摘要:
As new antibiotics are obtained delaminomycins A, B and C having a formula (I) or (I') shown below, or salts thereof. Delaminomycins preferentially inhibit T cells and are useful as immunosuppressants, antineoplastic agents and antibacterial agents. ##STR1## wherein X is a hydroxyl group for delaminomycin A, a methoxy group for delaminomycin B and a hydrogen atom for delaminomycin C.
摘要:
As a new antibiotic is provided a compound, now nominated as MI43-37F11 substance, which has formula ##STR1## This MI43-37F11 substance has an antitumor activity, an activity to enhance the production of interleukin-1 in vivo in a mammalian, and an activity to activate a macrophage in vivo in a mammalian. MI43-37F11 substance may be produced by cultivation of Streptoverticillium eurocidicum MI43-37F11 strain identified as FERM BP-2783.
摘要:
A new antibiotic, named Conagenin, is provided which can exhibit useful carcinostatic or antitumor activities on carcinomas and tumors, particularly malignant tumors, of mammalian animals including man. Conagenin can be produced by fermentation of microorganisms of genus Streptomyces, typically Streptomyces roseosporus MI696-AF3 strain identified under the deposit number FERM BP-2738. Conagenin has formula (I) and is useful for medicinal purposes, particularly as carcinostatic agent or antitumor agent for inhibiting carcinomas and malignant tumors of mammalian animals, including man.
摘要:
Disclosed is a novel physiologically active substance, MH435, represented by the formula: ##STR1## wherein R represents either of the following groups A and B A: --CH.dbd.CH--NHCHOB: --CH.sub.2 --CH.sub.2 --NHCHO.The substance MH435 has an inhibitory activity against tyrosine specific protein kinase, and the 50% inhibitory concentrations of the substances MH435-A and MH435-B are respectively 0.55 .mu.g/ml and 6.0 .mu.g/ml.
摘要:
There are disclosed two new antibiotics formerly denominated MC916-A and MC916-B and now called neothramycin A and neothramycin B which are potent inhibitors of the growth of leukemia cells, e.g. Leukema L-1210 cells in mice. They are produced by controlled fermentation of Streptomyces FERM-P 2452 (A.T.C.C. 31123).
摘要:
A novel anthracycline antibiotic complex designated herein as baumycin complex is produced by fermentation of a baumycin-producing strain of Streptomyces, e.g. Streptomyces coeruleorubidus ME 130-A4 (FERM-P3540, ATCC 31276). The complex and four bioactive components thereof designated baumycin A.sub.1, A.sub.2, B.sub.1 and B.sub.2 are useful as antibacterial and antitumor agents.
摘要翻译:本文称为鲍曼霉素复合物的新型蒽环类抗生素复合物是通过发酵生产巴霉素的链霉菌菌株,例如, Streptomyces coeruleorubidus ME 130-A4(FERM-P3540,ATCC 31276)。 其中称为baumycin A1,A2,B1和B2的复合物和四种生物活性成分可用作抗细菌剂和抗肿瘤剂。
摘要:
A novel anthracycline antibiotic complex designated herein as baumycin complex is produced by fermentation of a baumycin-producing strain of Streptomyces, e.g. Streptomyces coeruleorubidus ME 130-A4 (FERM-P3540, ATCC 31276). The complex and four bioactive components thereof designated baumycin A.sub.1, A.sub.2, B.sub.1 and B.sub.2 are useful as antibacterial and antitumor agents.
摘要翻译:本文称为鲍曼霉素复合物的新型蒽环类抗生素复合物是通过发酵生产巴霉素的链霉菌菌株,例如, Streptomyces coeruleorubidus ME 130-A4(FERM-P3540,ATCC 31276)。 其中称为baumycin A1,A2,B1和B2的复合物和四种生物活性成分可用作抗细菌剂和抗肿瘤剂。
摘要:
There are disclosed two new antibiotics formerly denominated MC916-A and MC916-B and now called neothramycin A and neothramycin B which are potent inhibitors of the growth of leukemia cells, e.g. Leukemia L-1210 cells in mice. They are produced by controlled fermentation of Streptomyces FERM-P 2452 (A.T.C.C. 31123).
摘要:
New antitumor agents designated rhodirubin A and B, which are anthracycline glycosides and inhibit the growth of gram-positive bacteria and mammalian tumors, are produced by fermentation of rhodirubin-producing strains of Streptomyces, e.g. Streptomyces sp. ME 505-HEI (ATCC 31273).
摘要翻译:通过发酵罗丹明生产菌株Streptomyces,例如,通过发酵来产生称为罗丹霉素A和B的新型抗肿瘤药物,其是蒽环类苷并抑制革兰氏阳性细菌和哺乳动物肿瘤的生长。 链霉菌属 ME 505-HEI(ATCC 31273)。
摘要:
New antitumor agents designated rhodirubin A and B, which are anthracycline glycosides and inhibit the growth of gram-positive bacteria and mammalian tumors, are produced by fermentation of rhodirubin-producing strains of Streptomyces, e.g. Streptomyces sp. ME 505-HEI (ATCC 31273).
摘要翻译:通过发酵罗丹明生产菌株Streptomyces,例如,通过发酵来产生称为罗丹霉素A和B的新型抗肿瘤药物,其是蒽环类苷并抑制革兰氏阳性细菌和哺乳动物肿瘤的生长。 链霉菌属 ME 505-HEI(ATCC 31273)。