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.
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.