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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.:

US 4783535 B1

PDFFull Text
Date of Patent:
Nov. 08, 1988

Filed:

Mar. 18, 1986

Chemical intermediates in the preparation of aromatic-1,4-oxazepinones

Applicant:
Inventors:

Young S Lo, Richmond, VA (US);

Albert D Cale, Jr, Mechanicsville, VA (US);

Assignee:

A. H. Robins Company, Incorporated, Richmond, VA (US);

Attorney:
Primary Examiner:

Mary C Lee

Assistant Examiner:

Kurt G Briscoe

Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546316 ; 540597 ; 540610 ; 544128 ; 544131 ; 544165 ; 544169 ; 544172 ; 544363 ; 544365 ; 544399 ; 544400 ; 546155 ; 546156 ; 546159 ; 546169 ; 546170 ; 546193 ; 546194 ; 546208 ; 546210 ; 546211 ; 546232 ; 546233 ; 546234 ; 546261 ; 546278 ; 546279 ; 546281 ; 546292 ; 546318 ; 546322 ; 548300 ; 548341 ; 548342 ; 548353 ; 548378 ; 548561 ; 548566 ; 548567 ; 548578 ; 548579 ; 560 21 ; 560 22 ; 560 37 ; 560 61 ; 562435 ; 562437 ; 562442 ; 564166 ; 564184 ;
Abstract

A process for the preparation of 1,4-oxazepinones and thiones having the formula: ##STR1## wherein A is an aromatic ring selected from benzene, naphthalene, quinoline or pyridine; n is 1 to 3; Z is an amino radical; R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl; and R.sup.4 and R.sup.5 are hydrogen and loweralkyl starting from chloroaromatic carboxylates and alkanolamines is disclosed. The oxazepinones and oxazepinethiones prepared by the process have utility as antihistaminics with low sedative potential. Novel intermediate compounds are also disclosed.

Find Patent Forward Citations

Lo, Young. (1988). Chemical intermediates in the preparation of aromatic-1,4-oxazepinones (U.S. Patent No. 4783535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4783535

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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