摘要:
Physiologically active substance FA-5859 and its deacetyl compound represented by the formula: ##STR1## wherein R.sub.1 is a hydrogen atom or an acetyl group, are produced by a cultivation of a microorganism of the genus Emericella or Aspergillus (compound wherein R.sub.1 is an acetyl group) or by a method of chemical synthesis (compound wherein R.sub.1 is a hydrogen atom or an acetyl group).Said compounds or a salt thereof have excellent fatty acid degradation inhibiting activity and is useful as an antidiabetic agent in mammalian animals or as a biochemical reagent for studies on fatty acid metabolism.
摘要:
Novel carbapenem compounds, which are shown by the formula (I): ##STR1## wherein R is --SO.sub.3 H or hydrogen, or a physiologically acceptable salt thereof, are useful as a bactericide or disinfectant, and also produce a synergistic effect with penicillin and/or cephalosporin antibiotic agents.The compound of the formula (I) can be produced by subjecting to reduction reaction a compound of the formula: ##STR2## wherein R has the same meaning as defined above, or a salt thereof.
摘要:
Novel antibiotics C-19393S.sub.2 and H.sub.2, which are produced by cultivating a microorganism belonging to the genus Streptomyces, are useful as a bactericide or disinfectant, and particularly, Antibiotic C-19393S.sub.2 produces a synergistic effect with penicillin and/or cephalosporin antibiotic agents.
摘要:
Compounds of the formula (I): ##STR1## wherein R is an ethyl group which may optionally be substituted and n is 0 or 1, or a physiologically acceptable salt thereof, can be produced by subjecting to isomerization a compound of the formula (II): ##STR2## wherein R and n have the same meaning as defined above, or a salt thereof, by using a quaternary ammonium halide and are useful as a bactericide or disinfectant, and also a synergistic effect with penicillin and/or cephalosporin antibiotic agents.Among the compounds of the formula (I), compounds shown by the formula: ##STR3## wherein R.sub.6 is H or --SO.sub.3 H, as well as salts thereof, are novel.
摘要:
A novel antibiotic C-14482 A.sub.1 is produced by cultivating a microorganism belonging to the genus Nocardia and capable of producing Antibiotic C-14482 A.sub.1 is a culture medium, whereby Antibiotic C-14482 A.sub.1 is elaborated and accumulated in the culture medium and recovering the same antibiotic.Antibiotic C-14482 A.sub.1 is useful as a germicide or disinfectant.
摘要:
The present invention relates to antibiotics C-14919 E-1 and E-2 produced by cultivating a microorganism of the genus Nocardia. These antibiotics display a wide activity against e.g. Gram-positive bacteria, fungi and yeast and are useful as germicides or disinfectants.
摘要:
Novel demethylmaytansinoids representable by the formula: ##STR1## (wherein X is Cl or H; R.sub.1 is H or acyl group) are produced from maytansinoids by means of enzymic transformation. The demethylmaytansinoids are useful as antifungal, antiprotozoal or antitumor agents.
摘要翻译:可以通过酶转化由美登木素生成的新型脱甲基麦芽木淀粉,由下式表示:其中X为Cl或H; R 1为H或酰基。 脱甲基麦芽类生物素可用作抗真菌剂,抗原生动物剂或抗肿瘤剂。
摘要:
The present invention relates to a method of producing the antibiotics C-14919 E-1 and/or E-2 by cultivating an antibiotic C-14919 E-1 and/or E-2 producing strain of the genus Nocardia in a culture medium and accumulating said antibiotics. These antibiotics have a wide range of antibiotic activity and they are useful as germicides or disinfectants.
摘要:
A novel Antibiotic G-6302 is produced by cultivating a microorganism belonging to the genus Pseudomonas and being capable of producing Antibiotic G-6302 in a culture medium to have Antibiotic G-6302 elaborated and accumulated in the cultured broth and recovering the antibiotic.Antibiotic G-6302 is useful as a germicide or disinfectant.