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US3959283A Expired / Lapsed US ⏱️ 0.0 years remaining

Amino-derivatives of 1,4-benzodioxan

Assignee: Cephalon France SAS
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Filing: 1975-01-17
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Granted: 1976-05-25
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Expires: 1995-01-17
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Abstract

Abstract 1-[2-(1,4-Benzodioxanyl)methyl]-4-(2-hydroxyethyl)-piperazine hemifumarate and the related compounds of formula: ##SPC1## In which R is hydrogen or alkyl; and A is --CH(CH 3 )COOC 2 H 5 , --CH 2 CH 2 O(C 6 H 4 ) (CH 3 ) 2 , --CH 2 CH(OH)Ph or --CH 2 CO(C 6 H 3 ) (OCH 3 ) 3 or A is --Z--OR 1 , --CH.sub. 2 CHOR" 1 CH.sub. 2 OR' 1 , --Z--CO--B or amidino, where Z is a linear or branched divalent hydrocarbon chain of 1 to 3 carbon atoms, R' 1 and R" 1 , which may be indentical or different, are each hydrogen, alkyl, or acyl, B is OH, alkoxy, or a secondary, tertiary or N-heterocyclic amino radical, and R 1 is alkyl, acyl other than nicotinoyl or 3,4,5-trimethoxy-benzoyl, or, when R is other than hydrogen, hydrogen, and its acid addition salts, are useful in therapy as vasodilators and α-blocking agents.

Inventors

  • 👤 Louis Lafon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 00:19
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/335; A61K31/395; A61K31/495; A61P; A61P25/00; A61P25/02; A61P9/00; A61P9/08; A61P9/10; C; C07; C07D; C07D405/00; C07D405/02; C07D405/06

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 36 words
A compound of formula: ##SPC20## in which R is hydrogen or alkyl of 1 to 5 carbon atoms; and A is --CH(CH 3 )COOC 2 H 5 , ##SPC21## or a non-toxic acid addition salt thereof.
Claim 2
Dependent Claim 36 words
A compound of formula: ##SPC20## in which R is hydrogen or alkyl of 1 to 5 carbon atoms; and A is --CH(CH 3 )COOC 2 H 5 , ##SPC21## or a non-toxic acid addition salt thereof.
Claim 3
Dependent Claim 16 words
A compound as claimed in claim 1 which is 1-[2-(1,4-benzodioxanyl)-methyl]-4-(α-carbethoxy-ethyl)-piperazine or a non-toxic addition salt thereof.
Claim 4
Dependent Claim 16 words
A compound as claimed in claim 1 which is 1-[2-(1,4-benzodioxanyl)-methyl]-4-[2-(3,5-dimethoxyphenoxy)-ethyl]-piperazine or a non-toxic addition salt thereof.
Claim 5
Dependent Claim 17 words
A compound as claimed in claim 1 which is 1-[2-(1,4-benzodioxanyl)-methyl]-4-[(2-hydroxy-2-phenyl)-ethyl]-piperazine or a non-toxic acid addition salt thereof.
Claim 6
Dependent Claim 17 words
A compound as claimed in claim 1 which is 1-[2-(1,4-benzodioxanyl)-methyl]-4-(2,4,6-trimethoxyphenacyl)-piperazine or a non-toxic acid addition salt thereof.
Claim 7
Dependent Claim 33 words
A pharmaceutical composition consisting essentially of an effective amount of at least one compound as claimed in claim 1, or a non-toxic acid addition salt thereof, and a pharamceutically acceptable carrier or diluent.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-05-25 1979-11-24 1980-05-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-05-25 1983-11-24 1984-05-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-05-25 1987-11-24 1988-05-25 $7700.00 Window Closed / Lapsed

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