2-Pyridin-2-yl-1H-benzoimidazole L3 是一种新型、高效、多功能的双齿 N 供体配体,适用于铜催化形成乙烯基 CN 和 CO 键。这种廉价且易于制备的配体促进了铜催化的烯基溴化物和碘化物与N-杂环和酚的交叉偶联反应,以良好至极好的收率提供所需的交叉偶联产物,并完全保留立体化学。这种方法特别值得注意,因为它的效率,即温和的反应条件、低催化剂负载、简单、多功能和优异的官能团耐受性。
The present invention provides a compound of Formula I, II or III or a salt or prodrug or derivative thereof that is useful for skin-whitening by inhibiting melanin formation and removing existing melanin and the inhibition of melanoma growth and/or the removal of existing melanoma cells.
The present invention provides a compound of Formula I, II or III or a salt or prodrug or derivative thereof that is useful for skin-whitening by inhibiting melanin formation and removing existing melanin and the inhibition of melanoma growth and/or the removal of existing melanoma cells.
本发明提供了一种式 I、II 或 III 的化合物或其盐或原药或衍生物,通过抑制黑色素形成和清除现有黑色素以及抑制黑色素瘤生长和/或清除现有黑色素瘤细胞,可用于美白皮肤。