CN105017129A - Indole alkaloid and application thereof - Google Patents

Indole alkaloid and application thereof Download PDF

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Publication number
CN105017129A
CN105017129A CN201510386719.8A CN201510386719A CN105017129A CN 105017129 A CN105017129 A CN 105017129A CN 201510386719 A CN201510386719 A CN 201510386719A CN 105017129 A CN105017129 A CN 105017129A
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cancer
indole alkaloid
tumour
compound
application
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CN105017129B (en
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何祥久
王春华
王宜海
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Guangdong Pharmaceutical University
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Guangdong Pharmaceutical University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04Indoles; Hydrogenated indoles
    • C07D209/30Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
    • C07D209/32Oxygen atoms
    • C07D209/38Oxygen atoms in positions 2 and 3, e.g. isatin
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Abstract

The invention discloses indole alkaloid and application thereof and belongs to the technical field of medicines. The structural formula of the indole alkaloid is shown in the description. Experimental data verify that the indole alkaloid has a good anti-tumor effect on gastric cancer and plays a certain role on liver cancer and breast cancer. The compound has the advantages of high efficiency and low toxicity and is to become a novel anti-tumor drug in the market.

Description

A kind of indole alkaloid and application thereof
Technical field
The present invention relates to a kind of new compound and application thereof.
Background technology
Tumour be that the cell of human organ tissue produces under the external and interior long term at adverse factor a kind of take cell hyperproliferation as the true tumor of principal feature, medically can be divided into innocent tumour and the large class of malignant tumour two.Innocent tumour is less to Health Impact, and malignant tumour (also known as cancer) then serious threat the health of the mankind.According to the recent statistics data of the World Health Organization and American Cancer Society, cancer has become the primary cause of disease of human death, within 2008, about there are 1,270 ten thousand new diagnosing cancer cases and 7,600,000 cancer mortality cases (accounting for 13% of all death tolls) in the whole world, and the cancer mortality case of nearly 70% occurs in middle and low income country.Expect the year two thousand thirty, the diagnosis of cancer year and death will respectively up to 2,140 ten thousand and 1,320 ten thousand.
According to Cancer in China foundation data, China's mortality of malignant tumors belongs to world's higher level, and in sustainable growth trend.Third National coroner's inquest in 2006 shows, and China's mortality of malignant tumors adds 83.1% than the mid-1970s, adds 22.5% than the initial stage nineties.Cerebrovascular disease and malignant tumour are China's front two causes of death, account for 22.4% and 22.3% of dead sum respectively.Malignant tumour not only has a strong impact on China's population health, and becomes the important factor of medical expense rise.In addition, because advanced malignant tumor patient outcomes is still dissatisfied, its poor prognosis often involves kith and kin and family, affects social stability.
Although the World Health Organization, national governments and scientific research institution have dropped into a large amount of human and material resources on tumor prevention with treatment, carry out deep research work, make great progress in the diagnosis of tumour, operation, radiation and chemotherapy, but up to the present, a lot of malignant tumour still lacks effective treatment means.Utilize various means to find effective antitumor drug, become the hot subject of life science in world wide.At present clinically for the chemical synthetic drug of oncotherapy, most of mechanism of action all relates to the nucleic acid metabolism of tumour cell, take DNA as action target spot, although play a part very important for oncotherapy, but while inhibition tumor cell propagation, bring great damage also to patient's healthy tissues organ, had a strong impact on the life quality of tumour patient, cause many tumour patients not to be die from chronic consumption exhaustion, but die from the Side effect of Radiotherapy chemotherapy.Therefore, continuation searching and development of new antitumor drug are still one of Main way of current medical research.
