Aminoalkoxy carbazoles for the treatment of cns diseases
申请人:Pharmacia & Upjohn Company
公开号:US06514968B1
公开(公告)日:2003-02-04
The present invention provides aminoalkoxy carbazole derivatives, and more specifically, provides compounds of formula (I)
wherein R1, R2, R3, R4, R8 and R9 are described herein. These compounds are 5-HT ligands, and are useful for treating diseases wherein modulation of 5-HT activity is desired.
A catalyst free synthesis of 8, 9, 11-trihalo-5 H -benzofuro[3,2- c ]carbazol-10-ols
作者:B. Ravi Shankar、V. Vijayakumar、H. Sivaramakrishnan、K. Nagarajan
DOI:10.1016/j.tetlet.2017.09.009
日期:2017.10
8, 9, 11-Trichloro-5H-benzofuro[3,2-c]carbazol-10-ol analogues have been synthesized by treating 2,3-dihydro-1H-carbazol-4(9H)-one with chloranil/fluoranil without any catalyst and is found to be applicable across a range of carbazolone substrates. A possible mechanism has been proposed.
8、9、11 -Trichloro-5 H-苯并呋喃[3,2 - c ] carbazol-10-ol类似物是通过用苯二甲腈处理2,3-dihydro-1 H -carbazol-4(9 H)-one合成的不含任何催化剂的间苯二酚/氟苯胺,发现可用于多种咔唑酮底物。已经提出了一种可能的机制。
Ru(II)-Catalyzed Decarbonylative Alkylation and Annulations of Benzaldehydes with Iodonium Ylides under Chelation Assistance
作者:Xiang Li、Yang Shen、Guodong Zhang、Xin Zheng、Qing Zhao、Zihe Song
DOI:10.1021/acs.orglett.2c01843
日期:2022.7.29
A Ru(II)-catalyzed decarbonylative alkylation and annulation of salicylaldehydes and 2-aminobenzaldehydes with iodonium ylides has been developed for the synthesis of dibenzo[b,d]furans and NH-free carbazolones. The reaction proceeds smoothly under mild conditions with a low catalyst loading and a broad substrate compatibility. Notably, hydroxy and free amino groups were demonstrated to be the effective