(R)-4-硝基苄基 2-重氮-4-((2R,3S)-3-((R)-1-羟基-乙基)-4-羰基氮杂环丁烷-2-基)-3-羰基戊酸酯

(R)-4-硝基苄基 2-重氮-4-((2R,3S)-3-((R)-1-羟基-乙基)-4-羰基氮杂环丁烷-2-基)-3-羰基戊酸酯
(R)-4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate;(3S,4R)-3-((1R)-1-HYDROXYETHYL)-4[(1R)-1-METHYL-3-DIAZO-3-(P-NITROBENZYLOXYCARBONYL)-2-OXOPROPYL]AZETIDIN-2-ONE;(3S,4R)-3-[(1R)-1-Hydroxyethyl]-4-[(1R)-1-methyl-3-diazo-3-(4-nitrobenzyloxycarbonyl)-2-oxopropyl]azetidin-2-one;(3S,4R)-3-[(1R)-1-Hydroxyethyl]-4-[(1R)-1-methyl-3-diazo-3-(p-nitrobenzyloxycarbonyl)-2-oxopropyl]azetidin-2-one;(R)-4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxy-ethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate;2-Azetidinebutanoic-a-14C acid, a-diazo-3-(1-hydroxyethyl)-g-methyl-b,4-dioxo-,(4-nitrophenyl)...;F-9;(4R)-2-diazonio-4-[(2R,3S)-3-[(1R)-1-hydroxyethyl]-4-oxoazetidin-2-yl]-1-[(4-nitrophenyl)methoxy]-1-oxopent-2-en-3-olate