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:
Mar. 26, 2019
Filed:
Sep. 30, 2015
Applicant:
Curadev Pharma Pvt Ltd., Noida, IN;
Inventors:
Tammy Savage, Chatham Maritime, GB;
Stephen Wicks, Chatham Maritime, GB;
John Mitchell, Chatham Maritime, GB;
Assignee:
CURADEV PHARMA PRIVATE LIMITED, Noida, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 37/16 (2006.01); A61K 31/506 (2006.01); A61K 47/40 (2006.01); A61K 9/00 (2006.01); A61K 47/69 (2017.01);
U.S. Cl.
CPC ...
C08B 37/0012 (2013.01); A61K 9/0019 (2013.01); A61K 31/506 (2013.01); A61K 47/40 (2013.01); A61K 47/6951 (2017.08);
Abstract
The invention provides a method for preparing sulphoalkyl ether-β-cyclodextrin. The method comprises first contacting cyclodextrin with a base to form activated cyclodextrin. The method then comprises separately contacting the activated cyclodextrin with an alkyl sultone to form sulphoalkyl ether-β-cyclodextrin. The activation reaction is carried in batch and the sulphoalkylation reaction is carried out under continuous flow conditions.