[2-(Trimethylsilyl)ethoxy]methyl} (SEM)-protected pederic acid 16 was prepared by deriving the stereogenic center at C(7) from mannitol and those at C(2) and C(3) (mycalamide numbering) from trans-2,3-dimethyloxirane. Routes to pederamides involving a late oxygenation at C(7) were explored.
[2-(三甲基甲
硅烷基)乙氧基]甲基}(
SEM)保护的山er酸16是通过从
甘露醇衍生C(7)和C(2)和C(3)(mycalamide编号)的立体异构中心制备的
反式-2,3-二甲基环氧乙烷。探索了涉及在C(7)的后期氧合的pederamides的途径。