Research Area: Infection Biological Activity: Cinchonidine is an alkaloid used in asymmetric synthesis in organic chemistry. It is a stereoisomer and pseudo-enantiomer of cinchonine. [1] Cinchonidine beta-resorcylate was active; all mice were cured at 1 mmol/kg and the mean survival time was 13.8 +/- 2.4 days after a subcutaneous treatment at 0.5 mmol/kg in a single dose. In the series of acridines, (N-alpha, sigma-dioxopentyl)-5-amino-1,2,3,4-tetrahydroacridine cured all mice at 50 mumol/kg under the same conditions. The maximum tolerated doses in mice ranged from 100 to 150 mumol/kg for these acridine derivatives. [2] |