Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-06-14
1990-01-23
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D20508, C07D40112, C07D40312, C07F 718
Patent
active
048959391
ABSTRACT:
Disclosed herein is a novel high .beta.-yield producing novel intermediates of the formula ##STR1## where R.sup.4 is ##STR2## useful in the synthesis of 1-.beta.-alkyl carbapenems.
Corbeil Jacques
Daris Jean-Paul
Martel Alain
Berch Mark L.
Bristol-Myers Company
Carnahan R. E.
Cepeda Michelle A.
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