Novel enantioselective synthesis of penaresidin A and Allo-penaresidin A via the construction of a highly functionalized azetidine
摘要:
A new and highly enantioselective synthesis of penaresidin A has been achieved via the construction of a highly functionalized azetidine with the requisite stereogenic centers, which can also be regarded as an advanced intermediate for the synthesis of penaresidin B and penazetidine A. (C) 1998 Elsevier Science Ltd. All rights reserved.
Stereoselective total synthesis of penaresidin A starting from d-galactal
作者:B.V. Subba Reddy、Ch. Kishore、A. Srinivas Reddy
DOI:10.1016/j.tetlet.2013.10.095
日期:2014.1
A stereoselective total synthesis of penaresidin A has been accomplished involving Sharpless asymmetric epoxidation, regioselective ring-opening of epoxide, azetidine formation via SN2 reaction, Jung’s protocol, and Julia–Kocienski olefination. This approach has successfully demonstrated the synthetic utility of d-galactal in the construction of azetidine core of the natural product.
已经完成了Penaresidin A的立体选择性全合成,涉及Sharpless不对称环氧化,环氧化物的区域选择性开环,通过S N 2反应形成氮杂环丁烷,Jung方案和Julia - Kocienski烯烃化反应。该方法已经成功地证明了d-半乳糖在天然产物氮杂环丁烷核的构建中的合成效用。