Cyclobutane derivatives
AssigneeE. R. Squibb & Sons, Inc.
InventorsWilliam A. Slusarchyk, Robert Zahler
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Abstract
Cyclobutane derivatives of the formulas ##STR1## wherein P is a hydroxy protecting group and X is a leaving group are useful intermediates in the preparation of antiviral compounds.
Claims2
A compound of the formula ##STR80## wherein X is a leaving group selected from the group consisting of chloro, bromo, iodo, p-toluenesulfonyloxy, and methanesulfonyloxy and P is a hydroxy protecting group selected from the group consisting of ##STR81## benzyl, t-butyldimethylsilyl, t-butyldiphenylsilyl, (triphenylmethyl)dimethylsilyl, methyldiisopropylsilyl, and triisopropylsilyl wherein R.sub.9 is a lower alkyl group of 1.noteq.6 branched or straight chain carbon atoms or phenyl.
Dependencies are inferred from the claim text.