Regiospecific synthesis of cepanolide, a cancer chemoprotective micronutrient found in green onions
摘要:
The naturally occurring gamma-hydroxy-beta-sulfanylbutenolide cepanolide and a range of new analogues were synthesized in concise, regiospecific manner through the combined use of 2-silyloxyfuran oxyfunctionalization and tandem thio-Michael addition/elimination. (C) 2012 Elsevier Ltd. All rights reserved.
Regiospecific synthesis of cepanolide, a cancer chemoprotective micronutrient found in green onions
摘要:
The naturally occurring gamma-hydroxy-beta-sulfanylbutenolide cepanolide and a range of new analogues were synthesized in concise, regiospecific manner through the combined use of 2-silyloxyfuran oxyfunctionalization and tandem thio-Michael addition/elimination. (C) 2012 Elsevier Ltd. All rights reserved.
Asymmetric synthesis of a versatile 1,2,3-trisubstituted cyclopentane synthetic building block
作者:Taehwan Hwang、John L. Wood
DOI:10.1016/j.tet.2023.133384
日期:2023.5
Described herein is an asymmetricsynthesis of a functionalized 1,2,3-trisubstituted cyclopentane buildingblock, derivatives of which are commonly found in numerous natural products. Key steps include a Lewis acid-mediated cyclobutane ring opening, a diastereoselective chlorination, and a Favorskii rearrangement.