一种新的试剂通过在蓝色 LED 照射下用市售的四(二甲氨基)乙烯 (TDAE)对 SF 6进行 2 电子活化而设计。这种新型 SF 5基试剂的多功能性已被证明可用于 CO 2的脱氧氟化和 CS 2的氟化脱硫,从而提供有用的氟化胺。此外,SF 5 Cl 可以在温和的条件下由试剂I生成,允许烯烃和炔烃的氯代五氟硫烷基化。
A series of 21 new analogues of C-12 dithiocarbamate andrographolide was designed and synthesized from natural andrographolide isolated from a common Thai plant, Andrographis paniculata. The reaction used to manipulate the andrographolide scaffold was conducted in one pot under mild reaction conditions. This avoided toxic catalysts and gave nearly quantitative yields of new analogues, generally without by-products and can be easily scaled -up for industrial processing. All new analogues were evaluated against nine cancer cell lines, some analogues exhibited greater selective cytotoxic activity to MCF-7 cancer cell than that of the parent andrographolide and cancer drugs.