Insecticidal activity of pyrrolizine derivatives isolated fromStreptomyces griseus

Phenopyrrozin, a New Radical Scavenger Produced by Penicillium sp. FO-2047.

“…FO-2047. In this paper, the taxonomy of the producing strain and fermentation, isolation, physico-chemical properties, structure elucidation, and biological activities of phenopyrrozin are described. Glycosidase Assay Inhibitory activities of a-glucosidase and a-mannosidase were measured as described previously .7) Catalytic hydrogenation of 1 A mixture of 1 (20mg) and 10% palladium on activated carbon (40 mg) in MeOH(3 ml) was hydrogenated DEC. 1995 under an atmospheric pressure of hydrogen with stirring for 3 hours.…”

Pyrrolizidine Alkaloids Pyrrolams A-D: A Survey of Synthetic Efforts, Biological Activity, and Studies on Their Stability

“…In terms of biological significance, pyrrolam A (1) shows herbicidal activity against wheat and rice seedlings and also causes damage to fertilized eggs at low concentration. 11 Jizba et al 14 found that both pyrrolam A (1) and pyrrolam C (3) are unstable by a non-enzymatic process, which resulted in the transformation of pyrrolam A (1) into pyrrolam C (3) in a ratio of ca. 1:2.…”

Estudo metabolômico de bactérias marinhas: avaliação das atividades larvicida e citotóxica de seus extratos

“…O gênero Streptomyces possui mais de 680 espécies de bactérias descritas e apresenta uma notável capacidade de produzir compostos com propriedades antibióticas, antifúngicas e antiparasitárias, além de substâncias com atividade inseticida. Derivados de pirrolisina isolados de Streptomyces griseus apresentam atividade inseticida (JIZBA et al, 1992), enquanto o extrato bruto de Streptomyces sp.…”