Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2011-06-21
2011-06-21
Young, Shawquia (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07964737
ABSTRACT:
Disclosed herein a process for producing 2-(n-butyl)-3-[[2′-(tetrazol-5-yl)biphenyl-4-yl]methyl]-1,3-diazaspiro[4.4]non-1-en-4-one of formula (I) in pure form by using selective solvent system and cost efficient raw materials and reagents.
REFERENCES:
patent: 0 708 103 (1996-04-01), None
patent: 99 38847 (1999-08-01), None
patent: 2004 007482 (2004-01-01), None
patent: 2005 051943 (2005-06-01), None
IN 193265 (Accession No. 146:379983) retrieved from CAPLUS on May 2010.
Bandi Vinod Vishwanath
Kishore Charugundla
Manjunatha Sulur G.
Murali Rajappa
Sathish Mysore A.
Jubilant Organosys Limited
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Young Shawquia
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