Chemical component separation and identification method for Parisforrestii (Takht.) H. Li antitumor activity part PFE-PT3
A technology of PFE-PT3 and long column double building, which is applied in the direction of material separation, medical preparations containing active ingredients, plant/algae/fungus/moss components, etc., and can solve problems such as chemical components that have not been reported yet
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Embodiment 1
[0039] The preparation of PFE-PT3 of the present invention and the separation of contained chemical composition thereof:
[0040] Preparation of PFE-PT3: dry rhizomes (4.4kg) of Parisforrestii (Takht.) H.Li, crushed, soaked in 95% ethanol (13L) for 7 days, filtered, and the filter residue was further extracted. A total of 4 extractions were performed, the filtrates were combined, and the solvent was recovered to obtain 550 g of extract (code PFE-PT1). PFE-PT1 was made into a suspension with water (2L), extracted with ethyl acetate (2L×3), and the ethyl acetate was recovered to obtain 19 g of the ethyl acetate extraction fraction (code PFE-PT2). The mother liquor extracted with ethyl acetate was further extracted with n-butanol (2L×3), and n-butanol was recovered to obtain 290 g of n-butanol extraction fraction (code PFE-PT3).
[0041] Separation of chemical components contained in PFE-PT3:
[0042] Take PFE-PT3 with a weight of 180g and use chloroform-methanol mixed solvent ...
Embodiment 2
[0045] The structural identification of PFE-PT3 chemical composition of the present invention:
[0046] Papaya saponin I, white solid, molecular formula C 44 h 70 o 16 , CAS Registry No. 50773-41-6. 1 HNMR (C 5 D. 5 N, 500MHz) δ: 6.28 (1H, brs), 5.92 (1H, d, J = 1.4Hz), 5.29 (1H, d, J = 5.1Hz), 1.76 (3H, d, J = 6.2Hz), 1.12 (3H, d, J = 7.0Hz), 1.03 (3H, s), 0.81 (3H, s), 0.68 (3H, d, J = 5.6Hz). 13 CNMR (C 5 D. 5 N,125MHz)δ:140.6,121.7,109.5,109.1,101.8,100.0,86.6,82.6,81.0,77.9,77.7,77.6,77.3,76.8,76.6,74.0,72.7,72.4,69.4,66.7,62.8,62.4, 61.2, 56.5, 50.1, 41.8, 40.3, 39.7, 38.8, 37.4, 37.0, 32.2, 32.1, 31.7, 31.5, 30.5, 30.0, 29.1, 21.0, 19.3, 18.6, 17.2, 16.2, 14.9. ESIMSm / z853[M-H] - . Its NMR data are basically consistent with the data in the literature [Wang Yu, Gao Wenyuan, Yuan Lichun, Liu Xinqiao, Wang Shujun, Chen Cui. Study on the chemical composition of Dianzhonglou. Chinese Herbal Medicine, 2007,38(1):17-20].
Embodiment 3
[0057] Inhibition of tumor cell growth by the n-butanol extraction fraction (PFE-PT3) of the extract of Pachyphylla lanceolata:
[0058] 1. Segment the PFE-PT3.
[0059] Take PFE-PT3 with a weight of 180g and use chloroform-methanol mixed solvent gradient (10:1, 5:1, 3:1, 1:1) to elute and divide through silica gel column chromatography to obtain Fr.A (14g), Four parts of Fr.B (101g), Fr.C (45g) and Fr.D (12g). Take 30g of part Fr.B and pass through C 18 Reverse-phase silica gel column chromatography (methanol-water, 10:90 → 100:0), to obtain Fr.B 1 (1.0g), Fr.B 2 (0.5g), Fr.B 3 (0.8g), Fr.B 4 (4.6g), Fr.B 5 (16.1g) and Fr.B 6 (1.0 g) 6 portions.
[0060] 2. Take a small amount of sample from the heavy part, and use column chromatography and semi-preparative high performance liquid chromatography to quickly obtain the chemical composition.
[0061] Take Fr.B 3 A portion of 150 mg was subjected to LH-20 gel column chromatography (methanol elution), followed by silica ...
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