Hanessian, Stephen; Huynh, Hoan K; Reddy, Gurijala V; Duthaler, Rudolph O; Katopodis, Andreas; Streiff, Markus B; Kinzy, Willy; Oehrlein, Reinhold Tetrahedron, 2001, vol. 57, # 16 p. 3281 - 3290 doi: 10.1016/S0040-4020(01)00195-8