Sparsomycin analogs. III. Synthesis and biological activities of (E)-.BETA.-(6-methyluracil-5-yl)acrylic acid derivatives.
作者:SHOICHI KANATOMO、SOTOO NAGAI、KAZUHIRO OHKI、TETSUKO HASE、CHIAKI NOMURA、EIICHI OKEZAKI
DOI:10.1248/cpb.32.4625
日期:——
In order to study the structure-activity relationship of sparsomycin, an antitumor antibiotic, 26 sparsomycin analogs (3-5) were synthesized and their antibacterial activities and lytic actions on Ehrlich ascites carcinoma cells were tested. It was found that N-[(E)-β-(6-methyluracil-5-yl) acryloyl]-S-methyl-D-cysteinol (5g) and N-[(E)-β-(6-methyluracil-5-yl) acryloyl]-D-methioninol (5i) showed significant antibacterial activity (minimum inhibitory concentration 25 μg/ml) against Streptococcus pyogenes.
为了研究抗肿瘤抗生素sparsomycin的构效关系,合成了26个sparsomycin类似物(3-5),并检测了它们的抗菌活性和对艾氏腹水癌细胞的溶解作用。发现N-[(E)-β-(6-甲基尿嘧啶-5-基)丙烯酰基]-S-甲基-D-半胱氨酸(5g)和N-[(E)-β-(6-甲基尿嘧啶- 5-基)丙烯酰基]-D-甲硫氨醇 (5i) 对化脓性链球菌表现出显着的抗菌活性(最低抑制浓度 25 μg/ml)。