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V/V)]对贝林司他和杂质的溶解性均较好,且对其测定 sion[J]. Mol Pharmacol,2019,95(3):324-334.
无干扰,因此选择流动相B作为溶剂。 [ 8 ] POH C,ARORA M,GHUMAN S,et al. Belinostat in re-
3.3 检测波长的选择 lapsed/refractory T-cell large granular lymphocyte leuke-
本研究预实验发现,贝林司他及各杂质在220 nm波 mia[J]. Acta Haematol,2020,29(1):1-5.
长附近均有较大吸收,因此选择220 nm作为贝林司他有 [ 9 ] STEWART A,YATES I,MUDIE D,et al. Mechanistic
study of belinostat oral absorption from spray-dried disper-
关物质的检测波长。
sions[J]. J Pharm Sci,2019,108(1):326-336.
综上所述,本研究所建立的 HPLC 法能使贝林司他
[10] LIEW W C,SUNDARAM G M,QUAH S,et al. Belino-
的主峰与杂质A、B、C、D、F、G、H得到良好分离。同时,
stat resolves skin barrier defects in atopic dermatitis by tar-
破坏试验结果显示,贝林司他降解过程中质量基本稳
geting the dysregulated miR-335:SOX6 axis[J]. J Allergy
定,且主峰与各降解杂质均能达到良好分离。经检验,
Clin Immunol,2020,146(3):606-620.
本研究中所使用的 3 批贝林司他原料药中仅存在杂质 [11] MARAMPON F,DI NISIO V,PIETRANTONI I,et al.
A、D、H,且含量均较低,杂质 B、C、F、G 均未检出。可 Pro-differentiating and radiosensitizing effects of inhibi-
见,本研究成功建立了测定贝林司他中有关物质含量的 ting HDACs by PXD-101(belinostat)in in vitro and in
方法,且方法准确、专属性好。 vivo models of human rhabdomyosarcoma cell lines[J].
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Belinostat,at its clinically relevant concentrations,inhi- (收稿日期:2020-12-29 修回日期:2021-03-30))
bits rifampicin-induced CYP3A4 and MDR1 gene expres- (编辑:邹丽娟)
·978 · China Pharmacy 2021 Vol. 32 No. 8 中国药房 2021年第32卷第8期