Structure-activity studies of trichothecenes: cytotoxicity of analogs and reaction products derived from T-2 toxin and neosolaniol
摘要:
Forty-two analogues and reaction products derived from T-2 toxin or neosolaniol were assayed for their cytotoxicity to cultured mouse lymphoma cells. Structure-activity relationships confirmed the stereospecific nature of the cytotoxic action of T-2. Cytotoxicity was particularly susceptible to changes at C3, C4, C9, and C10 but was relatively unaffected by changes at C8, which appears to represent a region of steric tolerance in the interaction of T-2 with a cellular constituent. The most potent compounds were T-2, diacetoxyscirpenol, and a series of C8 ester analogues 11 and 31-35.
CD additivity in trichothecene benzoates: application as a microanalytical method for trichothecene characterization
作者:Eugene M. Oltz、Koji Nakanishi、Boris Yagen、David G. Corley、George E. Rottinghaus、Michael S. Tempesta
DOI:10.1016/s0040-4020(01)90546-0
日期:——
The additivityrelation in values of split CDcurves previously established with pyranose p-bromobenzoates was shown to be valid for p-bromobenzoates of the cage-like trichothecene system (which also possesses a primary hydroxyl group). This suggests that additivity is generally valid even for congested multichromophoric molecules. The relation has been integrated Into a new micro method for trichothecene