Chinese medicine and natural drug have a long history in guarantee human health, disease preventing and treating, and the development practice of world's medicinal industry proves, Chinese medicine, natural drug are always the important sources of innovation drug research.Many natural drugs have the advantages such as toxic side effect is relatively little, action principle is unique, become the important object of anti-cancer agent research and development, one of antitumor lead compound primary study direction having become Natural Medicine Chemistry finding high-efficiency low-toxicity from natural drug.The treatment that taxol, camptothecine, vincaleucoblastine, Cantharidin etc. are widely used in malignant tumour is exactly the successful examples of some of them.Today, from traditional Chinese medicine and natural drug, find the important shortcut that antitumor lead compound is still innovation drug research.
Herba pegani harmalae (Peganum harmala) is zygophyllaceae (Zygophyllaceae) Peganum (Peganum) plant, it is a kind of drought-enduring, cold-resistant, alkaline-resisting, barren-resistant herbaceous plant, Uighur, " this awns of Ah's underground heat ", is mainly distributed in Xinjiang, Gansu, Ningxia, the desert in Qinghai and the Inner Mongol or Semi-desert Area.Herba pegani harmalae is the Uygur nationality, Mongols's medicinal material used for a long time among the people, and medicinal part is mature seed.Herba pegani harmalae is put down, bitter, pungent, poisonous, has firm muscle arteries and veins, supporing yang warm the moon, eliminates the function such as gas of sticky body fluid, dissipation cold-dampness, cures mainly that muscle weak pulse, osteoarthrosis pain, coughing with a lot of sputum, hemiplegia are forgetful, coma headache etc.Herba pegani harmalae is mainly used in the malignant tumours such as treatment cancer of the stomach, liver cancer, colorectal carcinoma, mammary cancer on modern clinic.Clinically, total alkaloid of harmaline preparation reaches 85.7% to the efficient of malignant tumour such as esophagus cancer, cancer of the stomach, cardiac cancer, colorectal carcinomas, and as preparation in institute in Duo Jia affiliated hospital of Chinese Medical Sciences University and Xinjiang Duo Jia hospital application.
In seed of peganum harmala, main active ingredient is alkaloids, and modern pharmacological research shows, Herba pegani harmalae alkaloid has significant anti-tumor activity.But the alkaloidal complicated component of Herba pegani harmalae, people cannot determine specifically which kind of composition has anti-tumor activity or the coefficient result of Multiple components, and this causes its application to have certain blindness, easily occur unnecessary side effect.
Summary of the invention
The object of the present invention is to provide a kind of novel indole alkaloid and application thereof.
Contriver by studying for a long period of time, the Benzazole compounds that isolation identification 1 is new from seed of peganum harmala this compound has good antitumor action to cancer of the stomach, has certain effect to liver cancer and mammary cancer tool simultaneously, and this compound has efficiently, the advantage of low toxicity, will become anti-gastric cancer medicament new on market.
Accompanying drawing explanation
Fig. 1 is the compounds of this invention 1h-NMR collection of illustrative plates;
Fig. 2 is the compounds of this invention 13c-NMR collection of illustrative plates;
Fig. 3 is the HSQC collection of illustrative plates of the compounds of this invention;
Fig. 4 is the HMBC collection of illustrative plates of the compounds of this invention.
Embodiment
extraction and appraisement:
Get the seed of peganum harmala of 10Kg, pulverize rear 70% methyl alcohol heating and refluxing extraction 3 times, each 2 hours, united extraction liquid, with decompression and solvent recovery after filtered through gauze, obtains total medicinal extract, by total medicinal extract 4L water suspendible, add hydrochloric acid and pH is adjusted to 1.0, with equal-volume chloroform extraction twice, removing oil-soluble impurities, pH is adjusted to 7.0 by water layer ammoniacal liquor, uses isopyknic chloroform successively, n-butanol extraction three times, get organic layer, concentrating under reduced pressure recycling design, obtains chloroform layer medicinal extract 220g respectively.
Get n-butyl alcohol extract 200 grams, by adopting the separation method such as silica gel column chromatography and hydroxypropyl dextrane gel (Sephadex LH-20) column chromatography, being separated and obtaining the compounds of this invention.
Structural Identification:
Use 13c-NMR and 1h-NMR carries out Structural Identification to the compound obtained of purifying, 13c-NMR and 1respectively as illustrated in fig. 1 and 2, Fig. 3 is the HSQC collection of illustrative plates of compound to H-NMR spectrum; Fig. 4 is the HMBC collection of illustrative plates of compound.。
? 1h-NMR (500Hz, DMSO-d 6) in, δ h10.24 (1H, s), 7.73 (1H, t, J=5.3Hz) 5.86 (1H, s) are 3 reactive hydrogen signals, wherein δ h10.24 (1H, s) are the NH of Benzazole compounds 1, and there are 3 hydrogen in fragrant district, δ h7.16 (1H, d, J=8.2Hz), 6.52 (1H, dd, J=8.2,2.3Hz) and 6.37 (1H, d, J=2.3Hz) form a typical ABX spin coupling system, and high field region has 1 methoxyl group hydrogen signal δ h3.73 (3H, s), the hydrogen signal δ of 2 methylene radical hthe hydrogen signal δ of 2.88 (2H, m), 1.86 (2H, a m) and methyl h1.71 (3H, s).
