作者:Ming Chen、William R. Roush
DOI:10.1021/ol203161u
日期:2012.1.6
Tirandamycin C is a newly isolated member of the tetramic acid family natural products. We described herein the first enantioselective synthesis of natural (−)-tirandamycin C, the postulated biosynthetic precursor of other members of this family. The highly stereoselective (>15:1) mismatched double asymmetric γ-stannylcrotylboration reaction of aldehyde 8 with crotylborane reagent (R)-E-9 was utilized
Tirandamycin C 是特特拉姆酸家族天然产物中新分离的成员。我们在此描述了天然 (-)-提兰霉素 C 的第一个对映选择性合成,它是该家族其他成员的假定生物合成前体。利用醛8与巴豆基硼烷试剂( R )-E - 9的高度立体选择性(>15:1)错配双不对称γ-甲锡烷基巴豆基硼化反应获得关键的抗、反立体三联体18。