There are provided compounds of the formula
and pharmaceutically acceptable salts and esters thereof
wherein W, V, X, Y, A, R and R′ are as described herein.
The compounds are useful as anticancer agents.
A HOAc‐catalyzed aryloxy/alkoxy‐assisted nucleophilic addition of 2‐methylquinolines to aldehydes in water has been described. The reaction provides an efficient and direct access to hydroxyquinolines in moderate to good yields. In addition, a HOAc/1,3‐DMBBA (1,3‐dimethylbarbituric acid) synergistic organocatalysis system were also developed for the synthesis of alkenylquinolines.
There are provided compounds of the formula
and pharmaceutically acceptable salts and esters thereof
wherein W, V, X, Y, A, R and R′ are as described herein.
The compounds are useful as anticancer agents.
Iron-Catalyzed Cascade Arene−Aldehyde Addition/Cyclizations for the Highly Efficient Synthesis of Xanthenes and Its Analogous: Observation of a C−C Bond Cleavage in Indole-Based Triarylmethanes
作者:Hongfeng Li、Jingyu Yang、Yuanhong Liu、Yanzhong Li
DOI:10.1021/jo9012354
日期:2009.9.4
An efficient, general, and one-pot procedure for the synthesis of multisubstituted xanthene derivatives through Fe(III)-catalyzed reactions of 2-aryloxybenzaldehydes with electron-rich arenes has been developed. This method offers several advantages such as high selectivities, mild reaction conditions, and easily accessible starting materials. A mechanistic study revealed that a C-C bond cleavage of a triarylmethane intermediate might be involved in the domino process.