New funginert antibiotic dekishiroshirubenanomaishin B and the manufacturing method

摘要

NEW MATERIAL:A compound expressed by the formula, salts or esters thereof. In addition, dexylosylbenanomicin B hydrochloride has the following physico- chemical properties. Reddish brown powder. Molecular formula; C34H34N2 O14.HCl. Mass spectrum (FD-MS); m/z 696(M+2)+. Melting point; 180 deg.C (decomposition). Specific rotatory power; [alpha] =+396 deg. (c=0.05, 0.05N HCl). Solubility; slightly soluble in chloroform, ethyl acetate and acetone and soluble in water, methanol, dimethyl sulfoxide and DMF. An amphoteric substance, etc. USE:An antifungal agent. PREPARATION:An antibiotic substance benanomicin B is chemically converted.