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US4018927A Expired / Lapsed US ⏱️ 0.0 years remaining

Treatment of proliferating skin diseases with papaverine alkaloids

Assignee: University of Michigan (System)
•
Filing: 1975-11-20
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Granted: 1977-04-19
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Expires: 1995-11-20
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Abstract

Abstract Pharmaceutical compositions for treatment of proliferating skin diseases, primarily psoriasis, but also atopic dermatitis, acne squamous carcinoma of the epidermis, ichthyosis, keratosis. The composition comprises a pharmaceutical carrier with a papaverine alkaloid as the active ingredient of the formula <IMAGE> wherein X is carbonyl or (CH2)n and n is zero or one R1 is hydroxy, methoxy, ethoxy or ethyl R2, R3, and R4 are hydrogen, hydroxy, methoxy or ethoxy R5 is hydrogen or ethoxy R6 is hydrogen or methyl AND R7 is nothing, hydrogen or methyl and provided that when R7 is hydrogen or methyl, the double bonds indicated in the A ring are saturated, including the pharmacologically acceptable acid addition salts thereof.

Inventors

  • 👤 John J. Voorhees

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 01:25
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/16; C07H19/20

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 115 words
A process for treating proliferating skin diseases comprising the administration of an effective amount of a compound of the formula: ##STR2## wherein X is carbonyl or (CH 2 ) n and n is zero or one; R 1 is hydroxy, methoxy, ethoxy or ethyl; R 2 , R 3 , and R 4 are hydrogen, hydroxy, methoxy or ethoxy; R 5 is hydrogen or ethoxy; R 6 is hydrogen or methyl; and R 7 is nothing, hydrogen or methyl and provided that when R 7 is hydrogen or methyl, the double bonds indicated in the A ring are saturated, in association with a pharmaceutical carrier to a human or animal having a proliferating skin disease.
Claim 2
Dependent Claim 115 words
A process for treating proliferating skin diseases comprising the administration of an effective amount of a compound of the formula: ##STR2## wherein X is carbonyl or (CH 2 ) n and n is zero or one; R 1 is hydroxy, methoxy, ethoxy or ethyl; R 2 , R 3 , and R 4 are hydrogen, hydroxy, methoxy or ethoxy; R 5 is hydrogen or ethoxy; R 6 is hydrogen or methyl; and R 7 is nothing, hydrogen or methyl and provided that when R 7 is hydrogen or methyl, the double bonds indicated in the A ring are saturated, in association with a pharmaceutical carrier to a human or animal having a proliferating skin disease.
Claim 3
Dependent Claim 13 words
A process according to claim 1 wherein the administration is by topical application.
Claim 4
Dependent Claim 12 words
A process according to claim 1 wherein the administration is by injection.
Claim 5
Dependent Claim 20 words
A process according to claim 1 wherein the compound administered is papaverine or a pharmacologically acceptable acid addition salt thereof.

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) 1980-04-18 1980-10-18 1981-04-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-04-18 1984-10-18 1985-04-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-04-18 1988-10-18 1989-04-19 $7700.00 Window Closed / Lapsed

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