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:
Jun. 21, 1983
Filed:
Aug. 03, 1981
Applicant:
Inventors:
Milos Sovak, La Jolla, CA (US);
Ramachandran Ranganathan, San Diego, CA (US);
Assignee:
The Regents of the University of California, Berkeley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549347 ; 549228 ; 549415 ; 549472 ; 564488 ; 564490 ; 564503 ; 564504 ;
Abstract
Novel methods are provided for synthesizing 2-amino-2-tetritol, by positive halogen addition to protected 1,4-dioxybutene-2 in the presence of a nitrile, resulting in addition of a halo functionality and the nitrile functionality across the double bond. Upon hydrolysis, the desired erythro-product can be obtained in stereochemically good yield.