Ralph N. Blomster

TL;DR: Croton lechleri L. (Euphorbiaceae), a plant from the Upper Amazon Valley of Peru, yielded the alkaloid taspine, which was studied using the carrageenan-induced pedal edema method, the cotton pellet-induced granuloma method, and the adjuvant polyarthritis model.

TL;DR: Thirty-six alkaloids isolated either from Catharanthus roseus or C. lanceus were evaluated for in vitro activity against vaccinia and polio type III viruses, with pericalline being the most effective.

TL;DR: The bark of Himatanthus sucuuba was screened for pharmacological and anticancer activities and the lactone, fulvoplumierin (C14H12O4), was isolated from the n-hexane fraction by elemental analysis and IR, mass spectral, and melting-point determinations.

TL;DR: Coptisine chloride and a second new alkaloid have been shown to be two of the cytotoxic principles of Chelidonium majus.