p. 4903 - 4906
(2007/10/02)(5R,6S)-3-(Diphenoxy-phosphoryloxy)-6-((R)-1-hydroxy-ethyl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
p-nitrobenzyl 6-(1'-hydroxyethyl)-1-azabicyclo(3.2.0)heptane-3,7-dione-2-carboxylate
C22H30N4O6SSi
N-(N'-p-nitrobenzyloxycarbonyl) formimidoyl cysteamine