@article{4d2073f3850c4808af8f93784630cb63,
title = "Enantioselective syntheses of poison-frog alkaloids: 219F and 221I and an epimer of 193E",
abstract = "Enantioselective syntheses of indolizidines (-)-219F and (-)-221I have been achieved and the relative stereochemistries of natural 219F and 221I were determined by the present synthesis. A levorotatory indolizidine, corresponding to one proposed structure for 193E, was also synthesized, but was found to differ from 193E. It seems likely that natural 193E is the 8-epimer of the synthesized indolizidine.",
author = "Naoki Toyooka and Zhou Dejun and Hideo Nemoto and Garraffo, {H. Martin} and Spande, {Thomas F.} and Daly, {John W.}",
note = "Funding Information: This work was supported in part by The Research Foundation for Pharmaceutical Sciences. We gratefully acknowledge financial support provided by Grant-aid (No. 17590004) for Scientific Research by the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government. Research at NIH was supported by the intramural program of NIDDK.",
year = "2006",
month = jan,
day = "23",
doi = "10.1016/j.tetlet.2005.11.046",
language = "英語",
volume = "47",
pages = "581--582",
journal = "Tetrahedron Letters",
issn = "0040-4039",
publisher = "Elsevier Ltd.",
number = "4",
}