Synthesis of Unnatural Amino Acids via Suzuki Cross-Coupling of Enantiopure Vinyloxazolidine Derivatives
作者:Mark Sabat、Carl R. Johnson
DOI:10.1021/ol005645i
日期:2000.4.1
S)-alpha-Amino alcohols and alpha-amino acids, including 4-methoxyhomophenylalanine, with a variety of unnatural side chains have been synthesized via palladium-catalyzed cross-coupling Suzuki reactions. The key building blocks 1 and 2, synthesized from the common achiral precursor 2-butene-1,4-diol, were made enantiopure utilizing a Pseudomonas cepacia lipase-catalyzed kinetic resolution. The optimal
通过钯催化的交叉偶联Suzuki反应合成了(R和S)-α-氨基醇和α-氨基酸,包括4-甲氧基高苯丙氨酸,并带有各种非天然的侧链。由常见的非手性前体2-丁烯-1,4-二醇合成的关键结构单元1和2,利用假单胞菌洋葱脂肪酶催化的动力学拆分,制成对映体纯净的。描述了铃木交叉偶联和随后氧化所得α-氨基醇的最佳条件。