abstract |
(57) [Summary] The present invention provides an antibiotic A-39893 represented by the following general formula (I) or a salt thereof: (In the formula, R 1 represents mannosyl glucose, R 2 represents mannose, and R 3 represents ristosamine.). [Effect] A-39893 of the present invention is effective as an antibiotic against gram-positive bacteria such as Staphylococcus aureus and Staphylococcus epidermides containing MRSA. |