910823-75-5Relevant academic research and scientific papers
Asymmetric formal synthesis of (-)-swainsonine by a highly regioselective and diastereoselective allylic amination using chlorosulfonyl isocyanate
Li, Qing Ri,Dong, Guang Ri,Park, Sook Jin,Hong, Yong Rae,Kim, In Su,Jung, Young Hoon
, p. 4427 - 4433 (2013/07/26)
A concise asymmetric formal synthesis of (-)-swainsonine from readily available D-erythronolactone is described. The key steps include a highly diastereoselective amination of a chiral benzylic ether, which occurs with the retention of stereochemistry using chlorosulfonyl isocyanate, and a palladium-catalyzed decarboxylative N-allylation of an allyl carbamate. Copyright
Asymmetric synthesis of anti-1,2-amino alcohols via the borono-Mannich reaction: A formal synthesis of (-)-swainsonine
Au, Christopher W. G.,Pyne, Stephen G.
, p. 7097 - 7099 (2007/10/03)
Chiral α-hydroxy aldehydes generated in situ by the ADH reaction of vinyl sulfones undergo a borono-Mannich reaction with β-styrenyl boronic acid and primary amines to give anti-1,2-amino alcohols in high enantiomeric purities (83-95% ee). This new method allows much more rapid access to these valuable chiral building blocks that has been used in a short formal synthesis (10 synthetic steps from 4-penten-1-ol) of (-)-swainsonine.
