BENZYLIDENE-INDOLINONE COMPOUNDS AND THEIR MEDICAL USE
申请人:GO Mei Lin
公开号:US20130035364A1
公开(公告)日:2013-02-07
Compounds of general formula I:
wherein
R
1a
, R
1b
, R
2
, R
3a
, R
3b
and X are as defined herein are tyrosine kinase inhibitors and are useful for the treatment of various diseases and conditions, for example cancer.
Enantioselective 1,3-Dipolar Cycloaddition of Methyleneindolinones with α-Diazomethylphosphonate to Access Chiral Spiro-phosphonylpyrazoline-oxindoles Catalyzed by Tertiary Amine Thiourea and 1,5-Diazabicyclo[4.3.0]non-5-ene
作者:Nan Huang、Liangliang Zou、Yungui Peng
DOI:10.1021/acs.orglett.7b02763
日期:2017.11.3
A methodology to access chiral 3,3′-spiro-phosphonylpyrazoline oxindoles via an asymmetric 1,3-dipolarcycloadditionreaction of substituted methyleneindolinones with α-diazomethylphosphonate in the catalysis of tertiary amine thiourea and 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) has been established. This method exhibits high functional group compatibility, where a wide range of methyleneindolinones
Functionalized 3-benzylidene-indolin-2-ones: Inducers of NAD(P)H-quinone oxidoreductase 1 (NQO1) with antiproliferative activity
作者:Wei Zhang、Mei-Lin Go
DOI:10.1016/j.bmc.2008.12.052
日期:2009.3
Functionalized benzylidene-indolin-2-ones are widely associated with antiproliferative activity. The scaffold is not normally associated with chemoprevention in spite of the presence of a nitrogen-linked Michael acceptor moiety that may predispose members to induction of NQO1, a widely used biomarker of chemopreventive potential. To investigate this possibility, we have synthesized and evaluated a series of functionalized 3-benzylidene-indolin-2-ones for induction of NQO1 in murine Hepa1c1c7 cells as well as antiproliferative activity against two human cancer cell lines (MCF-7, HCT116). The benzylideneindolinones were found to be good inducers of NQO1 activity, with 85% of test compounds able to increase basal NQO1 activity by more than twofold at concentrations of <= 10 mu M. By contrast, fewer compounds (11%) tested at the same concentration were able to reduce cell viability by more than 50%. Structure activity relationships showed that the nitrogen linked Michael acceptor moiety was an essential requirement for both activities. This common feature notwithstanding, substitution of the 3-benzylidene-indolin-2-one core structure affected NQO1 induction and antiproliferative activities in dissimilar ways, underscoring different structural requirements for these two activities. Nonetheless, promising compounds ( 10, 42, 45-48) were identified that combine selective induction of NQO1 with potent antiproliferative activity. A potential advantage of such agents would be the ability to provide added protection to normal cells by the up-regulation of NQO1 and other phase II enzymes while simultaneously targeting neoplastic cells. (C) 2008 Elsevier Ltd. All rights reserved.