Synthetic Applications of Sulfur-Substituted Indolizidines and Quinolizidines
摘要:
Starting from the sulfur-substituted indolizidines and quinolizidines, a few useful synthetic transformations have been developed and the synthesis of some natural products including indolizidine 209D, epimyrtine, lasubine II, 8a-epi-dendroprimine, and 5-epi-cermizine C has been accomplished.
Total Synthesis of (−)-Senepodine G and (−)-Cermizine C
作者:Barry B. Snider、James F. Grabowski
DOI:10.1021/jo062067w
日期:2007.2.1
An efficient, stereospecific synthesis of the alkaloids senepodine G (2 and cermizine C (1) has been completed using the BF3 center dot Et2O-promoted stereospecific addition of Me2CuLi to alpha,beta-unsaturated lactam 6 to provide lactam 3 the addition of MeMgBr followed by HCl to convert 3 to senepodine G (2) (six steps, 40% overall yield), and the stereospecific NaBH4 reduction of 2 to give cermizine C (1) (seven steps, 40% overall yield).
Synthetic Applications of Sulfur-Substituted Indolizidines and Quinolizidines
作者:Shang-Shing P. Chou、Yi-Ching Chung、Po-An Chen、Shan-Lun Chiang、Chien-Jung Wu
DOI:10.1021/jo102092b
日期:2011.1.21
Starting from the sulfur-substituted indolizidines and quinolizidines, a few useful synthetic transformations have been developed and the synthesis of some natural products including indolizidine 209D, epimyrtine, lasubine II, 8a-epi-dendroprimine, and 5-epi-cermizine C has been accomplished.