Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1991-04-29
1993-08-03
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
556436, 560231, 568332, C07C 6976
Patent
active
052330761
ABSTRACT:
A novel process and intermediates are disclosed for the preparation of the optically active compound ##STR1## wherein R.sup.3 is a protecting group. This cyclobutanone compound is used to prepare a compound of the formula ##STR2## having anti-viral activity.
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Davis Stephen B.
E. R. Squibb & Sons Inc.
Shippen Michael L.
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