Total synthesis of LL-Z1640-2 utilizing a late-stage intramolecular Nozaki–Hiyama–Kishi reaction
摘要:
A total synthesis of LL-Z1640-2 (2), a potent and selective kinase inhibitor, has been completed. The key step of the convergent synthesis utilized a late-stage intramolecular Nozaki-Hiyama-Kishi (NHK) reaction to close the macrocycle at the C6'-C7' bond. Published by Elsevier Ltd.
Total synthesis of LL-Z1640-2 utilizing a late-stage intramolecular Nozaki–Hiyama–Kishi reaction
摘要:
A total synthesis of LL-Z1640-2 (2), a potent and selective kinase inhibitor, has been completed. The key step of the convergent synthesis utilized a late-stage intramolecular Nozaki-Hiyama-Kishi (NHK) reaction to close the macrocycle at the C6'-C7' bond. Published by Elsevier Ltd.
Convergent Total Synthesis of Paecilomycin B and 6′-<i>epi</i>-Paecilomycin B by a Barbier-Type Reaction Using 2,4,6-Triisopropylphenyllithium
作者:Kiyomi Ohba、Masaya Nakata
DOI:10.1021/acs.joc.7b03041
日期:2018.7.6
The convergent total synthesis of the natural product paecilomycin B and its 6′-epimer was investigated. The aryl-C-glycoside skeleton was constructed by an intramolecular Barbier-type reactionusing 2,4,6-triisopropylphenyllithium and subsequent deoxygenation of the resulting anomeric hydroxy group. Starting from aryl iodide 24, the addition reaction afforded the thermodynamically stable C-β macrocyclic