描述:
2-Azetidinebutanoic acid, α-diazo-3-[(1R)-1-hydroxyethyl]-γ-methyl-β,4-dioxo-, (4-nitrophenyl)methyl ester, (γR,2R,3S)- 、 [(2Z,4R)-2-diazo-4-[(2R,3S)-3-[(1R)-1-hydroxyethyl]-4-oxoazetidin-2-yl]-3-oxopentanoyl] 4-nitrobenzoate 在
[(2Z,4R)-2-diazo-4-[(2R,3S)-3-[(1R)-1-hydroxyethyl]-4-oxoazetidin-2-yl]-3-oxopentanoyl] 4-nitrobenzoate 作用下,
以63的产率得到3-[[5-[(Dimethylamino)carbony pyrrolidinyl] thio]-6-(1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, (4-nitrophenyl)methyl ester