Antitumor antibiotics
US5643871A · kind A · utility
0Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/29
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to novel antitumor depsipeptides produced by Micromonospora strain 39500, ATCC 55011, and having the structural formula ##STR1## wherein R.sub.1 is 2-methylpropanoyl, and R.sub.2 is 2-methylppropanoyl, propanoyl or acetyl; or R.sub.1 is 3-methylbutanoyl, and R.sub.2 is 2-methylpropanoyl or 3-methylbutanoyl; or R.sub.1 is propanoyl, and R.sub.2 is acetyl or propanoyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.