p. 2344 - 2356
(2007/10/02)
N-
2(S)-<5(R)-<1(S)-<(tert-butyloxycarbonyl)amino>-3-methylbutyl>-2,2-dimethyl-4(R)-dioxolanyl>-4-methyl-pentanoic acid
ethyl 3-<3-(tert-butyloxycarbonyl)-2,2-dimethyl-4(S)-isobutyl-5(S)-oxazolidinyl>propenoate
1(R)-<3-(tert-butyloxycarbonyl)-2,2-dimethyl-4(S)-isobutyl-5(R)-oxazolidinyl>-2(R)-isobutyl-1,3-propanediol
2(R)-<5(R)-<1(S)-<(tert-butyloxycarbonyl)amino>-3-methylbutyl>-2,2-dimethyl-4(R)-dioxolanyl>-4-methyl-pentanol