Synthesis and structure–activity relationships of N2-alkylated quaternary β-carbolines as novel antitumor agents
摘要:
A series of novel N-2-alkylated quaternary beta-carbolines was synthesized by modification of position-1, 2,7 and 9 of beta-carboline nucleus with various alkyl and arylated alkyl substituents, and their cytotoxic activities in vitro and antitumor potencies in mice were evaluated. Compound 3m was found to be the most potent antitumor agent. SARs analysis revealed that (1) the substituents in position-2 and 9 of beta-carboline nucleus played a vital role in modulation of antitumor activity; (2) the benzyl and 3-phenylpropyl substituents in position-2 and 9 of beta-carboline ring were the optimal substituents giving rise to significant antitumor agent. These compounds might be a novel promising class of antitumor agents with clinical development potential. (C) 2013 Elsevier Masson SAS. All rights reserved.
Copper-Catalyzed Synthesis of β- and δ-Carbolines by Double N-Arylation of Primary Amines
作者:Tran Quang Hung、Tuan Thanh Dang、Peter Langer、Ban Van Phuc、Ha Nam Do、Nguyen Minh Quan、Nguyen Ngoc Tuan、Nguyen Quang An、Nguyen Van Tuyen、Hoang Le Tuan Anh
DOI:10.1055/s-0040-1720461
日期:2021.6
Two efficient and practical approaches are reported for the synthesis of β- and δ-carbolines from 3,4-dibromopyridine. The synthesis is based on site-selective Cu-catalyzed double C–N coupling reactions and subsequent annulations by twofold Pd-catalyzed C–N coupling with amines.