289636-50-6Relevant articles and documents
Vinylogous urethanes in alkaloid synthesis. Applications to the synthesis of racemic indolizidine 209B and its (5A*,8S*,8aS*)-(±) diastereomer, and to (-)-indolizidine 209B
Michael, Joseph P.,Gravestock, David
, p. 1919 - 1928 (2000)
Syntheses of racemic (5A*,8S*,8aS*)-8-methyl-5-pentylindolizidine (indolizidine 209B) (±)-l and its hitherto unknown ((5A*,8S*,8aS*) diastereomer (±)-20 were accomplished in eight steps from pyrrolidine-2-thione and ethyl oct-2-enoate. Key steps included