Bafilomycin B1, a macrolide antibiotic isolated from Streptomyces sp, acts as an inhibitor of K+-dependent ATPase of E. coli. It also inhibits Gram-positive bacteria and fungi.
Anticancer agent 29 (Compd E Z-6f) exhibits potent anticancer activity, as indicated by IC50 values of 0.054 μM, 0.127 μM, 0.129 μM, and 0.396 μM for CDK2, CDK1, CDK4, and CDK6, respectively [1].
Eprinomectin B1a, composing over 90% of the antiparasitic agent eprinomectin, is a primary component alongside eprinomectin B1b, which constitutes less than 10%. This compound is part of the avermectin family, used as insecticides and anthelmintics.
Avermectin B1a aglycone is an aglycone form of the anthelmintic and insecticide avermectin B1a . It hyperpolarizes P. crassipes muscle fibers with a minimum active concentration (MAC) value of 0.1 μM. Avermectin B1a aglycone decreases survival of C. elegans (MAC = 0.1 μM). In vivo, avermectin B1a aglycone prevents seizures induced by pentylenetetrazole in mice (ED50 = 43.9 mg/kg) without inducing deficits in rotarod performance.