Patent US3910938A successfully refreshed from Google Patents.
US3910938A
Expired / Lapsed
US
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Berbine derivatives
Assignee: Kanebo Ltd
•
Filing: 1974-01-16
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Granted: 1975-10-07
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Expires: 1994-01-16
Abstract
Abstract Novel berbine derivatives of the formula: WHEREIN R1 and R2 represent each a methoxy group or jointly a methylenedioxy group; R3 and R4 represent each a hydrogen atom or jointly a direct bond; R5 and R6 represent, the same or different, a hydrogen atom, a lower alkyl or a phenyl group; R7 represents a hydrogen atom or a lower alkyl group; A represents a pharmaceutically acceptable anion. The compounds inhibit the growth of transplanted sarcoma strain in mice.
Inventors
- 👤 Tetsuro Ikekawa
- 👤 Fumitake Shimada
- 👤 Yoshimi Okazaki
- 👤 Koichi Tachibana
- 👤 Norio Aikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:50
CPC Classifications
C; C07; C07D; C07D455/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
6 words
A BERBINE DERIVATIVE OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A BERBINE DERIVATIVE OF THE FORMULA:
Claim 3
Dependent Claim
9 words
As the compound according to claim 1, 9-methylcarbamoylberberrubine chloride.
Claim 4
Dependent Claim
9 words
As the compound according to claim 1, 9-dimethylcarbamoylberberrubine chloride.
Claim 5
Dependent Claim
9 words
As the compound according to claim 1, 9-diethylcarbamoylberberrubine chloride.
Claim 6
Dependent Claim
9 words
As the compound according to claim 1, 9-diphenylcarbamoylberberrubine chloride.
Claim 7
Dependent Claim
10 words
As the compound according to claim 1, 9-(4''-chlorophenylcarbamoyl) berberrubine anionide.
Claim 8
Dependent Claim
9 words
As thE compound according to claim 1, 9-methylcarbamoyl-13-methylberberrubine chloride.
Claim 9
Dependent Claim
9 words
As the compound according to claim 1, 9-phenylcarbamoyl-13-methylberberrubine chloride.
Claim 10
Dependent Claim
9 words
As the compound according to claim 1, 9-diethylcarbamoyl-13-methylberberrubine chloride.
Claim 11
Dependent Claim
9 words
As the compound according to claim 1, 9-methylcarbamoylpalmatrubine chloride.
Claim 12
Dependent Claim
9 words
As the compound according to claim 1, 9-dimethylcarbamoylpalmatrubine chloride.
Claim 13
Dependent Claim
9 words
As the compound according to claim 1, 9-diethylcarbamoylpalmatrubine chloride.
Claim 14
Dependent Claim
9 words
As the compound according to claim 1, 9-diethylcarbamoylpalmatrubine chloride.
Claim 15
Dependent Claim
9 words
As the compound according to claim 1, 9-diphenylcarbamoylpalmatrubine chloride.
Claim 16
Dependent Claim
9 words
As the compound according to claim 1, 9-methylcarbamoyl-13-methylpalmatrubine chloride.
Claim 17
Dependent Claim
9 words
As the compound according to claim 1, 9-diphenylcarbamoyl-13-ethylpalmatrubine chloride.
Claim 18
Dependent Claim
10 words
As the compound according to claim 1, 9-(4''-chlorophenylcarbamoyl) palmatrubine chloride
Claim 19
Dependent Claim
9 words
As the compound according to claim 1, 9-(4''-chlorophenylcarbamoyl)-13-methylpalmatrubine chloride.
Claim 20
Dependent Claim
9 words
As the compound according to claim 1, 9-methylcarbamoyl-5,6-dehydroberberrubine anionide.
Claim 21
Dependent Claim
9 words
As the compound according to claim 1, 9-diphenylcarbamoyl-5,6-dehydro-13-methylpalmatrubine chloride.
Claim 22
Dependent Claim
9 words
As the compound according to claim 1, 9-phenylcarbamoyl-5,6-dehydropalmatrubine chloride.
Claim 23
Dependent Claim
14 words
A berbine derivative according to claim 1, wherein R1 and R2 are each methoxy.
Claim 24
Dependent Claim
14 words
A berbine derivative according to claim 1, wherein R1 and R2 jointly form methylenedioxy.
Claim 25
Dependent Claim
16 words
A berbine derivative according to claim 1, wherein R3 and R4 are each a hydrogen atom.
Claim 26
Dependent Claim
13 words
A berbine derivative according to claim 1, wherein each lower alkyl is methyl.
References Cited (Backward Citations)
US3590074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |