Facile synthesis of two diastereomeric indolizidines corresponding to the postulated structure of alkaloid 5,9E-259B from a Bufonid toad (Melanophryniscus)

by Angela Nelson, H. Martin Garraffo, Thomas F. Spande, John W. Daly, Paul J. Stevenson
Published 2008-01-01

Flexible synthetic routes to poison-frog alkaloids of the 5,8-disubstituted indolizidine-class I: synthesis of common lactam chiral building blocks and application to the synthesis...

by Naoki Toyooka, Dejun Zhou, Hideo Nemoto, H. Martin Garraffo, Thomas F. Spande, John W. Daly
Published 2007-09-01

Flexible synthesis of poison-frog alkaloids of the 5,8-disubstituted indolizidine-class. II: Synthesis of (-)-209B, (-)-231C, (-)-233D, (-)-235B", (-)-221I, and an epimer of 193E a...

by Soushi Kobayashi, Naoki Toyooka, Dejun Zhou, Hiroshi Tsuneki, Tsutomu Wada, Toshiyasu Sasaoka, Hideki Sakai, Hideo Nemoto, H. Martin Garraffo, Thomas F. Spande, John W. Daly
Published 2007-09-01