Journal of the American Chemical Society, , vol. 77, p. 4834,4837

Aquino, Maurizio; Guerrero, Maria D.; Bruno, Ines; Terencio, Maria C.; Paya, Miguel; Riccio, Raffaele
Bioorganic and Medicinal Chemistry, 2008 , vol. 16, # 19 p. 9056 - 9064

Huegel, Helmut M.; Rix, Colin J.; Fleck, Karin
Synlett, 2006 , # 14 p. 2290 - 2292