Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-03-13
2007-03-13
Davis, Zinna N. (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
10932562
ABSTRACT:
The present invention is related to a process for preparing montelukast involving the compound of formula (VI):wherein X═CN or CONH2.
REFERENCES:
patent: 5565473 (1996-10-01), Belley et al.
patent: 5614632 (1997-03-01), Bhupathy et al.
patent: 5856322 (1999-01-01), Belley et al.
Aavula Sanjeev Kumar
Bulusu Veera Venkata Naga Chandra Sekhar
Kasturi Ravi Kumar
Rajan Srinivasan Thirumalai
Srivastav AlokKumar
Cepeda Milagros A.
Davis Zinna N.
Dr. Reddy's Laboratories Inc.
Dr. Reddy's Laboratories Limited
Franks Robert A.
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