Reductive amination of fusidane triterpenoid ketones
AbstractNew nitrogen-containing analogues of fusidane triterpenoids were synthesized via the reductive amination of 3,11-dioxo derivatives of fusidic acid and its methyl ester by primary and secondary amines (BunNH2, Pyrrolidine, NH2CH2CH2NH2) in the presence of sodium borohydrides. The reaction proceeds with high chemo- and stereoselectivity and gives 3Î²-amino substituted products with yields of 75-88%.
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