C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 499/883 (2006.01) C07D 205/09 (2006.01) C07D 499/88 (2006.01) C07F 7/10 (2006.01)
Patent
CA 2247269
It is described a process for the preparation of 2-halomethyl-penems (in particular 2-chloromethyl-penems) comprising, as intermediate step, the formation of the corresponding 2-haloacetylthio-azetidone.
L'invention concerne un procédé de préparation de 2-halométhyl-pénèmes (en particulier des 2-chlorométhyl-pénèmes) comprenant, comme étape intermédiaire, la formation de la 2-haloacétylthio-azétidone correspondante.
Altamura Maria
Perotta Enzo
A. Menarini Industrie Farmaceutiche Riunite S.r.l.
Instituto Luso Farmaco D'italia S.p.a.
Ridout & Maybee Llp
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