dihydro-5(S)-[[4-[(1,1-dimethylethoxy)carbonyl]-2(S)-(N-tert-butylcarbamoyl)piperazinyl]methyl]-3(R)-(phenylmethyl)-3(2H)-furanone

(2R,4S)-2-benzyl-5-((S)-4-(tert-butoxycarbonyl)-2-(tert-butylcarbamoyl)piperazin-1-yl)-4-hydroxypentanoic acid

2(R)-(phenylmethyl)-4(S)-<(tert-butyldimethylsilyl)oxy>-5-<1-<4-<(1,1-dimethylethoxy)carbonyl>-2(S)-(N-tert-butylcarbamoyl)piperazinyl>>pentanoic acid

2-甲酸吡嗪

吡嗪-2-甲酰氯