decompose in the 350–450°C temperature range. IR data suggest inequivalence of the two CO bonds in each of the coordinated ligands. The four bands were assigned to Al-O vibration on the basis of the metal effect.
β-Hydroxy ketones were synthesized in one-pot from β-diketones by reducing alkyl ketones chemoselectively by keeping aryl ketone intact. Initially, β-diketones were enolized using LiHMDS and later alkyl ketone was chemoselectively reduced efficiently by lithium aluminium hydride. This method produces β- hydroxyl ketones from the corresponding β-diketones in high yield.
Deuteration Degree‐Controllable Methylation via a Cascade Assembly Strategy using Methylamine‐Water as Methyl Source
作者:Fuhu Guo、Shiquan Shan、Xu Gong、Cancan Dai、Zhengjun Quan、Xiamin Cheng、Xinyuan Fan
DOI:10.1002/chem.202301458
日期:2023.8.10
Methylamine-water system was developed as a new methyl source for the methylation of β-diketones under mild photocatalytic reaction conditions. Degree-controllable deuterated methylation could be easily achieved by using distinct combinations of d-methylamine-D2O system, allowing for the synthesis of deuterium-labelled bioactive molecules with a controllable number ranging from 0 to 3.
BICYCLIC HETEROARYL COMPOUNDS USEFUL AS INHIBITORS OF THE PAR-2 SIGNALING PATHWAY
申请人:VERTEX PHARMACEUTICALS INCORPORATED
公开号:US20180057505A1
公开(公告)日:2018-03-01
The compounds of formula I, wherein the variables are as defined herein, and pharmaceutically acceptable salts thereof are useful as inhibitors of the PAR-2 signaling pathway. The compounds of formula I and pharmaceutically acceptable compositions comprising such compounds can be employed for treating various diseases, disorders, and conditions.