Antibiotics TM-531 B and TM-531 C
US4359583A · kind A · utility
12Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1981 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Sep 15, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/55
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The novel antibiotics represented by the formula ##STR1## wherein either (a) R.sup.1 is hydroxy and R.sup.2 is hydrogen, or (b) R.sup.1 is methoxy and R.sup.2 is hydroxy, and the salt thereof, are produced by the cultivation of the organism Streptomyces hygroscopicus TM-531 under aerobic conditions. They are separated from coproduced Antibiotic TM-531 as disclosed in U.S. Pat. No. 4,269,971 and from each other by chromatography on silica gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.