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    • 10. 发明授权
    • Cytoxic substances from the marine cyanophyte hormothamnion
enteromorphoides grunow
    • 来自海洋蓝藻激素的肠毒素物质
    • US4935529A
    • 1990-06-19
    • US320007
    • 1989-03-06
    • William H. Gerwick
    • William H. Gerwick
    • C07D311/22C12P17/06
    • C12R1/89C07D311/22C12P17/06
    • Several new, biologically active substances have been isolated from Hormothamnion enteromorphoides, a somewhat rare cyanophyte from Puerto Rico.Hormothamnion, a lipophilic metabolite from this alga, has the styrylchromone structure: ##STR1## Hormothamnion and, to a lesser extent, one of its homologs, are potent cytotoxins to some types of cancer cells and appear to exert this cytotoxic action by a selective inhibition of RNA synthesis.A peptide compound of about 11 to 12 amino acids has antimicrobial activity, particularly against Candida albicans. The peptide, which includes phenylalanine, serine and other aliphatic amino acids, has blocked carboxyl and amino termini.
    • 已经从波多黎各的一种有些罕见的蓝藻分离出了几种新的生物活性物质。 来自该藻类的亲脂性代谢物ormothamion具有苯乙烯基色酮结构:在较小程度上,其同系物之一是对某些类型的癌细胞的有效细胞毒素,并且似乎通过选择性抑制发挥这种细胞毒性作用 的RNA合成。 约11至12个氨基酸的肽化合物具有抗微生物活性,特别是针对白色念珠菌。 包括苯丙氨酸,丝氨酸和其他脂肪族氨基酸的肽已经封闭羧基和氨基末端。