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US4009173A Expired / Lapsed US ⏱️ 0.0 years remaining

Butyrophenone derivatives

Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1975-09-29
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Granted: 1977-02-22
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Expires: 1995-09-29
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Abstract

Abstract Novel butyrophenone derivatives of the formula: ##STR1## wherein R 1 represents a hydroxyl group or ##STR2## (wherein R 6 and R 7 are each a hydrogen atom or a lower alkyl group or, when taken together with the adjacent nitrogen atom, may form a heterocyclic group), R 2 represents an optionally substituted phenyl group or ##STR3## (wherein R 8 and R 9 are each a hydrogen atom or a lower alkyl group or, when taken together with the adjacent nitrogen atom, may form a heterocyclic group), R 4 represents a hydrogen atom, a lower alkyl group or an optionally substituted phenyl group, R 5 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a trifluoromethyl group, R 10 represents a hydrogen atom or an acyl group represented by R 3 CO- (wherein R 3 is a hydrogen atom, a lower alkyl group or an optionally substituted phenyl group) and Z represents two hydrogen atoms or an oxygen atom, provided that when Z is an oxygen atom and R 1 is ##STR4## R 10 can not be a hydrogen atom, and their acid addition salts, which are useful as central and autonomic nervous system depressants.

Inventors

  • 👤 Kikuo Sasajima
  • 👤 Masaru Nakao
  • 👤 Isamu Maruyama
  • 👤 Keiichi Ono
  • 👤 Shigenari Katayama
  • 👤 Shigeho Inaba
  • 👤 Hisao Yamamoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 03:14
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/60; C07D211/62; C07D211/64

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 2 words
γ-(4'-piperidino-4'-carbamoylpipridino)-2-acetamino-4-fluorobutyrophenone hydrochloride.
Claim 2
Dependent Claim 2 words
γ-(4'-piperidino-4'-carbamoylpipridino)-2-acetamino-4-fluorobutyrophenone hydrochloride.
Claim 3
Dependent Claim 2 words
γ-(4'-piperidino-4'-aminomethylpiperidino)-2-acetamino-4-fluorobutyrophenone hydrochloride.
Claim 4
Dependent Claim 2 words
γ-(4'-piperidino-4'-aminomethylpiperidino)-2-acetamino-4-fluorobutyrophenone hydrochloride.

References Cited (Backward Citations)

US3097209A Cited
US3041344A Cited
US3907812A Cited
US3799932A Cited
US3850935A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-02-22 1980-08-23 1981-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-02-22 1984-08-23 1985-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-02-22 1988-08-23 1989-02-22 $7700.00 Window Closed / Lapsed

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