Strategies, Setbacks, and Successes in the Synthesis of (−)-Spiroleucettadine
作者:Richard A. Lamb、Nigel T. Lucas、Guillaume Lessene、Bill C. Hawkins
DOI:10.1021/acs.joc.8b01404
日期:2018.9.7
Various strategies toward the synthesis of the marine natural product (−)-spiroleucettadine are described. In the original strategy, a biomimetic inspired oxidation of a 2-imidazoline scaffold uncovered unexpected reactivity, where benzylic oxidation followed by a Baeyer–Villiger reaction was observed. The second generation approach examined oxidative dearomatization of the phenol ring system first
Synthesis and Biological Evaluation of (−) and (+)‐Spiroleucettadine and Analogues
作者:Michael P. Badart、Emma M. Barnes、Andrew P. Cording、Selena C. L. Gilmer、Ian D. Billinghurst、Veera V. Shivaji R. Edupuganti、Guillaume Lessene、Abigail R. Bland、Rebekah L. Bower、Zohaib Rana、Scott A. Ferguson、Helen K. Opel Reading、Gregory M. Cook、Rhonda J. Rosengren、Kurt L. Krause、Allan B. Gamble、John C. Ashton、Bill C. Hawkins
DOI:10.1002/cmdc.202000954
日期:2021.4.20
A second‐generation enantiospecific synthesis of spiroleucettadine is described. The original reported antibacterial activity was not observed when the experiment was repeated on the synthetic samples; however, significant anti‐proliferative activity was uncovered for both enantiomers of spiroleucettadine. Comparison of the optical rotational data and ORD‐CD spectra of both enantiomers and the reported
The present invention relates to new spirocyclic compounds that may be useful in as anti- cancer and anti-microbial agents, to the preparation of the compounds, and to compositions including the compounds. The present invention also relates to the use of the compounds, as well as compositions including the compounds, in treating or preventing cancer, and treating or preventing microbial infections.