Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2011-04-19
2011-04-19
Aulakh, Charanjit S (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C546S047000
Reexamination Certificate
active
07928235
ABSTRACT:
Methods of preparing CPT-esters are described. The methods include using at least one acid in the esterification reactions or acylation reactions of camptothecins.
REFERENCES:
patent: 5352789 (1994-10-01), Hinz
patent: 5527913 (1996-06-01), Hinz
patent: 5552154 (1996-09-01), Giovanella et al.
patent: 5608066 (1997-03-01), Hinz
patent: 5652244 (1997-07-01), Giovanella et al.
patent: 5731316 (1998-03-01), Cao et al.
patent: 5889017 (1999-03-01), Giovanella et al.
patent: 5922877 (1999-07-01), Cao
patent: 5968943 (1999-10-01), Cao et al.
patent: 6080751 (2000-06-01), Stehlin et al.
patent: 6096336 (2000-08-01), Cao et al.
patent: 6107486 (2000-08-01), Hinz
patent: 6120793 (2000-09-01), Cao et al.
patent: 6156897 (2000-12-01), Hinz
patent: 6166029 (2000-12-01), Giovanella et al.
patent: 6218399 (2001-04-01), Cao et al.
patent: 6228855 (2001-05-01), Cao et al.
patent: 6342506 (2002-01-01), Giovanella et al.
patent: 6352996 (2002-03-01), Cao et al.
patent: 6407118 (2002-06-01), Cao et al.
patent: 6407239 (2002-06-01), Cao et al.
patent: 6624170 (2003-09-01), Giovanella et al.
patent: RE38408 (2004-01-01), Cao
patent: 6699875 (2004-03-01), Cao et al.
patent: 6703399 (2004-03-01), Cao et al.
patent: 2007/0161668 (2007-07-01), Soon-Shiong et al.
patent: WO 97/28165 (1997-08-01), None
patent: WO 98/35940 (1998-08-01), None
patent: WO 03/095461 (2003-11-01), None
patent: WO 2005/062991 (2005-07-01), None
International Search Report and Written Opinion from the International Patent Application No. PCT/US2007/017295, dated Feb. 22, 2008, eleven pages.
Du et al., “Semisynthesis of DB-67 and Other Silatecans from Camptothecin by Thiol-Promoted Addition of Silyl Radicals” Bioorganic & Medicinal Chemistry, 2003, vol. 11, No. 3, pp. 451-458.
U.S. Appl. No. 11/923,727, filed Oct. 25, 2007, Zhisong Cao.
Aulakh Charanjit S
Kilyk & Bowersox P.L.L.C.
The Christus Stehlin Foundation for Cancer Research
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