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 7189853 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 13, 2007

Filed:

Sep. 02, 2004
Applicants:

Venkataraman Sundaram, Hyderabad, IN;

Srinivasan Thirumalai Rajan, Hyderabad, IN;

Veera Venkata Naga Chandra Sekhar Bulusu, Hyderabad, IN;

Alokkumar Srivastav, Gorakhapur, IN;

Ravi Kumar Kasturi, Hyderabad, IN;

Sanjeev Kumar Aavula, Hyderabad, IN;

Inventors:

Venkataraman Sundaram, Hyderabad, IN;

Srinivasan Thirumalai Rajan, Hyderabad, IN;

Veera Venkata Naga Chandra Sekhar Bulusu, Hyderabad, IN;

AlokKumar Srivastav, Gorakhapur, IN;

Ravi Kumar Kasturi, Hyderabad, IN;

Sanjeev Kumar Aavula, Hyderabad, IN;

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 215/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is related to a process for preparing montelukast involving the compound of formula (VI): wherein X═CN or CONH.


Find Patent Forward Citations

Sundaram, Venkataraman. (2007). Process for the preparation of [r-(e)-1-[[[1-[3-[2-[7-chloro-2-quinolinyl]ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid (montelukast) and its pharmaceutically acceptable salts (U.S. Patent No. 7189853). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7189853

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