Antibiotic substances and processes for production thereof

An SF-2080A substance having the following properties:

• Elemental Analysis (by weight):
• C, 27.06%;
• H, 1.17%;
• N, 14.84%;
• Cl, 39.23%;
• Molecular Weight:
• 181 (according to mass spectrum);
• Molecular Formula:
• C.sub.4 H.sub.2 N.sub.2 O.sub.2 Cl.sub.2 ;
• Melting Point:
• 205.degree. to 207.degree. C. (with decomposition);
• Optical Rotation:
• [.alpha]sub.D.sup.25 =0 (C=0.5, methanol);
• Ultraviolet Absorption Spectrum:
• as shown in FIG. 1:
• The absorption maximums are 269 and 320 nm in a methanol solution, 271 and 320 nm in a 0.01-N hydrochloric acid methanol solution, and 220 and 325 nm in a 0.01-N sodium hydroxide methanol solution;
• Infrared Absorption Spectrum:
• as shown in FIG. 2:
• The absorption bands, as determined using the potassium bromide tablet method, are 3270, 3150, 1570, 1510, 1480, 1400, 1360, 1280, 1200, 1140, 1070, 960, 830, 820, 750 cm.sup.-1 ;
• Color Reactions:
• positive for the iodine reaction and Lemieux reaction, and negative for the ninhydrin reaction and ferric chloride reaction;
• Appearance and Color:
• light brown to yellow needle-shaped crystals;
• Electrical Properties:
• behaves as neutral substance on High Voltage Paper Electrophoresis;
• Rf Values on Thin Layer Chromatography (silica gel):
• 0.68 (benzene/acetone=2:1 by volume), 0.73 (chloroform/methanol=10:1 by volume);
• Solubility:
• easily soluble in methanol and acetone, soluble in chloroform, and sparingly soluble in water and n-hexane;
• and ##STR5##