Aminomethylation of chiral silyl enol ethers: access to β2-homotryptophane and β2-homolysine derivatives
摘要:
We describe here the aminomethylation of chiral silyl enol ether derivatives using iminium ion. The choice of judicious precursors with adequate protecting groups for the silylation/aminomethylation step was required to achieve the synthesis of beta(2)-homotryptophane in few steps. The same methodology was used to prepare a beta(2)-homolysine derivative. (C) 2008 Elsevier Ltd. All rights reserved.
We describe here the aminomethylation of chiral silyl enol ether derivatives using iminium ion. The choice of judicious precursors with adequate protecting groups for the silylation/aminomethylation step was required to achieve the synthesis of beta(2)-homotryptophane in few steps. The same methodology was used to prepare a beta(2)-homolysine derivative. (C) 2008 Elsevier Ltd. All rights reserved.