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:
Feb. 03, 2026
Filed:
Apr. 06, 2023
Applicant:
Fresenius Kabi Oncology Limited, New Delhi, IN;
Inventors:
Sandeep Dhavaria, Gurgaon, IN;
Anil Shamraj Bhoyar, Gurgaon, IN;
Rohit Kumar, Gurgaon, IN;
Chandan Kumar Gupta, Gurgaon, IN;
Hemant Kumar Singh, Gurgaon, IN;
Nitin Gupta, Gurgaon, IN;
Govind Singh, Gurgaon, IN;
Walter Cabri, Cassina de' Pecchi, IT;
Assignee:
FRESENIUS KABI ONCOLOGY LTD., New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); C07D 471/04 (2013.01);
Abstract
The present invention relates to an improved process for the preparation of a compound of formula V or a salt thereof, Formula (V) The present invention also provides a process for the preparation of a compound of formula I, used in the synthesis of the compound of formula V, Formula (I) wherein Formula I is Formula Ia, when R is H wherein Formula I is Formula Ib, when R is CHCOCH.