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US3665018A Expired / Lapsed US ⏱️ 0.0 years remaining

Naphthacene derivatives

Assignee: Rhone Poulenc SA
•
Filing: 1969-07-14
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Granted: 1972-05-23
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Expires: 1989-07-14
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Abstract

Abstract New derivatives of 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-9acetyl-5,7,8,9,10,12 -hexahydronaphthacene with a substituent -OCO-R in the 7-position, wherein R represents cyclohexyl substituted by an aminomethyl group, or by at least one amino group, monoalkylamino group of which the alkyl radical contains one to five carbon atoms, dialkylamino group of which each alkyl radical contains one to five carbon atoms, or sulphomethylamino group, or R represents a said substituted-cyclohexyl group also substituted by at least one hydroxy group or alkanoyloxy group of which the alkanoyl radical contains one to five carbon atoms, or R represents a phenylalkyl group of which the alkyl radical contains one to four carbon atoms and is substituted by a bis(2chlorethyl)amino group, or a piperidyl group, and non-toxic salts thereof, have useful properties against leukaemia L1210 in mice, combined with a low toxicity.

Inventors

  • 👤 Georges Jolles

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 22:30
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/24; C07H15/252

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 33 words
A naphthacene compound according to claim 1 wherein R is cyclohexyl substituted by aminomethyl or amino, or phenylalkyl of which the alkyl radical is of one to four carbon atoms substituted by bis(2-chloro-ethyl)amino.
Claim 2
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(3-amino-cyclohexylcarbonyloxy)-9 -acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 3
Dependent Claim 19 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-diOxo-6,9,11-trihydroxy-7-(2-bis(2-chlorethyl)amino-3 -phenylpropionyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene and acid addition and quaternary ammonium salts thereof.
Claim 4
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(4-amino-cyclohexylcarbonyloxy)-9 -acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 5
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(2-amino-cyclohexylcarbonyloxy)-9 -acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 6
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(4-aminomethyl -cyclohexylcarbonyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 7
Dependent Claim 20 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(3-dimethylamino -cyclohexylcarbonyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition and quaternary ammonium salts thereof.
Claim 8
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(3-amino-4-acetoxy -cyclohexylcarbonyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 9
Dependent Claim 17 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(3-amino-4-hydroxy -cyclohexylcarbonyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene, and non-toxic acid addition salts thereof.
Claim 10
Dependent Claim 23 words
The naphthacene derivative according to claim 1 which is 4-methoxy-5,12-dioxo-6,9,11-trihydroxy-7-(3-sulphomethylamino -cyclohexylcarbonyloxy)-9-acetyl-5,7,8,9,10,12-hexahydronaphthacene, and its alkali metal salts and salts with a non-toxic nitrogen-containing base.

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) 1975-05-23 1975-11-22 1976-05-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-23 1979-11-22 1980-05-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-23 1983-11-22 1984-05-23 $7700.00 Window Closed / Lapsed

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