A New and Flexible Synthesis of 4-Hydroxypyridines: Rapid Access to Caerulomycins A, E and Functionalized Terpyridines
作者:Jyotirmayee Dash、Hans-Ulrich Reissig
DOI:10.1002/chem.200900939
日期:2009.7.13
ammonia, and carboxylic acids are the precursors for the efficient synthesis of 4‐hydroxypyridines and the corresponding nonaflate derivatives. This provides simple and practical access to a variety of highly substituted pyridine derivatives, including antibiotic natural products such as caerulomycins A, E and functionalized terpyridines (see scheme).
简单但未知:1,3-二酮,
氨和
羧酸是有效合成4-
羟基吡啶和相应的
壬酸酯衍
生物的前体。这为获得各种高度取代的
吡啶衍生物(包括抗生素
天然产物,如
铜霉素A,E和功能化的
吡啶)提供了简单而实用的途径(请参阅方案)。