indan-2-yloxycarbonyloxymethyl (1R,5S,6S)-2-{[(3S,5S)-5-(N,N-dimethylcarbamoyl)pyrrolidin-3-yl]thio}-6-[(1R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylate

保护美罗培南

(4-nitrophenyl)methyl 3-[(diphenoxyphosphinyl)oxy]-6-(1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

美罗配南侧链

4-nitrobenzyl (4R,5S,6S)-3-[[(3S,5S)-5-(dimethylcarbamoyl)-3-pyrrolidinyl]thio]-6-[(1R)-1-hydroxy-ethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate