Tetracyclic triterpene derivatives with immunosuppressant activity
申请人:Merck & Co., Inc.
公开号:US06100293A1
公开(公告)日:2000-08-08
The compounds of Formula I ##STR1## are useful as immunosuppressive agents.
式I的化合物##STR1##可用作免疫抑制剂。
Trifluoromethylthiolation of Allylsilanes and Silyl Enol Ethers with Trifluoromethanesulfonyl Hypervalent Iodonium Ylide under Copper Catalysis
作者:Sadayuki Arimori、Masahiro Takada、Norio Shibata
DOI:10.1021/acs.orglett.5b00057
日期:2015.3.6
Electrophilic trifluoromethylthiolation of allylsilanes and silyl enol ethers with trifluoromethanesulfonyl hypervalentiodoniumylide has been conducted. In the presence of a catalytic amount of CuF2, the reaction proceeded in modest to high yields under mild conditions.