Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Patent
1989-06-23
1990-08-14
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
C07D40312, C07D20509, C07F 718
Patent
active
049488856
ABSTRACT:
There is disclosed a compound represented by the formula ##STR1## wherein each P is hydrogen or a hydroxy protecting group and R and R' are each the same and are hydrogen, ##STR2## wherein R" is lower alkyl and R'" is a carboxy protecting group. The compounds are useful as intermediates for preparing penems.
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Gala Dinesh
Hou Donald
Steinman Martin
Wong Yee-Shing
Berch Mark L.
Miller Stephen I.
Rosen Gerald S.
Schering-Plough Corp.
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