Stereochemical Elucidation and Total Synthesis of Dihydropacidamycin D, a Semisynthetic Pacidamycin
作者:Constantine G. Boojamra、Rémy C. Lemoine、Julie C. Lee、Roger Léger、Karin A. Stein、Nicole G. Vernier、Angela Magon、Olga Lomovskaya、Patrick K. Martin、Suzanne Chamberland、May D. Lee、Scott J. Hecker、Ving J. Lee
DOI:10.1021/ja003292c
日期:2001.2.1
that of the natural products. Elucidation of stereochemistry in the pacidamycins has been completed through a campaign of natural product degradation experiments in combination with the total synthesis of the lowest-molecular weight dihydropacidamycin, dihydropacidamycin D. The stereochemical identities of the tryptophan and two alanine residues contained in pacidamycin D have been shown to be of the
已显示太平洋霉素的 C(4') 环外烯烃的氢化作用产生一系列半合成化合物,即二氢太平洋霉素,其抗菌活性类似于天然产物。通过天然产物降解实验以及最低分子量二氢太平洋霉素 D 的全合成,已经完成了太平洋霉素中立体化学的阐明。 太平洋霉素 D 中包含的色氨酸和两个丙氨酸残基的立体化学身份已经确定显示为天然 (S) 构型,而该系列抗生素中所含的独特 3-甲基氨基-2-氨基丁酸已显示为 (2S,3S) 构型。最后,通过氢化 C(4')-C(5'