Synthesis of 2-Fluoro- and 6-Fluoro-(2<i>S</i>,3<i>R</i>)-(3,4-dihydroxyphenyl)serine as Potential in Vivo Precursors of Fluorinated Norepinephrines
作者:Brian Herbert、In Ho Kim、Kenneth L. Kirk
DOI:10.1021/jo010327y
日期:2001.7.1
and 4,5-dibenzyloxy-2-fluorobenzaldehyde with the oxazolidinone 2, a chiral glycine equivalent. Removal of the chiral auxiliary and blocking groups produced the target amino acids 2-fluoro- and 6-fluoro-(2S,3R)-(3,4-dihydroxyphenyl)serine (1b and 1c) in >98% ee.
通过3,4-二苄氧基-2-氟苯甲醛和4,5-二苄氧基-2-氟苯甲醛与恶唑烷酮2(手性甘氨酸等效物)的醛醇缩合制备标题化合物。除去手性辅助基团和保护基团产生目标氨基酸2-氟-和6-氟-(2S,3R)-(3,4-二羟基苯基)丝氨酸(1b和1c),ee> 98%。