7 - (alpha-(3 - guanyl-1-ureido)aryl-acetamido) cephalosporanic acids and derivatives thereof
Abstract
Abstract 7-(A-(3-GUANYL-1-UREIDO)PHENYLACETAMIDO)- AND 7-(A(3 - GUANYL - 1 - UREIDO)THIENYLACETAMIDO)CEPHALOSPORANIC ACIDS AND THE CORRESPONDING BETAINES AND DESACETOXY DERIVATIVES ARE VALUABLE AS ANTIBACTERIAL AGENTS, AS NUTRITIONAL SUPPLEMENTS IN ANIMAL FEEDS AND AS THEAPEUTIC AGENTS IN POULTRY AND ANIMALS, INCLUDING MAN, AND ARE ESPECIALLY USEFUL IN THE TREATMENT OF INFECTIOUS DISEASES CAUSED BY GRAM-POSITIVE AND GRAM-NEGATIVE BACTERIA, MOST PARTICULARLY THOSE CAUSED BY THE PSEUDOMONAS GENUS. 7 - (D - A - (3-GUANYL-1-UREIDO)PHENYLACETAMIDO)CEPHALOSPORANIC ACID, A PREFERRED EMBODIMENT OF THE INVENTION, IS PREPARED BY THE TREATMENT OF 7-(D-A-AMINO-PHENYLACETAMIDO)CEPHALOSPORANIC ACID WITH A GUANYLCARBAMOYLATING AGENT.
Inventors
- 👤 Donald Neil Mcgregor
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |