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US3936468A Expired / Lapsed US ⏱️ 0.0 years remaining

Phenylbutanol derivatives

Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1973-02-15
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Granted: 1976-02-03
•
Expires: 1993-02-15
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Abstract

Abstract Butyrophenone derivatives having excellent psychotropic activity and represented by the formula, WHEREIN A represents a single or double bond linkage; R1 represents a hydrogen atom or a C1 - C4 alkyl group; R2, which is present only in case A represents a single bond linkage, represents a hydrogen atom, or a hydroxyl, C1 - C4 alkyl, or C1 - C4 alkoxy group; R3 represents a hydrogen atom, or a piperidino, pyrrolidino, morpholino, furyl, thienyl, C1 - C4 alkylamino, benzylamino, unsubstituted or halogen-substituted phenyl group, etc.; and X represents a hydrogen or halogen atom, or a C1 - C4 alkyl, C1 - C4 alkoxy, or trifluoromethyl group, can be prepared by reducing a benzoylpropionamide derivative of the formula, WHEREIN A, R1, R2, R3 and X have the same meanings as defined above, to a phenylbutanol derivative of the formula,

Inventors

  • 👤 Hisao Yamamoto
  • 👤 Masaru Nakao
  • 👤 Kikuo Sasajima
  • 👤 Isamu Maruyama
  • 👤 Shigenari Katayama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:53
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/04; C07D295/00; C07D295/04; C07D295/08; C07D413/00; C07D413/02; C07D413/04

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 9 words
1-(p-Fluorophenyl)-4-[4-(p-chlorophenyl)-4-hydroxy-piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 2
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-[4-(p-chlorophenyl)-4-hydroxy-piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 3
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-(4-hydroxy-4-phenyl-piperidino)-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 4
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-(4-hydroxy-4-phenyl-piperidino)-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 5
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-[4-hydroxy-4-(m-trifluoromethylphenyl)piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 6
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-[4-hydroxy-4-(m-trifluoromethylphenyl)piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 7
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-[4-hydroxy-4-(p-methylphenyl)-piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.
Claim 8
Dependent Claim 9 words
1-(p-Fluorophenyl)-4-[4-hydroxy-4-(p-methylphenyl)-piperidino]-1-butanol or its non-toxic, pharmaceutically acceptable acid addition salt.

References Cited (Backward Citations)

US3438991A Cited
US3080372A Cited
US3462444A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-02-02 1979-08-04 1980-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-02-02 1983-08-04 1984-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-02-02 1987-08-04 1988-02-03 $7700.00 Window Closed / Lapsed

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