New pyrazolones as 11b-HSD1 inhibitors for diabetes
申请人:Amrein Kurt
公开号:US20070049574A1
公开(公告)日:2007-03-01
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R
1
to R
4
have the significance given in claim
1
can be used in the form of pharmaceutical compositions.
Copper/Persulfate-Promoted Oxidative Decarboxylative C−H Acylation of Pyrazolones with α-Oxocarboxylic Acids: Direct Access to 4-Acylpyrazolones under Mild Conditions
facile and efficient oxidative C−H acylation of N‐substituted pyrazolones using α‐oxocarboxylic acids as an acyl group source was developed. A combination of Cu(OAc)2 and K2S2O8 enables the reaction to proceed smoothly under air and provides a wide array of 4‐acylpyrazolone products in moderate to excellent yields. The mechanism of this transformation is believed to proceed via a copper‐induced decarboxylation
使用α-氧代羧酸作为酰基源,开发了一种简便,有效的N-取代吡唑啉酮的氧化CH-H酰化方法。Cu(OAc)2和K 2 S 2 O 8的组合可使反应在空气中顺利进行,并以中等到极好的收率提供各种各样的4-酰基吡唑啉酮产品。据信这种转变的机理是通过铜诱导的脱羧反应形成酰基铜物质而进行的。该方法为将酰基部分直接安装到生物活性吡唑啉酮衍生物中提供了方便且有用的途径,该途径可进一步用于许多应用中。
[EN] SUBSTITUTED BENZENE COMPOUNDS<br/>[FR] COMPOSÉS DE BENZÈNE SUBSTITUÉS
申请人:EPIZYME INC
公开号:WO2015010049A1
公开(公告)日:2015-01-22
The present invention relates to substituted benzene compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating cancer by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present invention also relates to the use of such compounds for research or other non-therapeutic purposes.
A highly efficient protocol for a direct thiolation of N-substituted pyrazolones with diaryldisulfides is described. Using a combination of DABCO and silver(I) acetate, the C–S bond formation proceeds smoothly at room temperature under mild and easy to handle conditions. This synthetic strategy offers a convenient and direct modification of antipyrine and other pyrazolone substrates, giving a series
Metal-Free Direct C-H Thiolation and Thiocyanation of Pyrazolones
作者:Tanakorn Kittikool、Sirilata Yotphan
DOI:10.1002/ejoc.201901770
日期:2020.2.28
Metal‐freedirect thiolation and thiocyanation of pyrazolones with disulfides and thiocyanate salts, respectively, have been successfully developed under mild conditions.