A new procedure for the carbonylative acetylation of heterocycles has been developed. In this process, organic peroxide acts as the methyl source, various heterocycles were transformed into the corresponding methyl heterocyclic ketones in moderate to good yields.
New 1,2,4-triazine derivatives and biological applications thereof
申请人:Mutabilis
公开号:EP2141164A1
公开(公告)日:2010-01-06
The invention relates to new 1,2,4-triazine derivatives of formula (I):
wherein A, B, R2 and Y are defined in the application,
their preparation and intermediates, their use as drugs and pharmaceutical compositions and associations containing them.
The compounds of formula (I) are capable of inhibiting bacterial heptose synthesis.
Direct C-2 Acylation of Thiazoles with Aldehydes via Metal- and Solvent-Free C–H Activation in the Presence of tert-Butyl Hydroperoxide
作者:Bhalchandra Bhanage、Ashok Khemnar
DOI:10.1055/s-0033-1340068
日期:——
activation of aldehydes and thiazoles is developed. The reaction occurs smoothly, under metal-, acid- and solvent-free conditions usingtert-butylhydroperoxide as the oxidant under an air atmosphere, to afford a wide range of heteroaryl ketones in moderate to good yields. The sp2 C–H bonds in the aldehyde and thiazole undergo directoxidativecross-coupling, resulting in C-2 acylation of the azole
This invention relates to compounds of the formula
wherein R
1
to R
9
are as described below, or to pharmaceutically acceptable salts thereof. These compounds are BACE2 inhibitors and can be used as medicaments for the therapeutic and/or prophylactic treatment of diseases such as diabetes, particularly type 2 diabetes, and other metabolic disorders.