作者:Xiang-Guo Li、Liisa T. Kanerva
DOI:10.1021/ol0623163
日期:2006.11.1
lipase-catalyzed reactions where N-acetylated beta-amino esters were first activated as 2,2,2-trifluoroethyl esters with Candida antarctica lipase B (CAL-B). The activated esters were then used to acylate beta-amino ester in the presence of Candida antarctica lipase A (CAL-A) in dry Et2O or i-Pr2O. [reaction: see text].
通过两步脂肪酶催化反应制备了许多β-二肽,其中首先将N-乙酰化的β-氨基酯与南极假丝酵母脂肪酶B(CAL-B)活化为2,2,2-三氟乙基酯。然后,在干燥的Et2O或i-Pr2O中,在南极假丝酵母脂肪酶A(CAL-A)存在的情况下,将活化的酯用于酰化β-氨基酯。[反应:请参见文字]。