Antibiotics RK-1061 and process for preparing the same

Details Antibiotics RK-1061 and process for preparing the same Antibiotics RK-1061 and process for preparing the same

2005-01-18

2005-01-18

Saucier, Sandra E. (Department: 1651)

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

Reexamination Certificate

active

06844183

ABSTRACT:
Antibiotics RK-1061s having a novel chemical structure and a method of production thereof.They have a structural formula represented by general formula(I) wherein A represents R1or R1CH(OR2)CH2. R2represents 3-methylglutaric acid residue and R3represents a sulfate group or a hydrogen atom. The process comprises culturing a ray fungus belonging to the genusStreptomycesand isolating RK-1061s from the culture.Streptomycessp. SN-1061Ms (FERM BP-5800) is capable of stably producing RK-1061 at a high productivity.

REFERENCES:
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patent: 2-306992 (1990-12-01), None
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