Stereochemical Definition and Chirospecific Synthesis of the Peptide Deformylase Inhibitor Sch 382583
作者:Reed A. Coats、Sheng-Lian Lee、Kari A. Davis、Kanu M. Patel、Elaine K. Rhoads、Michael H. Howard
DOI:10.1021/jo035667t
日期:2004.3.1
The recently reported natural product Sch 382583 (1), an inhibitor of peptide deformylase, has been synthesized in 16 steps from commercially available starting materials. The three chiral centers were set by a combination of chiral auxiliary and chiral pool approaches. The succinate 5 and piperazic acid 9 moieties were obtained by Evans oxazolidinone imide enolate alkylation and hydrazination/cyclization
最近报道的天然产物Sch 382583(1),一种肽去甲酰基酶的抑制剂,已由市售起始原料分16步合成。三个手性中心是通过手性辅助方法和手性池方法的组合设置的。分别通过伊文思恶唑烷酮酰亚胺烯酸酯烷基化和酰化/环化获得琥珀酸酯5和哌嗪酸9部分,并且通过格氏(Grignard)取代衍生自I的Weinreb酰胺制备氨基己酮侧链13。-缬氨酸。与所报告的天然产物的数据相比,所得合成材料的光谱数据确定了先前未分配的缬氨酸酮立体中心(C-4)具有S-构型。