General Strategies toward the Syntheses of Macrolide Antibiotics. The Total Syntheses of 6-Deoxyerythronolide B and Oleandolide
作者:David A. Evans、Annette S. Kim、Rainer Metternich、Vance J. Novack
DOI:10.1021/ja9806128
日期:1998.6.1
The asymmetric syntheses of 6-deoxyerythronolide B (1) and oleandolide (2) have been achieved, each in 18 linear steps. These syntheses demonstrate the utility of chiral β-keto imide building block 3 as a versatile building block for the aldol-based assemblage of polypropionate-derived natural products.
2‐Iodoxybenzoic Acid Tosylates: the Alternative to Dess–Martin Periodinane Oxidizing Reagents
作者:Mekhman S. Yusubov、Pavel S. Postnikov、Roza Ya. Yusubova、Akira Yoshimura、Gerrit Jürjens、Andreas Kirschning、Viktor V. Zhdankin
DOI:10.1002/adsc.201700776
日期:2017.9.18
Two powerful hypervalent iodine(V) oxidants, DMP‐OTs (1‐tosyloxy‐1,1‐diacetoxy‐1H‐1λ5‐benzo[d][1,2]iodoxol‐3‐one) and IBX‐OTs (1‐tosyloxy‐1‐oxo‐1H‐1λ5‐benzo[d][1,2]iodoxol‐3‐one) show high reactivity in the oxidation of structurally complex primary and secondary alcohols, which are highly functionalized polyketide or terpene fragments or steroids. The yields of the corresponding carbonyl compounds
Enantioselective Synthesis of the Macrolide Antibiotic Oleandomycin Aglycon
作者:David A. Evans、Annette S. Kim
DOI:10.1021/ja963002l
日期:1996.11.13
challenge for stereoselectivesynthesis, and these target structures have provided the stimulus for the development of a host of new enantioand diastereoselective bond constructions.1 In this paper we illustrate, in the context of an efficient synthesis of oleandolide aglycon (1),2 how polypropionate chains may be rapidly assembled using the chiral â-ketoimide building block 2 and its associated aldol