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Title: US5856551: Macromolecular structure for boron neutron-capture therapy
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Country: US United States of America

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16 pages

 
Inventor: Kane, Robert R.; Los Angeles, CA
Hawthorne, M. Frederick; Encino, CA

Assignee: The Regents of the University of California, Oakland, CA
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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Published / Filed: 1999-01-05 / 1997-02-27

Application Number: US1997000810333

IPC Code: Advanced: A61K 41/00; C07F 9/6596;
Core: C07F 9/00; more...
IPC-7: C07F 9/09;

ECLA Code: A61K41/00Z4; C07F9/6596;

U.S. Class: Current: 558/072;
Original: 558/072;

Field of Search: 558/072

Priority Number:
1997-02-27  US1997000810333
1995-01-11  US1995000371563
1993-03-12  US1993000030920

Abstract: A general synthetic method has been developed for the rapid and efficient production of a variety of boron-rich macromolecules suitable for conjugation with of inclusion in receptor-mediated delivery systems as well as other delivery systems. Preparation techniques have been developed to yield precisely ordered oligophosphates which are soluble, hydrophilic, may be homogeneous, and may be prepared with a variety of functional groups.

Attorney, Agent or Firm: Loeb & Loeb LLP ; Ram, Michael J. ; Gluck, Peter J. ;

Primary / Asst. Examiners: Ambrose, Michael G.;

Maintenance Status: CC Certificate of Correction issued
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Related Applications: Go to Result Set: 1 patent(s) that list this one as related
Application Number Filed Patent Pub. Date  Title
US1995000371563 1995-01-11       
US1993000030920 1993-03-12       


       
Parent Case:     This is a continuation application of application Ser. No. 08/371,563 filed on Jan. 11, 1995, abandoned, which is a continuation of application Ser. No. 08/030,920 filed Mar. 12, 1993, abandoned.

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First Claim:
Show all 5 claims
What is claimed is:     1. A method of preparing a boron-rich oligophosphate comprising the steps of:
  • (i) preparing a dihydroxy carborane derivative;
  • (ii) converting said dihydroxy carborane derivative to a mono-hydroxy-protected dihydroxy carborane derivative;
  • (iii) reacting said mono-hydroxy-protected dihydroxy carborane derivative with a coupling agent comprising phosphorus to form a protected monomer unit;
  • (iv) converting said protected monomer unit to an alcohol by removing the hydroxy-protecting group; and,
  • (v) reacting at least a plurality of said monomer units to form an oligophosphate.


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Forward References: Show 2 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (2)   |   Backward references (5)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 3pp US3444272  1969-05 Alexander et al.   ALKOXY DERIVATIVES OF PHOSPHINO-M-CARBORANES
Buy PDF- 4pp US3450798  1969-06 Green et al.   PHOSPHATE ESTERS OF HYDROXY-CARBORANES
Buy PDF- 13pp US4399817  1983-08 Benedict  The Procter & Gamble Company Boron containing polyphosphonates for the treatment of calcific tumors
Buy PDF- 10pp US5272250  1993-12 Spielvogel et al.   Boronated phosphoramidate compounds
Buy PDF- 9pp US5462724  1995-10 Schinazi et al.   Sensitizing agents for use in boron neutron capture therapy
       
Foreign References: None

Other Abstract Info: CHEMABS 130(08)096032P CHEMABS 130(08)096032P DERABS C1999-105209 DERABS C1999-105209

Other References:
  • Paxton, Raymond J.; Beatty, Barbara G.; Varadarajan,, Aravamuthan; and Hawthorne, M. Frederick; "Carboranyl Peptide--Antibody Conjugates for Neutron-Capture Therapy: Preparation, Characterization, and In Vivo Evaluation"; Bioconjugate Chem., vol. 3, 1992, p. 241. (7 pages) Cited by 3 patents [ISI abstract]
  • Abraham, R.; Muller; Gabriel, D; "Boronated Antibodies for Neutron Capture Therapy"; Strahlenther. Onkol. 165 (1989), 148-151 (Nr. 2/3). (4 pages) Cited by 2 patents
  • Barth, R.F.; Mafune, N.; Alam, F.; Adams, D.M.; Soloway, A.H.; Makroglou, G.E.; Oredipe, O.A.; Blue, T.E.; Steplewski, Z.; "Conjugation, Purification and Characterization of Boronated Monoclonal Antibodies for Use in Neutron Capture Therapy"; Strahlenther, Onkol. 165 (1989), 142-145 (Nr. 2/3). (4 pages) Cited by 2 patents
  • Tamat, S.R.; Patwardhan, A.; Moore, D.E.; Kabral, A.; Bradstock, K.; Hersey, P.; Allen, B.J.; "Boronated Monoclonal Antibodies for Potential Neutron Capture Therapy of Malignant Melanoma and Leukaemia"; Strahlenther. Onkol. 165 (1989), 145-147 (Nr. 2/3). (3 pages) Cited by 2 patents
  • Varadarajan, Aravamuthan; Hawthorne, M. Frederick; "Novel Carboranyl Amino Acids and Peptides: Reagents for Antibody Modification and Subsequent Neutron-Capture Studies"; Bioconjugate Chem., vol. 2, No. 4, 1991, p. 242. (12 pages) Cited by 4 patents [ISI abstract]


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