作者:Bruno Danieli、Giordano Lesma、Giovanni Palmisano、Renata Riva
DOI:10.1002/hlca.19850680812
日期:1985.12.18
A colchicine derivative, previously isolated from the reaction of isocolchicine with sodium thiomethoxide in aqueous MeOH, was now identified as 11-(methylthio)isocolchicine on the basis of 1H-, 13C-NMR spectra and chemical correlation. This reaction represents the first example of abnormal nucleophilic displacement (telesubstitution) in the colchicine chemistry.
根据1 H-,13 C-NMR光谱和化学相关性,先前从异秋水仙碱与硫代甲醇钠在MeOH水溶液中的反应分离出的秋水仙碱衍生物现已鉴定为11-(甲硫基)异秋水仙碱。该反应代表了秋水仙碱化学中异常亲核取代(远程取代)的第一个例子。