Propene as an Atom-Economical Linchpin for Concise Total Synthesis of Polyenes: Piericidin A
作者:Barry M. Trost、Hadi Gholami
DOI:10.1021/jacs.8b08974
日期:2018.9.19
properly elaborated alkyne fragments, leading to the 1,3,6-triene motif of piericidin A. Utilization of propene as a unique alkene, capable of sequentialcoupling with two alkynes, is further illustrated in the context of various 1,3,6-triene products. The latter process proceeds with high atom economy and efficiently gives rise to complex frameworks from readily accessible alkyne substrates. This strategic
公开了一种简洁且收敛的哌啶 A 全合成。合成取决于利用丙烯作为合成关键来合并适当精心设计的炔烃片段,从而产生 piericidin A 的 1,3,6-三烯基序。 将丙烯用作独特的烯烃,能够与两个炔烃顺序偶联,在各种 1,3,6-三烯产品的上下文中进一步说明。后一个过程以高原子经济性进行,并从容易获得的炔烃底物有效地产生复杂的框架。这种战略性的 CC 键形成为合成路线的设计提供了正交范式,从而实现更高的步骤经济性和更有效的多不饱和天然产物的合成。
A Convenient Access to Novel Amino-Hydroxy-Methyl Stereotriads Containing an E-Trisubstituted Vinyl Iodide Unit
protocol: a Marshall reaction of the α-amino aldehyde with a chiral propargylic mesylate, a silylcupration of the corresponding homopropargylic alcohol and an iododesilylation reaction of the resulting vinylsilane. This sequence delivered the expected compounds as their oxazolidinone derivatives, providing a convenient diastereoselectiveaccess to useful building blocks for polypropionate synthesis and
A Pentenyl Dianion-Based Strategy for Convergent Synthesis of Ene-1,5-diols
作者:Adilah B. Bahadoor、Alec Flyer、Glenn C. Micalizio
DOI:10.1021/ja050039+
日期:2005.3.1
A convergent two-step process is described for the synthesis of ene-1,5-diols that provides for union of two carbonyl electrophiles via a formal pentenyl dianion equivalent.
Polyketide Assembly by Alkene−Alkyne Reductive Cross-Coupling: Spiroketals through the Union of Homoallylic Alcohols
作者:Daniel P. Canterbury、Glenn C. Micalizio
DOI:10.1021/ja102888f
日期:2010.6.9
reaction sequence composed of regioselective formal hydroalkynylation, reductive ene-yne cross-coupling, and oxidative cyclization has been developed to prepare stereochemically dense spiroketals. Overall, the chemistry defines a three-component coupling process for the union of two homoallylic alcohol-based substrates with trimethylsilylacetylene.
SYNTHESIS OF HDAC INHIBITORS: TRICHOSTATIN A AND ANALOGUES
申请人:Helquist Paul
公开号:US20110237832A1
公开(公告)日:2011-09-29
Embodiments herein relate to histone deacetylaces (HDACs) and HDAC inhibitors, such as trichostatin A (TSA) and TSA analogues. Embodiments provide simple methods of synthesizing TSA and TSA analogues. These methods provide routes of synthesis of TSA and TSA analogues that enable the production of the HDAC inhibitors at lower cost and in greater quantities than previously were available.