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Expired Canadian patentCanada

Chemical probes for left-handed dna and chiral metal complexes as z-specific anti-tumor agents

CA 1339306 C · Owner: Barton, Jacqueline K. · Inventors: Barton, Jacqueline K.

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Abstract From the Canadian patent

This invention concerns a coordination complex and salts and optically resolved enantiomers thereof of, the formula (R)3---M, wherein R comprises 1,10-phenanthroline or a substituted derivative thereof M, comprises a suitable transition metal e.g. ruthenium, (II) or cobalt(III), and R is bonded to M by a coordination bond. The complexes of this invention are useful in methods for labeling, nicking and cleaving DNA. The lambda enantiomer of complexes of this invention is useful in methods for specifically labeling, detecting nicking, and cleaving Z-DNA. The complexes may also be used in a method for killing tumor cells and may be combined with a pharmaceutically acceptable carrier to form a …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted August 19, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 17, 1986
GrantedAugust 19, 1997
Term endedAugust 19, 2014
Patent numberCA 1339306 C
Classification (IPC)C07F15/06 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005200820112014Application filedJan 17, 1986Patent grantedAug 19, 1997Term endedAug 19, 2014

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.