, vol. 42, # 34 p. 5879 - 5882 doi: 10.1016/S0040-4039(01)01144-3