188647-58-7Relevant articles and documents
Stereoselective Total Synthesis of the Diastereomeric Tricyclic Alkaloids Tetraponerine-7 and Tetraponerine-8 Using O-Pivaloylated d -Arabinopyranosylamine as the Common Auxiliary
Strassnig, Irina,K?rber, Karsten,Hünger, Udo,Kunz, Horst
, p. 2299 - 2316 (2015)
Based on a diastereoselective domino Mannich-Michael reaction cascade of 2-N-[(S)-3-{(benzyloxycarbonyl)[4-(tert-butyldiphenylsiloxy)butyl]amino}octylidene]-2,3,4-tri-O-pivaloyl-α-d-arabinopyranosylamine with the Danishefsky diene, the major component of
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 (2007/10/03)
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