US3758455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reof mycophenolic acid glucuronide and the process for the preparation the
Assignee: Chugai Pharmaceutical Co Ltd
•
Filing: 1971-05-04
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Granted: 1973-09-11
•
Expires: 1991-05-04
Abstract
Abstract A NOVEL COMPOUND 6 - (4''-O-(B-D-GLUCOPYRANURONOSIDO) - 6'' - METHOXY - 7'' - METHYL-3''-OXOPHTHALAYL-(5''))-4METHYL-4-HEXENOIC ACID WHICH MAY BE REFERRED TO AS MYCOPHENOLIC ACID GLUCURONIDE HAVING IMPROVED ANTITUMOR ACTIVITY AGAINST MOUSE MYELOID LEUKEMIA X-5563 AND CHEMOTHERAPEUTIC INDEX IS DISCLOSED. THE COMPOUND IS PREPARED BY REACTING A MYCOPHENOLIC ACID ALKYL ESTER OR A SALT THEREOF WITH A LOWER-ALKYL-(2,3,4-TRI-O-ACETYL-A-DGLUOCOPYRANOSYL HALIDE)-URONATE FOLLOWED BY HYDROLYSIS.
Inventors
- 👤 M Arita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:44
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04
Claims Analysis
Total Claims: 0
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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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |