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:
Nov. 13, 1990
Filed:
Feb. 03, 1988
Dayton T Reardan, Hercules, CA (US);
Dane A Goff, Menlo Park, CA (US);
Xoma Corporation, Berkeley, CA (US);
Abstract
Compounds containing carbohydrate moieties or carboxyl groups are linked to either compounds containing thiol moieties or electron-deficient moieties by the use of linking agents of the formula ##STR1## in which R.sup.1 is NH.sub.2 -- or NH.sub.2 --NH--; R.sup.2 is --NH--C(O)--, --C(O)--NH--, or --C(O)--; R.sup.3 is C.sub.1 -C.sub.10 alkylene, C.sub.5 -C.sub.7 cyclic alkylene, arylene, phenyl-substituted C.sub.1 -C.sub.10 alkylene, benzyl-substituted C.sub.1 -C.sub.10 alkylene, or amino-substituted C.sub.1 -C.sub.10 alkylene; R.sup.4 is H, acetyl, ##STR2## where R.sup.5 is C.sub.1 -C.sub.5 alkyl; m is zero or 1; and n is zero or 1.