WB2663 substances and method for their production
US5545542A · kind A · utility
12Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/874
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
WB2663 substance-producing bacteria belonging to the genus Pseudomonas are cultured to produce a physiologically active substance, from which are isolated neutral substances WB2663A, WB2663B and WB2663C having respective specific rotations EQU [.alpha.].sub.D.sup.23 : -36.degree. (C=0.5, CH.sub.2 Cl.sub.2), EQU [.alpha.].sub.D.sup.23 : -12.degree. (C=0.5, CH.sub.2 Cl.sub.2), EQU [.alpha.].sub.D.sup.23 : -9.degree. (C=0.5, CH.sub.2 Cl.sub.2), These substances have an excellent antitumor effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.