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Expired Canadian patentCanada

Thienotriazolodiazepine compounds and pharmaceutical uses thereof

CA 1324863 C · Owner: Moriwaki, Minoru · Inventors: Tanaka, Hiroshi; Terasawa, Michio; Moriwaki, Minoru

CIPO record

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Abstract From the Canadian patent

A thienotriazolodiazepine compound of the formula: or a pharmaceutically acceptable salt thereof wherein, R1 is alkyl;, R2 is methyl or trifluoromethyl; R3 is phenyl or phenyl substituted by one substituent selected from the group consisting of halogen alkyl and, alkoxy;, R4 is -B1R3, In the formula -B1R5 when ? > O, R3 is hydroxy;, halogen; a group represented by -N(R11)(R12) wherein R11 and, R12 are the same or different and each is a hydrogen; straight or branched chain alkyl having 1 to 10 carbon atoms which may be substituted by amino, alkylamino dialkylamino, or cyclic amino; or R11 and R12 together with the adjacent nitrogen atom form a saturated 5- to 7-membered heterocycle selected …

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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 November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
  • 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 25, 1989
GrantedNovember 30, 1993
Term endedNovember 30, 2010
Patent numberCA 1324863 C
Classification (IPC)C07D495/14 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJan 25, 1989Patent grantedNov 30, 1993Term endedNov 30, 2010

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