? 13c-NMR (125Hz, DMSO-d 6) and hsqc spectrum in can find out, this compound has 13 carbon signals, comprises 1 quaternary carbon δ c74.1 (C-3), 1 methoxyl group carbon atom δ c55.3,2 methylene carbon δ c37.3,33.8,1 methine carbon atom δ c22.6 and 8 sp 2hydbridized carbon atoms, wherein δ c179.5 and 168.9 is two carbonyl carbon, and remaining 6 is then the carbon signal of phenyl ring.
? 13in C-NMR, δ c96.6 and 160.2 and 1a Segment A is there is in ABX system this compound known in H-NMR spectrum.In HMBC spectrum, δ c74.1 and δ c179.5 all with δ h10.24 (1H, s), 5.86 (1H, s) two reactive hydrogens are long-range relevant, therefore can obtain fragment B, and δ h10.24 (NH) simultaneously also with the δ on phenyl ring c123.6,142.9 two carbon are long-range relevant, δ c74.1 with the δ on phenyl ring h7.16 (1H, d, J=8.2Hz) are long-range relevant, therefore can determine that Segment A and fragment B are connected to form fragment C.In HMBC spectrum, δ hthe methyl hydrogen at 1.71 (3H, s) place and δ c168.9 carbonyl carbon are long-range relevant, and δ c168.9 again with δ hthe reactive hydrogen at 7.73 (1H, t, J=5.3Hz) place is long-range relevant, illustrates in this compound to there is an ethanamide group.δ hthe reactive hydrogen at 7.73 (1H, t, J=5.3Hz) place and methylene radical δ c33.8 is long-range relevant, can obtain fragment D accordingly, the methylene radical hydrogen δ in fragment D h1.86 (2H, m) and δ c74.1,123.6,179.5 three carbon signals are long-range relevant, quaternary carbon δ c74.1 have long-range relevant to two methylene radical hydrogen, and comprehensive above-mentioned 1D and 2D data, fragment C and fragment D passes through δ c74.1 and δ c37.3 two carbon are connected.Comprehensive above information, the structure of deterministic compound is systematic naming method is 3-Hydroxy-3-(N-acetyl-2-aminoethyl)-6-methoxyindol-2-one.
Table 1: the hydrogen of compound and carbon signal ownership (DMSO-d6)
After knowing its structural formula, also can obtain the claimed compound of the present invention according to prior art synthesis, or on the basis of extracting the compound obtained, carry out corresponding modification and obtain compound of the present invention, as general formula is compound, in formula, R 1, R 2it is independently the alkyl of C1 ~ C4.
Inhibition test:
Test compounds to the external antitumor activity experiment of human body 6 knurl strains, these 5 knurl strains comprise gastric carcinoma cells SGC7901, BGC-803, human liver cancer cell HepG2, Hep-3B, human breast cancer cell line Bcap-37, Human colon adenocarcinoma cell line Caco-2.
(1) inhibition tumor cell propagation (mtt assay)
By tumor cell inoculation in 96 orifice plates, after cultivating 24h, add sample to be tested, then use mtt assay working sample to the inhibiting rate of tumor cell proliferation after cultivating 48h.Cell proliferation inhibition rate by following formulae discovery, and with the half-inhibition concentration (IC of the tested sample of CalcuSyn computed in software 50), IC 50the composition of <20 μ g/mL will be regarded as active sample;
(2) inducing apoptosis of tumour cell
By tumour cell with 2 × 10 5individual/mL density is inoculated in 6 orifice plates, every hole 3mL.Add sample after cultivating 24h, then cultivate 24h, collecting cell, 1 time is washed, the centrifugal 5min of 1000 × g, with 1mL 3.7% paraformaldehyde re-suspended cell with PBS, room temperature fixes 1h, the centrifugal 5min of 1000 × g, supernatant discarded, 1 time is washed with PBS, cell is resuspended in 100 μ L PBS, obtained cell suspension 10 μ L, adds 2 μ L 1mmol/L Hoechst 33258,37 DEG C of dyeing 15min, observing apoptosis corpusculum under fluorescent microscope.
(3) experimental result: in table 2 and table 3
Table 2 the compounds of this invention is to the restraining effect of different tumour cell
The apoptosis-induced effect of table 3 the compounds of this invention when 2 μMs of concentration to different tumour cell
Note: significantly apoptosis-induced (++), generally apoptosis-induced (+), do not find apoptosis (-).
Experimental result shows: new compound of the present invention has significant antitumor action, particularly to cancer, include but not limited to that cancer of the stomach, liver cancer, mammary cancer and colorectal carcinoma have good therapeutic action, and energy significantly inducing tumor cell generation apoptotic effect, experimental data shows, the in-vitro multiplication restraining effect of the compounds of this invention to human stomach cancer cell line SGC7901 and BGC-803 is better than positive drug cis-platinum.
General formula is (in formula, R 1, R 2the independent alkyl for C1 ~ C4) compound can to dissociate in vivo or metabolism produces the molecule of identical activity, there is significant antitumor action equally.

