selectively the corresponding (S)-homoallylic alcohols. These compounds can be easily transformed into hydroxyethylene dipeptide isosteres through elaboration of the allylic chloride part of the molecule. The preparation of Ileψ[CH(OH)CH2]Glu and of Ileψ[CH(OH)CH2]Ala (in a protected form) is described.
2-
氯甲基-3-三甲基甲
硅烷基-
1-丙烯在BF 3 OEt 2存在下与N-Boc
氨基醛反应,选择性地生成相应的(S)-均烯丙基醇。通过阐述分子的烯丙基
氯化物部分,可以容易地将这些化合物转化为羟
乙烯二肽等排体。描述了Ileψ[CH(OH)CH 2 ] Glu和Ileψ[CH(OH)CH 2 ] Ala(处于保护形式)的制备。