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US4603219A
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1,3-dibenzyloxy-2-acetoxymethoxypropane, intermediate for 9-(1,3-dihydroxy-2-propoxymethyl)guanine
Assignee: Hoffmann La Roche Inc
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Filing: 1984-10-29
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Granted: 1986-07-29
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Expires: 2004-10-29
Abstract
Abstract The compounds 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents. The compound 1,3-dibenzyloxy-2-acetyloxy-methoxypropane is useful as an intermediate for the preparation of 9-(1,3-dihydroxy-2-propoxymethyl)guanine.
Inventors
- 👤 Julien P. H. Verheyden
- 👤 John C. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
C; C07; C07D; C07D473/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
The compound of the formula ##STR4##
Claim 2
Dependent Claim
6 words
The compound of the formula ##STR4##
References Cited (Backward Citations)
US4294831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |