Carbazomycin A is a bacterial metabolite that has been found in Streptomyces and has diverse biological activities.1,2It is active againstS. aureus,T. asteroides, andT. mentagrophytes(MIC = 12.5 μg ml for all), as well as the plant pathogenic fungusP. oryzae(MIC = 25 μg ml). Carbazomycin A is cytotoxic to MCF-7, KB, NCI H187, and Vero cells (IC50s = 26.2, 30.1, 18.4, and 32.6 μg ml, respectively).2 1.Sakano, K.-I., Ishimaru, K., and Nakamura, S.New antibiotics, carbazomycins A and B. I. Fermentation, extraction, purification and physico-chemical and biological propertiesJ Antibiot. (Tokyo)33(7)683-689(1980) 2.Intaraudom, C., Rachtawee, P., Suvannakad, R., et al.Antimalarial and antituberculosis substances from Streptomyces sp. BCC26924Tetrahedron67(39)7593-7597(2011)
Carbazomycin D is a bacterial metabolite that has been found inStreptomycesand has diverse biological activities.1,2It is active against the fungiT. asteroidesandT. mentagrophytes(MIC = 100 μg ml for both) and the bacteriumM. tuberculosis(IC50= 25 μg ml). Carbazomycin D is cytotoxic to MCF-7, KB, NCI H187, and Vero cells (IC50s = 21.3, 33.2, 12.9, and 34.3 μg ml, respectively).2 1.Naid, T., Kitahara, T., Kaneda, M., et al.Carbazomycins C, D, E and F, minor components of the carbazomycin complexJ. Antibiot. (Tokyo)40(2)157-164(1987) 2.Intaraudom, C., Rachtawee, P., Suvannakad, R., et al.Antimalarial and antituberculosis substances from Streptomyces sp. BCC26924Tetrahedron67(39)7593-7597(2011)