作者:Mariusz J. Bosiak、Marek P. Krzemiński、Parasuraman Jaisankar、Marek Zaidlewicz
DOI:10.1016/j.tetasy.2008.03.026
日期:2008.5
The asymmetric synthesis of two 5-lipoxygenase inhibitors (R)-N-1-(benzofuran-2-yl)ethyl-N-hydroxyurea, 99% ee, and (R)-N-1-(benzo[b]thiophen-2-yl)ethyl-N-hydroxyurea, 95% ee, is described. The enantioselective reduction of 1-(benzofuran-2-yl)ethanone oxime O-benzyl ether and 1-(benzo[b]thiophen-2-yl)ethanone oxime O-benzyl ether with borane oxazaborolidine, generated from (1R,2S,3R,4S)-3-amino-1,7
两种5-脂氧合酶抑制剂(R)-N -1-(苯并呋喃-2-基)乙基-N-羟基脲,99%ee和(R)-N -1-(苯并[ b ]噻吩-描述了95%ee的2-基)乙基-N-羟基脲。用(1 R,2)生成的硼烷恶唑硼烷将对(1-苯并呋喃-2-基)乙酮肟O-苄基醚和1-(苯并[ b ]噻吩-2-基)乙酮肟O-苄基醚进行对映选择性还原硫,3 R,4 S)-3-氨基-1,7,7-三甲基双环[2.2.1]庚-2-醇被用于形成立体异构中心。