Efficient synthesis and biological activity of enantiomeric pairs of thiolactomycin and its 3-demethyl derivative
作者:Kohei Ohata、Shiro Terashima
DOI:10.1016/j.tet.2009.01.054
日期:2009.3
The title total synthesis was achieved by employing deconjugative asymmetric α-sulfenylation of the chiral 3-(α,β,γ,δ-unsaturated acyl)oxazolidin-2-one with a 3,3-dimethoxypropyl methanethiosulfonate as a key step. From the biological activity assay carried out using the title compounds, it appeared evident that in vitro antibacterial and mammalian type I FAS inhibitory activity can be cleanly separated
通过使用手性3-(α,β,γ,δ-不饱和酰基)恶唑烷-2-酮与3,3-二甲氧基丙基甲硫代磺酸盐的键合不对称α-亚磺酰基化作为关键步骤来实现标题的总合成。从使用标题化合物进行的生物学活性测定中,似乎表明,不仅通过改变C 3位的取代基,而且通过改变C的绝对构型,可以清楚地分离体外的抗菌和哺乳动物I型FAS抑制活性。5位,并且非天然的(S)-(-)-3-脱甲基硫基催乳素及其同源物可以用作选择性的哺乳动物I型FAS抑制剂。