[EN] SUBSTITUTED 1H-PYRIDINE-2-ONE DERIVATIVES<br/>[FR] DERIVES DE 1H-PYRIDINE-2-ONE SUBSTITUEE
申请人:C & C RES LAB
公开号:WO2004050624A1
公开(公告)日:2004-06-17
The present invention relates to substituted 1H-pyridine-2-one derivatives of formula (1) and pharmaceutically acceptable salts thereof, which are useful for the treatment of chronic obstructive pulmonary disease, asthma, chronic bronchitis, psoriasis, ulcerative colitis, Crohn's disease (local ileitis), arteriosclerosis, rheumatoid arthritis, osteoporosis, bone arthritis, depression, memory loss, inflammation mediated by chronic necrosis and the others mediated by PDE4: (I)
Carboxylative cyclization of substituted propenyl ketones using CO<sub>2</sub>: transition-metal-free synthesis of α-pyrones
作者:Wen-Zhen Zhang、Ming-Wang Yang、Xiao-Bing Lu
DOI:10.1039/c6gc01346e
日期:——
Carbon dioxide is a green carboxylative reagent with regard to its non-toxic and renewable property. Described herein is a carboxylative cyclization of substituted 1-propenyl ketones via [gamma]-carboxylation using CO2, which...