4-BMA MAP Side chain for meropenem(2S-CIS) Faropenem,Fropenem Side chain for biapenem Side chain for ertapenem P-Toluenesulfonyl azide or 4-Methylbenzenesulfonyl azide P-Dodecylbenzenesulfonyl azide or 4-Dodecylbenzenesulfonyl azide 4'-Methylbenzylidene camphor(MBC 95) Diphenyl chlorophosphate or Diphenyl phosphorochloridate or Phosphorochloridic acid,diphenyl ester Diphenyl phosphorazidate 3-(2-Bromo-1-oxopropyl)-spiro[2H-1,3-benzoxazine-2,1'-cyclohexan]-4(3H)-one (2S,4R)-2-carboxylic-4-hydroxy-1-(p-nitrobenzyloxycarbonyl)-1-pyrrolidine(Intermaterial of the side for penem)

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