Microwave-assisted one-pot regioselective synthesis of 2-alkyl-3,4-dihydro-3-oxo-2H-1,4-benzoxazines
摘要:
A protocol for regioselective one-pot synthesis of 2-alkyl-3,4-dihydro-3-oxo-2H-1,4-benzoxazines under controlled microwave heating has been developed. Starting from commercially available 2-aminophenols, a base-mediated regioselective O-alkylation took place with 2-bromoalkanoates to give the acyclic intermediates, which underwent spontaneously an intramolecular amidation reaction to furnish 2-alkyl-3,4-dihydro-3-oxo-2H-1.4-benzoxazines in 44-82% yields. For the acyclic intermediate possessing an electron-withdrawing group, microwave heating was necessary for the annulation reaction. (c) 2005 Elsevier Ltd. All rights reserved.
Compounds of the following formula are provided for use in inhibiting Poly (ADP-ribose) Polymerase (PARP):
wherein the variables are defined herein. Also provided are pharmaceutical compositions, kits and articles of manufacture comprising such compounds, methods and intermediates useful for making the compounds, and methods of using the compounds.
Compounds of the following formula are provided for use in inhibiting Poly (ADP-ribose) Polymerase (PARP):
wherein the variables are defined herein. Also provided are pharmaceutical compositions, kits and articles of manufacture comprising such compounds, methods and intermediates useful for making the compounds, and methods of using the compounds.
The invention provides compounds of the general formula (1):
wherein the variables are as defined herein. The compounds have use in inhibiting poly (ADP-ribose) Polymerase (PARP). The invention also provides pharmaceutical compositions containing the compounds and their use as medicaments.
[EN] POLY (ADP-RIBOSE) POLYMERASE (PARP) INHIBITORS<br/>[FR] INHIBITEURS DE LA POLY(ADP-RIBOSE)POLYMÉRASE (PARP)
申请人:TAKEDA PHARMACEUTICAL
公开号:WO2010111626A2
公开(公告)日:2010-09-30
Compounds of the following formula are provided for use in inhibiting Poly (ADP-ribose) Polymerase (PARP): wherein the variables are defined herein. Also provided are pharmaceutical compositions, kits and articles of manufacture comprising such compounds, methods and intermediates useful for making the compounds, and methods of using the compounds.