N-substituted hydrazines were described. Hydrazones (6, 7a, 8a–c, 9b–e, 10e, 11e, 12) were evaluated for cytotoxicity (MTT test) against HL-60 and NALM-6 leukemia cells. Phosphorohydrazone of 3-formylchromone 8a and hydrazone of 2-amino-3-chromone derivative 11e showed appreciable cytotoxicity. The cytotoxicity indices of 8a, 11e, and 12 were higher on drug-resistant HL-60 ADR cells in comparison to
Highly Sensitive and Selective Rhodamine-Based “Off–On” Reversible Chemosensor for Tin (Sn<sup>4+</sup>) and Imaging in Living Cells
作者:Ajit Kumar Mahapatra、Saikat Kumar Manna、Debasish Mandal、Chitrangada Das Mukhopadhyay
DOI:10.1021/ic4007026
日期:2013.10.7
A structurally characterized new oxo-chromene functionalized rhodamine derivative L1 exhibits high selectivity toward Sn4+ by forming a 1:1 complex, among other biologically important metal ions, as studied by fluorescence, absorption, and HRMS spectroscopy. Complexing with Sn4+ triggers the formation of a highly fluorescent ring-open form which is pink in color. The sensor shows extremely high fluorescence enhancement upon complexation with Sn4+, and it can be used as a "naked-eye" sensor. DFT computational studies carried out in mimicking the formation of a 1:1 complex between L1 and Sn4+ resulted in a nearly planar pentacoordinate Sn(IV) complex. Studies reveal that the in situ prepared L1-Sn complex is selectively and fully reversible in presence of sulfide anions. Further, confocal microscopic studies confirmed that the receptor shows in vitro detection of Sn4+ ions in RAW cells.
Yuvaraj, Panneerselvam; Reddy, Boreddy S. R., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2016, vol. 55B, # 1, p. 83 - 87
作者:Yuvaraj, Panneerselvam、Reddy, Boreddy S. R.
DOI:——
日期:——
NOHARA, AKIRA;ISHIGURO, TOSHIHIRO;UKAWA, KIYOSHI;SUGIHARA, HIROSADA;MAKI,+, J. MED. CHEM., 1985, 28, N 5, 559-568
Honokiol Derivates For the Treatment of Proliferative Disorders
申请人:Arbiser Jack L.
公开号:US20080300298A1
公开(公告)日:2008-12-04
The present invention provides novel honokiol derivatives, as well as pharmaceutical compositions containing the honokiol derivatives. These compounds and pharmaceutical compositions can be used in the prevention and/or treatment of cancer. In particular, honokiol derivatives, pharmaceutical compositions comprising the derivatives, and methods for their use in the treatment of myeloma are provided.