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US3563986A Expired / Lapsed US ⏱️ 0.0 years remaining

4 - phthalimido - n - heterocyclic amino methyl or piperidino hydrazino piperidine diones 2,6

Assignee: Individual
•
Filing: 1966-05-09
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Granted: 1971-02-16
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Expires: 1986-05-09
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Abstract

Abstract DICARBOXYLIC ACID IMIDES WHICH CARRY IN 4-POSITION OF THEIR RING STRUCTURE AN ACYLATED AMINO OR IMINO GROUP AND ARE SUBSTITUTED AT THE IMIDO GROUP BY BASICALLY SUBSTITUTED METHYL HAVE VALUABLE PHARMACOLOGICAL PROPERTIES, SUCH AS ANTI-TUMOR, IMMUNO-SUPPRESSIVE, AND SEDATIVE PROPERTIES. EXAMPLES OF SUCH COMPOUNDS ARE 4-PHTHALIMIDO PIPERIDINEDIONES 2,6 SUBSTITUTED IN 1-POSITION BY A MORPHOLINO, PIPERIDINO, OR PYRROLIDINO METHYL GROUP OR BY AN N-METHYL-N-MORPHOLINO OR N-METHYL-N-PIPERIDINO AMINO METHYL GROUP; 4-(3'',5''-DITHIA-3'',4'',5'',6''-TETRAHYDROPHTHALIMIDO) PIPERIDINEDIONE-2,6 SUBSTITUTED IN 1-POSITION BY A MORPHOLINO, PIPERIDINO, OR PYRROLIDINO METHYL GROUP, AND OTHERS.

Inventors

  • 👤 Ernst Frankus
  • 👤 Heinrich Mueckter
  • 👤 Siegfried Herrling
  • 👤 Franz Otto
  • 👤 Horst Boehlke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 09:43
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/04; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; C07D413/00; C07D413/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-15 1974-08-17 1975-02-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-15 1978-08-17 1979-02-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-15 1982-08-17 1983-02-16 $7700.00 Window Closed / Lapsed

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