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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 11078231 B1

PDFFull Text
Date of Patent:
Aug. 03, 2021

Filed:

Sep. 13, 2017

Process for purification of carfilzomib intermediate

Applicant:

Fresenius Kabi Oncology Limited, New Delhi, IN;

Inventors:

Walter Cabri, Milan, IT;

Saswata Lahiri, Haryana Gurugram, IN;

Govind Singh, Haryana Gurugram, IN;

Sarbjot Singh Sokhi, Haryana Gurugram, IN;

Maneesh Kumar Pandey, Haryana Gurugram, IN;

Raj Narayan Tiwari, Haryana Gurugram, IN;

Sonu Prasad Shukla, Haryana Gurugram, IN;

Assignee:

FRESENIUS KABI ONCOLOGY LTD, New Delhi, IN;

Attorney:

Leydig, Voit & Mayer, Ltd.

Primary Examiner:

Thomas S Heard

Int. Cl.
CPC ...
A61K 38/00 (2006.01); C07K 1/22 (2006.01); C07D 303/32 (2006.01); C07C 53/18 (2006.01); C07K 5/107 (2006.01); C07K 5/087 (2006.01); C07K 5/103 (2006.01); A61P 35/00 (2006.01);
U.S. Cl.
CPC ...
C07K 1/22 (2013.01); C07C 53/18 (2013.01); C07D 303/32 (2013.01); C07K 5/0812 (2013.01); C07K 5/1008 (2013.01); C07K 5/1016 (2013.01); A61K 38/00 (2013.01); A61P 35/00 (2018.01); C07B 2200/13 (2013.01);
Abstract

The present invention relates to a process for the purification of compound of formula II, wherein X may be independently selected from trifluoroacetic acid, hydrochloric acid, hydrobromic acid, p-toluene sulfonic acid and phosphoric acid; its isolation as solid and use for the preparation of carfilzomib.

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Cabri, Walter. (2021). Process for purification of carfilzomib intermediate (U.S. Patent No. 11078231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11078231

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