Amidoalkylation 6-methoxy-I -methoxycarbonylpipecolate (4) with several nucleophiles gave the 2,6-cis 6-substituted pipecolates, stereoselectively. ... We recently reported that electrochemical oxidation of the Na,N&-bis(methoxycarbony1)-L-lysine ester (1) gave the 6-aminopipecolate derivative (2) , which could be converted into (2s)-pipecolic acid (3), sustaining the chirality of the starting material. 1 We have now found that the condensations of the 6- ...