1,8-(13)C-8-bromooctan-1-ol 、
(E)-5-hydroxy-9-(2-methyl-2,3-dihydro-1H-benzo[f]thiochromen-1-ylidene)-9H-thioxanthen-4-yl dimethylcarbamate 在
caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以82%的产率得到(E)-5-(1,8-(13)C-8-hydroxyoctyloxy)-9-(2-methyl-2,3-dihydro-1H-benzo[f]thiochromen-1-ylidene)-9H-thioxanthen-4-yl dimethylcarbamate