Efficient chemoenzymatic synthesis of (S)- and (R)-5-(1-Aminoethyl)-2-(cyclohexylmethoxy)benzamide: key intermediate for Src-SH2 inhibitor
作者:Ahmed Kamal、Mahendra Sandbhor
DOI:10.1016/s0960-894x(02)00256-1
日期:2002.7
A facile chemoenzymatic synthesis of both the S and R forms of 5-(1-aminoethyl)-2-(cyclohexylmethoxy)benzamide a key intermediate of non-peptidic Src SH2 inhibitors is described. Both the enantiomers were synthesized in high optical purity (>99% ee) by reduction followed by lipase-mediated acylation of the precursor 6 in one-pot. Immobilized Pseudomonas cepacia lipase offered high degree of enantioselectivity
描述了非肽Src SH2抑制剂的关键中间体5-(1-氨基乙基)-2-(环己基甲氧基)苯甲酰胺的S和R形式的简便化学合成。两种对映异构体均通过还原,然后在一锅中通过脂肪酶介导的前体6的酰化反应,以高光学纯度(> 99%ee)合成。固定化的洋葱假单胞菌脂肪酶具有高度的对映选择性和自发性。