The first synthesis of cribrostatin 6 (1), a dark blue cancer cell growth inhibiter was achieved in ten-steps from 2,4-diethoxy-3-methylphenol (8), utilizing a catalytic hydrogenation which induces an intramolecular transfer reaction.
New Insights into Cyclobutenone Rearrangements: A Total Synthesis of the Natural ROS-Generating Anti-Cancer Agent Cribrostatin 6
作者:Mubina Mohamed、Théo P. Gonçalves、Richard J. Whitby、Helen F. Sneddon、David C. Harrowven
DOI:10.1002/chem.201102263
日期:2011.12.2
Aryl‐ and heteroarylcyclobutenone rearrangements proceed in excellent yield under continuous‐flow conditions. The former shows a Hammett correlation with σI providing strong evidence that electrocyclisation is the rate‐determining step and has a late transition state. The reaction has been modelled by using DFT and CCSD(T) methods, with the latter giving excellent correlation with the experimental
Cribrostatin 6, a dark blue cancer cell growth inhibiting constituent of the Republic of Maldives marine sponge Cribrochalina sp. has been isolated, and its structure (shown below) elucidated, based on a combination of RMS, high field (500 MHz, HMBC, and GOESY experiments) 15N,
1
H- and 13C NMR, and X-ray crystal structure analyses. Cribrostatin 6 also was found to inhibit the growth of a number of pathogenic bacteria and fungi.
Knueppel, Daniel; Martin, Stephen F., Angewandte Chemie - International Edition, 2009, vol. 48, p. 2569 - 2571
作者:Knueppel, Daniel、Martin, Stephen F.
DOI:——
日期:——
Synthesis of Cribrostatin 6 and Its Related Compounds
作者:Shinsuke Nakahara、Akinori Kubo、Yuzuru Mikami、Junji Ito
DOI:10.3987/com-06-10674
日期:——
The synthesis of cribrostatin 6 (1), which shows good biological activity as a dark blue cancer cells growth inhibitor and a number of pathogenic bacteria and fungi, was achieved in two steps from 1-acetylaminomethyl-5,7-diethoxy-8-hydroxy-6-methylisoquinoline (14). The related compounds (8 similar to 11) were also synthesized, and the antimicrobial activities of 1 and its nine related compounds (5 similar to 13) were investigated.
PROOXIDANT CANCER CHEMO-SUPPRESSORS AND CHEMO-PROTECTORS AND METHODS OF USE RELATED THERETO
申请人:Howes Randolph M
公开号:US20190275119A1
公开(公告)日:2019-09-12
Formulation(s) of prooxidation agents and/or antioxidant capacity reducing agents for producing electronically modified oxygen derivatives (“EMODs”) for cancer chemo-suppression and chemo-protection, and kit(s) and method(s) of use thereof.