摘要:
A novel cystacycline derivative which has an excellent effect of promoting the differentiation of neurons and is useful as a remedy for central nervous system disorders, a remedy for peripheral nerve disorders, etc.
摘要:
Novel antibiotics NK374186A, NK374186B, NK374186B3 and NK374186C3 having antibacterial, antineoplastic, immunomodulation, and liver regeneration promoting activities are provided.NK374186A, NK374186B, NK374186B3 and NK374186C3 are obtained by culturing NK374186 strain (FERM P-12285) (FERM-BP 3870) belonging to the genus Penicillium. NK374186A is a compound represented by a rational formula of C.sub.34 H.sub.61 N.sub.3 O.sub.12 S.sub.9 and having a molecular weight of M+ 735 (FD-MS m/z); NK374186B is a compound represented by a rational formula of C.sub.34 H.sub.61 N.sub.3 O.sub.9 and having a molecular weight of M+ 655 (FD-MS m/z); NK374186B3 is a compound represented by a rational formula of C.sub.34 H.sub.61 N.sub.3 O.sub.9 and having a molecular weight of M+ 655 (FD-MS m/z); and NK374186C3 is a compound represented by a rational formula of C.sub.32 H.sub.59 N.sub.3 O.sub.7 and having a molecular weight of M+ 597 (FD-MS m/z).
摘要翻译:提供具有抗菌,抗肿瘤,免疫调节和肝再生促进活性的新型抗生素NK374186A,NK374186B,NK374186B3和NK374186C3。 通过培养属于青霉属的NK374186菌株(FERM P-12285)(FERM-BP 3870)获得NK374186A,NK374186B,NK374186B3和NK374186C3。 NK374186A是由C34H61N3O12S9的合理式表示的化合物,其分子量为M + 735(FD-MS m / z); NK374186B是由合理式C34H61N3O9表示的化合物,分子量为M + 655(FD-MS m / z); NK374186B3是由合成式C34H61N3O9表示的化合物,其分子量为M + 655(FD-MS m / z); 并且NK374186C3是由合成式C32H59N3O7表示的化合物,其分子量为M + 597(FD-MS m / z)。
摘要:
This invention relates to an antibiotic NK86-0279 of the formula: ##STR1## which exhibits antifungal, antitumor, vascularizations-inhibitory and insecticidal activities.
摘要:
This invention relates to an antibiotic NK130119 of the formula: ##STR1## which exhibits antifungal, antitumor, vascularizations-inhibitory and insecticidal activities.
摘要:
Plipastatin represented by the general formula ##STR1## wherein R.sub.1 is --C.sub.13 H.sub.27 or --C.sub.14 H.sub.29 ; and R.sub.2 is Ala or Val, or salts thereof, which is prepared by culturing a Plipastatin-producing strain belonging to the genus Bacillus to produce and accumulate Plipastatin in a cultured broth and then isolating Plipastatin from the cultured broth. Plipastatin exhibits an enzyme inhibiting activity against phospholipase A.sub.2, C and D and which will be useful as an immunosuppressive agent or as a type I anti-allergic agent.