Application of fructus arctii aglycon methionine ester hydrochloride to preparation of antitumor medicine
A technology for the use of methylthiobutyrate, which is applied in the field of application of arctigenin methionine hydrochloride in the preparation of antitumor drugs, and can solve the problems of restricted application and low oral bioavailability
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Embodiment 1
[0012] Example 14-(4-(3,4-dimethoxybenzyl)-2-carbonyl)tetrahydrofuranmethyl-2-methoxyphenol-2-amino-4-methylthiobutyrate hydrochloride Synthesis.
[0013] Weigh 0.20g (0.54mmol) arctigenin, 0.27g (1.08mmol) Boc-L-methionine, 0.21g (1.08mmol) 1-ethyl-(3-dimethylaminopropyl) carbodiimide Put hydrochloride (EDCI), 0.03g (0.27mmol) 4-dimethylaminopyridine (DMAP) in a 100ml spinner bottle, add 10ml of acetonitrile solution, stir and dissolve in an ice-water bath, and react at room temperature for 2 hours, and TLC detects that the reaction reaches After the reaction was completed, the solvent was distilled off under reduced pressure to obtain a light yellow viscous substance. The viscous material was separated by column chromatography with YMC reverse-phase packing, and eluted with acetonitrile / water (55:45) mixed solvent to collect the desired components, recover the organic solvent, and freeze-dry to obtain a white powdery compound. Dissolve the white powdery compound obtained a...
Embodiment 2
[0014] Example 2 Arctigenin and 4-(4-(3,4-dimethoxybenzyl)-2-carbonyl)tetrahydrofuranmethyl-2-methoxyphenol-2-amino-4-methylthio The solubility of butyrate hydrochloride in water is shown in Table 1.
[0015]
[0016] As can be seen from Table 1, after arctigenin is structurally modified, its modified product 4-(4-(3,4-dimethoxybenzyl)-2-carbonyl)tetrahydrofurylmethyl-2-methoxy The water solubility of phenol-2-amino-4-methylthiobutyrate hydrochloride is greatly increased, which improves the shortcoming of arctigenin's low solubility and helps to improve the bioavailability.
Embodiment 3
[0017] Example 34-(4-(3,4-dimethoxybenzyl)-2-carbonyl)tetrahydrofuranmethyl-2-methoxyphenol-2-amino-4-methylthiobutyrate hydrochloride Effects on the tumor suppressor effect and immune function of H22 xenografted mice.
[0018] 1. Materials and methods
[0019] 1.1 Materials
[0020] 1.1.1 Experimental animals and cell lines
[0021] SPF grade ICR mice (male), weighing 19-21 g, animal certificate number: SCXK (Ji)-2011-0004, were purchased from Changchun Yisi Experimental Animal Technology Co., Ltd. Mouse quality inspection unit: Jilin Provincial Laboratory Animal Quality Inspection Center.
[0022] 1.1.2 Drugs and reagents
[0023] Arctigenin extraction and separation preparation
[0024] Synthesis and preparation of arctigenin methionine hydrochloride
[0025] Cyclophosphamide (CTX) Shanghai Hualian Pharmaceutical Co., Ltd.
[0026] Burea Nitrogen (BUN) Test Kit Nanjing Jiancheng Bioengineering Research Institute
[0027] Creatinine (Cr) Test Kit Nanjing Jiancheng Bi...
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