Synthesis of 6-substituted tetrahydropyridinones and cyclization to indolizidine and quinolizidine structures
作者:Shang-Shing P. Chou、Hao-Chieh Chiu、Chia-Cheng Hung
DOI:10.1016/s0040-4039(03)01096-7
日期:2003.6
3-Sulfolenes 1 with various substituents at C-2 underwent [4+2] cycloaddition reactions with p-toluenesulfonyl isocyanate to give the teterahydropyridinones 4. Through N-detosylation and Hg(II)-mediated electrophilic addition/intramolecular cyclization of 4e and 4f, the indolizidine and quinolizidine compounds 7a/7b and 8 were synthesized, respectively.
Synthesis and transformations of sulfur-substituted indolizidines and quinolizidines
作者:Shang-Shing P. Chou、Chung-Wen Ho
DOI:10.1016/j.tetlet.2005.09.191
日期:2005.12
underwent [4+2] cycloaddition reactions with p-toluenesulfonyl isocyanate to give tetrahydropyridinones 3a–b. Through N-detosylation of 3a–b and subsequent intramolecular cyclization, indolizidine 5a and quinolizidine 5b were synthesized. Useful functional group transformations of compounds 5a–b were also investigated.
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.