FORMATION OF N,N'-BIS[1'-(S)-1'-CARBOETHOXY-3'-PHENYLPROPYL]- 3,6-S-DIMETHYL-2,5-DIKETOPIPERAZINE DURING THE REACTION OF ETHYL ALPHA(S)-[1-(S)-CARBOXYETHYLAMINO]BENZENEBUTANOATE WITH DI-T-BUTYL DICARBONATE
Dk. Dikshit et Sk. Panday, FORMATION OF N,N'-BIS[1'-(S)-1'-CARBOETHOXY-3'-PHENYLPROPYL]- 3,6-S-DIMETHYL-2,5-DIKETOPIPERAZINE DURING THE REACTION OF ETHYL ALPHA(S)-[1-(S)-CARBOXYETHYLAMINO]BENZENEBUTANOATE WITH DI-T-BUTYL DICARBONATE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 32(7), 1993, pp. 788-789
Reaction of ethyl lpha(S)-[1-(S)-carboxyethyl-amino]benzenebutanoate w
ith di-t-butyl dicarbonate in the presence of triethylamine and DMAP g
ives N,N'-bis[1'-(S)-1'-carboethoxy-3'-phenylpropyl]-3, 6-S-dimethyl-2
,5-diketopiperazine in a quantitative yield.