C−H Methylation of Iminoamido Heterocycles with Sulfur Ylides**
作者:Prithwish Ghosh、Na Yeon Kwon、Saegun Kim、Sangil Han、Suk Hun Lee、Won An、Neeraj Kumar Mishra、Soo Bong Han、In Su Kim
DOI:10.1002/anie.202010958
日期:2021.1.4
The direct methylation of N‐heterocycles is an important transformation for the advancement of pharmaceuticals, agrochemicals, functional materials, and other chemical entities. Herein, the unprecedented C(sp2)‐H methylation of iminoamido heterocycles as nucleoside base analogues is described. Notably, trimethylsulfoxonium salt was employed as a methylating agent under aqueous conditions. A wide substrate
The first synthesis of the antitumorantibiotic guanine 7-oxide (VI) has been achieved via a 4-step route starting from phenacyl bromide (I) and the nitropyrimidone III and proceeding through the intermediates IVe and Ve.
[EN] BENZENESULFONIC ACID SALT COMPOUNDS<br/>[FR] COMPOSÉS DE SEL D'ACIDE BENZÈNE SULFONIQUE
申请人:MITSUBISHI TANABE PHARMA CORP
公开号:WO2010039124A1
公开(公告)日:2010-04-08
Besylate salts of /rans-4-(2-[(2S)-2-cyanopyrrolidinyl]-2-oxoethyl}amino)- Λ/,Λ/-dimethylcyclohexanecarboxamide are described as well as methods of using the same in the treatment of disorders characterized by hyperglycemia.