105318-23-8Relevant articles and documents
Beta-lactams and their production
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, (2008/06/13)
A beta-lactam compound of the formula: STR1 wherein R1 and R2 are, the same or different, each a hydrogen atom or a lower alkyl group, R30 is a hydroen atom or a lower alkyl group having a beta-configuration, R4 is a carboxyl-protecting group, X is a hydrogen atom or a protected hydroxyl group and COZ is a protected thiolcarboxyl group, which is useful as a valuable intermediate in the stereospecific production of 1-alkylcarbapenem compounds.