Lee, Kee-Young; Oh, Chang-Young; Ham, Won-HunLee, Kee-Young; Oh, Chang-Young; Kim, Yong-Hyun; Joo, Jae-Eun; Ham, Won-Hun Organic lettersTetrahedron Letters, 20022002, vol. 443, # 2551 p. 4403 - 44059361 - 9363 doi: 10.1016/S0040-4039(02)02371-7