Synthesis of a C4-epi-C1−C6 Fragment of FR901464 Using a Novel Bromolactolization
摘要:
A synthesis of a C4-epi-C1-C6 fragment of the antitumor agent FR901464 is reported. The advanced intermediate prepared in this study contains two of the three correct stereocenters found in the C1-C6 moiety of FR901464. For the preparation of this intermediate, we have developed a highly diastereoselective bromolactolization of a delta-alkenyl ketone.
Synthesis of a C4-epi-C1−C6 Fragment of FR901464 Using a Novel Bromolactolization
摘要:
A synthesis of a C4-epi-C1-C6 fragment of the antitumor agent FR901464 is reported. The advanced intermediate prepared in this study contains two of the three correct stereocenters found in the C1-C6 moiety of FR901464. For the preparation of this intermediate, we have developed a highly diastereoselective bromolactolization of a delta-alkenyl ketone.
Total Syntheses, Fragmentation Studies, and Antitumor/Antiproliferative Activities of FR901464 and Its Low Picomolar Analogue
作者:Brian J. Albert、Ananthapadmanabhan Sivaramakrishnan、Tadaatsu Naka、Nancy L. Czaicki、Kazunori Koide
DOI:10.1021/ja067870m
日期:2007.3.1
natural product that lowers the mRNA levels of oncogenes and tumor suppressor genes. In this article, we report a convergent enantioselectivesynthesis of FR901464, which was accomplished in 13 linear steps. Central to the synthetic approach was the diene-ene cross olefin metathesis reaction to generate the C6-C7 olefin without the use of protecting groups as the final step. Additional key reactions include
Synthesis of a C4-<i>e</i><i>pi</i>-C1−C6 Fragment of FR901464 Using a Novel Bromolactolization
作者:Brian J. Albert、Kazunori Koide
DOI:10.1021/ol049160w
日期:2004.10.1
A synthesis of a C4-epi-C1-C6 fragment of the antitumor agent FR901464 is reported. The advanced intermediate prepared in this study contains two of the three correct stereocenters found in the C1-C6 moiety of FR901464. For the preparation of this intermediate, we have developed a highly diastereoselective bromolactolization of a delta-alkenyl ketone.