Patent US4426525A successfully refreshed from Google Patents.
US4426525A
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Certain phosphoric acid ester derivatives of 1,3-dioxy propane
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1981-10-15
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Granted: 1984-01-17
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Expires: 2001-10-15
Abstract
Abstract Tridecyloxy- or tetradecyloxy-propane derivatives of the formula: ##STR1## wherein R 1 is tridecyl or tetradecyl, R 2 is hydrogen or --OCH 3 , and R 3 , R 4 and R 5 independently represent hydrogen or C 1-3 alkyl, or ##STR2## represents cyclic ammonio, and their salts, have inhibitory activity to multiplication of tumor cells and antimicrobial activity.
Inventors
- 👤 Motoo Hozumi
- 👤 Susumu Tsushima
- 👤 Yoshio Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; A; A01; A01N; A01N57/00; A01N57/10; A01N57/12; A01N57/16; A61; A61P; A61P35/00; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07F9/091; C07F9/547; C07F9/553; C07F9/576; C07F9/58
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
34 words
A compound of the formula ##STR34## wherein R 1 is tridecyl or tetradecyl, R 2 is hydrogen or --OCH 3 , and ##STR35## is pyridinio, oxazolio or thiazolio or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
34 words
A compound of the formula ##STR34## wherein R 1 is tridecyl or tetradecyl, R 2 is hydrogen or --OCH 3 , and ##STR35## is pyridinio, oxazolio or thiazolio or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
31 words
A compound of the formula ##STR36## wherein R 1 is tridecyl or tetradecyl, R 2 is hydrogen or --OCH 3 , and ##STR37## is pyridinio or a pharmaceutically acceptable salt thereof.
Claim 4
Dependent Claim
31 words
A compound of the formula ##STR36## wherein R 1 is tridecyl or tetradecyl, R 2 is hydrogen or --OCH 3 , and ##STR37## is pyridinio or a pharmaceutically acceptable salt thereof.
Claim 5
Dependent Claim
31 words
A compound of the formula ##STR38## wherein R 1 is tridecyl or tetradecyl R 2 is hydrogen or --OCH 3 , and ##STR39## is oxazolio, or a pharmaceutically acceptable salt thereof.
Claim 6
Dependent Claim
31 words
A compound of the formula ##STR38## wherein R 1 is tridecyl or tetradecyl R 2 is hydrogen or --OCH 3 , and ##STR39## is oxazolio, or a pharmaceutically acceptable salt thereof.
Claim 7
Dependent Claim
7 words
The compound which is (3-tetradecyloxy-2-methoxy)propyl 2-pyridinioethyl phosphate.
Claim 8
Dependent Claim
7 words
The compound which is (3-tetradecyloxy-2-methoxy)propyl 2-pyridinioethyl phosphate.
Claim 9
Dependent Claim
7 words
The compound which is (3-tridecyloxy-2-methoxy)propyl 2-pyridinioethyl phosphate.
Claim 10
Dependent Claim
7 words
The compound which is (3-tridecyloxy-2-methoxy)propyl 2-pyridinioethyl phosphate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |