- SILICON PHTHALOCYANINE COMPLEX, PREPARATION METHOD AND MEDICINAL APPLICATION THEREOF
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The present invention relates to a silicon phthalocyanine complex, the preparation method and the medicinal application thereof. The present invention particularly relates to a silicon phthalocyanine complex of formula (I), the preparation method thereof and a pharmaceutical composition comprising the same, as well as the use thereof as a photosensitizer, in particular the use in the treatment of cancers, wherein each substituent in formula (I) is the same as defined in the description.
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Paragraph 0122; 0123
(2017/01/26)
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- High performance liquid chromatographic determination of oxeladin citrate and oxybutynin hydrochloride and their degradation products
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Two high performance liquid chromatographic (HPLC) methods are presented for the determination of oxeladin citrate (OL) and oxybutynin hydrochloride (OB) and their degradation products. The first method was based on HPLC separation of OL from its degradation product using a Nucleosil C18 column with a mobile phase consisting of acetonitrile -0.1% phosphoric acid (60:40 v/v). The second method was based on HPLC separation of OB from its degradation product using a VP-ODS C18 column with a mobile phase consisting of acetonitrile/0.01:M potassium dihydrogen phosphate/diethylamine (60:40:0.2). Quantitation was achieved with UV detection at 220:nm based on peak area. The two HPLC methods were applied for the determination of OL or OB, their degradation products, methylparaben and propylparaben in pharmaceutical preparations. The proposed methods were used to investigate the kinetics of acidic and alkaline degradation processes of OL and OB at different temperatures and the apparent pseudofirst-order rate constant, half-life and activation energy were calculated. The pH-rate profiles of degradation of OL and OB in Britton-Robinson buffer solutions within the pH range 2-12 were studied.
- El-Gindy, Alaa
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p. 689 - 699
(2007/10/03)
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- Methods of enhancing renal uptake of oligonucleotides
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2′-O-Modified ribosyl nucleosides and modified methods containing such nucleosidic monomers are disclosed. Methods are disclosed that have increased binding affinity as shown by molecular modeling experiments. Methods are also disclosed for enhancing the renal uptake of oligomeric compounds as shown using a two-step HRP imunohistochemistry assay. The 2′-O-modified nucleosides of the invention include ring structures that position the sugar moiety of the nucleosides preferentially in 3′ endo geometries.
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- 2′-O-aminoethyloxyethyl-modified oligonucleotides
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2′-O-Modified ribosyl nucleosides and modified oligomeric compounds containing such nucleosidic monomers are disclosed. Oligomeric compounds are disclosed that have increased binding affinity as shown by molecular modeling experiments. The 2′-O-modified nucleosides of the invention include ring structures that position the sugar moiety of the nucleosides preferentially in 3′ endo geometries.
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