(2008/06/13)
(2008/06/13)
(2008/06/13)
p. 1345 - 1348
(2007/10/03)1-Benzyl-3(S)-n-butylpiperazine-2,5-dione
(S)-1-Benzyl-3-butyl-piperazine
Boc-Nle-OH
di-tert-butyl dicarbonate
4-Benzyl-1-tert-butoxycarbonyl-2(S)-n-butylpiperazine
1-tert-butoxycarbonyl-2(S)-n-butyl-4-(2,3-dimethylbenzoyl)piperazine
((S)-3-Butyl-piperazin-1-yl)-(2,3-dimethyl-phenyl)-methanone
{(R)-1-[(S)-2-Butyl-4-(2,3-dimethyl-benzoyl)-piperazin-1-ylmethyl]-2-tritylsulfanyl-ethyl}-carbamic acid tert-butyl ester
{(R)-1-[(S)-2-Butyl-4-(naphthalene-1-carbonyl)-piperazin-1-ylmethyl]-2-tritylsulfanyl-ethyl}-carbamic acid tert-butyl ester