Andrus, Merritt B.; Meredith, Erik L.; Simmons, Bryon L.; Sekhar, B. B. V. Soma; Hicken, Erik J. Organic Letters, 2002 , vol. 4, # 20 p. 3549 - 3552 Andrus, Merritt B.; Meredith, Erik L.; Hicken, Erik J.; Simmons, Bryon L.; Glancey, Russell R.; Ma, Wei Journal of Organic Chemistry, 2003 , vol. 68, # 21 p. 8162 - 8169