Copper-catalyzed synthesis of aryl and alkyl trifluoromethyl sulfides using CF3SiMe3 and Na2S2O3 as –SCF3 source
作者:Wei Zhong、Xiaoming Liu
DOI:10.1016/j.tetlet.2014.07.039
日期:2014.8
universal and efficient Cu(I)-catalyzed synthesis of aryl and alkyl trifluoromethyl sulfides has been developed. In this catalytic system, S-aryl or S-alkyl sulfothioate (I or II) proved to be the key intermediate. Substrates bearing groups of I, Br, Cl, OTs, and OMs on the aryl carbon and no matter electron-withdrawing and electron-donating substitutions on the aromatic ring could afford good to excellent
Fluorinated functionality: The copper‐catalyzed oxidative trifluoromethylthiolation of aryl boronicacids with TMSCF3 and elemental sulfur at room temperature is described for the first time. This reaction provides a concise and efficient method for the synthesis of aryl trifluoromethyl thioethers (ArSCF3) under mild conditions. Phen=Phenanthroline.
HALOALKYLSULFONE SUBSTITUTED COMPOUNDS USEFUL FOR TREATING OBESITY AND DIABETES
申请人:Olesen Preben Houlberg
公开号:US20100041657A1
公开(公告)日:2010-02-18
The present invention relates to compounds of formula I, in which at least one of R5, R6 and R7 is SR12, S(O)R12 or S(O)2R12 group where R12 is a C1-6haloalkyl group, that act, as chemical uncouplers. Compounds of the invention are useful in the treatment, including prevention, of obesity, diabetes and a number of diseases or conditions associated therewith.
A compound of formula (I) or a pharmaceutically acceptable salt or prodrug ester thereof, wherein the groups R2, R3, R4, Q, X and Y are as defined in the specification, is useful in the treatment of bone conditions related to increased calcium depletion or resorption.
Pharmaceutical compositions comprising a calcilytic agent
申请人:Novartis AG
公开号:EP1964548A1
公开(公告)日:2008-09-03
Provided is a pharmaceutical composition comprising a calcilytic agent which, when administered orally to a subject induces a rapid and short-lasting absorption of the calcilytic agent and/or a rapid and short-lasting release of the parathyroid hormone.