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:
May. 30, 2017
Filed:
Dec. 15, 2015
Applicant:
Immunogen, Inc., Waltham, MA (US);
Inventors:
Wei Li, Acton, MA (US);
Robert Yongxin Zhao, Lexington, MA (US);
Assignee:
ImmunoGen, Inc., Waltham, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/12 (2006.01); C07D 207/452 (2006.01); C07D 207/46 (2006.01); C07D 213/71 (2006.01);
U.S. Cl.
CPC ...
C07D 401/12 (2013.01); C07D 207/452 (2013.01); C07D 207/46 (2013.01); C07D 213/71 (2013.01); C07B 2200/13 (2013.01);
Abstract
Processes for the preparation of charged crosslinkers bearing a sulfonic acid moiety are disclosed. These procedures also optionally include methods to convert the resulting products to substantially a single salt form.