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:
Dec. 09, 2014
Filed:
Aug. 23, 2011
Ramamohan Rao Davuluri, San Clemente, CA (US);
Ravi Ponnaiah, Madurai, IN;
Guruswamy Batthni, Hyderabad, IN;
Chandra Murthy V. R. Medida, East Godavari, IN;
Santhosh Dummu, Srikakulam, IN;
Ramamohan Rao Davuluri, San Clemente, CA (US);
Ravi Ponnaiah, Madurai, IN;
Guruswamy Batthni, Hyderabad, IN;
Chandra Murthy V. R. Medida, East Godavari, IN;
Santhosh Dummu, Srikakulam, IN;
Ramamohan Rao Davuluri, , IN;
Abstract
The invention provides a novel process for the synthesis of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one, the process comprising of reacting the salicylic acid with salicylamide in the presence of p-toluenesulfonyl chloride, base and solvent. The use of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one in the preparation of Deferasirox is also disclosed in the invention.