Synthesis of Heterocycles via Pd-Ligand Controlled Cyclization of 2-Chloro-<i>N</i>-(2-vinyl)aniline: Preparation of Carbazoles, Indoles, Dibenzazepines, and Acridines
作者:Dmitry Tsvelikhovsky、Stephen L. Buchwald
DOI:10.1021/ja107511g
日期:2010.10.13
Pd-catalyzed condensation of 2-bromostyrene and 2-chloroaniline derivatives yields stable diphenylamine intermediates, which are selectively converted to five-, six-, or seven-membered heteroaromatics (indoles, carbazoles, acridines, and dibenzazepines). The selectivity of these intramolecular transformations is uniquely ligand-controlled and offers efficient routes to four important classes of heterocycles from
作者:David B. Kastrinsky、Jaya Sangodkar、Nilesh Zaware、Sudeh Izadmehr、Neil S. Dhawan、Goutham Narla、Michael Ohlmeyer
DOI:10.1016/j.bmc.2015.07.007
日期:2015.10
The phenothiazine and dibenzazepine tricyclics are potent neurotropic drugs with a documented but underutilized anti-cancer side effect. Reengineering these agents (TFP, CPZ, CIP) by replacing the basic amine with a neutral polar functional group (e.g., RTC-1, RTC-2) abrogated their CNS effects as demonstrated by in vitro pharmacological assays and in vivo behavioral models. Further optimization generated several phenothiazines and dibenzazepines with improved anti-cancer potency, exemplified by RTC-5. This new lead demonstrated efficacy against a xenograft model of an EGFR driven cancer without the neurotropic effects exhibited by the parent molecules. Its effects were attributed to concomitant negative regulation of PI3K-AKT and RAS-ERK signaling. (C) 2015 Elsevier Ltd. All rights reserved.
ARYL-SUBSTITUTED PYRIDYLALKANE, ALKENE, AND ALKINE CARBOXAMIDES USEFUL AS CYTOSTATIC AND IMMUNOSUPPRESSIVE AGENTS
申请人:Klinge Pharma GmbH
公开号:EP1042291B1
公开(公告)日:2005-07-13
PIPERIDINYL-SUBSTITUTED PYRIDYLALKANE, ALKENE AND ALKYNE CARBOXAMIDES AS CYTOSTATIC AGENTS AND IMMUNOSUPPRESSANTS
申请人:Astellas Pharma GmbH
公开号:EP1044197B1
公开(公告)日:2006-04-19
NEW PIPERAZINYL-SUBSTITUTED PYRIDYLALKANE, ALKENE AND ALKINE CARBOXAMIDES