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US4376858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-4-Diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline salts
Assignee: Warner Lambert Co LLC
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Filing: 1982-01-29
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Granted: 1983-03-15
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Expires: 2002-01-29
Abstract
Abstract 2,4-Diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline salts, pharmaceutical compositions containing said salts, methods of treating malaria, and bacterial infections employing said salts and compositions and methods for producing said salts.
Inventors
- 👤 Norman L. Colbry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:08
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/70; C07D239/72; C07D239/95; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
A compound of the formula ##STR3## wherein Z is 2-hydroxyethanesulfonic acid or glucuronic acid.
Claim 2
Dependent Claim
14 words
A compound of the formula ##STR3## wherein Z is 2-hydroxyethanesulfonic acid or glucuronic acid.
Claim 3
Dependent Claim
10 words
The compound of claim 1 having the name 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline monoisethionate.
Claim 4
Dependent Claim
10 words
The compound of claim 1 having the name 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline glucuronate.
Claim 5
Dependent Claim
9 words
The compound of claim 2 being in crystalline form.
Claim 6
Dependent Claim
9 words
The compound of claim 3 being in powdery form.
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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |