The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 1994
Filed:
Feb. 10, 1993
Applicant:
Inventors:
Daniel J Plata, Waukegan, IL (US);
Anthony K Fung, Gurnee, IL (US);
Howard E Morton, Gurnee, IL (US);
Robert Leanna, Mundelein, IL (US);
William R Baker, Libertyville, IL (US);
John K Pratt, Kenosha, WI (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556420 ; 560 27 ; 560 29 ; 560115 ; 564355 ; 564360 ; 564454 ; 564455 ;
Abstract
The present invention relates to intermediates useful in a process for the preparation of a compound of the formula: ##STR1## wherein R.sub.2a is hydrogen or loweralkyl, R.sub.2b is hydrogen, loweralkyl, cycloalkyl or phenyl and R.sub.1 is cycloalkyl, cycloalkylalkyl, phenyl or benzyl. These intermediates are compounds of the formula: ##STR2## wherein P.sub.2 is an O-protecting group, P.sub.3 is an N-protecting group and R.sub.1, R.sub.2a and R.sub.2b are defined as above.