Claims (6)

1. an indole alkaloid, its general structure is , in formula, R 1, R 2it is independently the alkyl of C1 ~ C4.
2. indole alkaloid according to claim 1, is characterized in that: R 1, R 2independent is methyl or ethyl.
3. indole alkaloid according to claim 1, is characterized in that: R 1, R 2for methyl.
4. the application of indole alkaloid in preparation treatment tumour Chinese traditional medicine, wherein, the structural formula of indole alkaloid is as described in claims 1 to 3 any one.
5. indole alkaloid is preparing the application be of value in tumour patient functional foodstuff, and wherein, the structural formula of indole alkaloid is as described in claims 1 to 3 any one.
6. the application according to claim 4 or 5, is characterized in that: tumour is selected from cancer of the stomach, liver cancer, mammary cancer.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106045896A (en) * 2016-06-30 2016-10-26 山东理工大学 Isatin hydrazide derivatives and preparation method thereof
CN107602438A (en) * 2017-10-13 2018-01-19 福州大学 A kind of arylazo tryptamine derivatives and preparation method thereof
CN115772092A (en) * 2021-09-08 2023-03-10 广州暨清生物医药科技有限公司 Amine compound or pharmaceutically acceptable salt thereof, and preparation and application thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106045896A (en) * 2016-06-30 2016-10-26 山东理工大学 Isatin hydrazide derivatives and preparation method thereof
CN107602438A (en) * 2017-10-13 2018-01-19 福州大学 A kind of arylazo tryptamine derivatives and preparation method thereof
CN115772092A (en) * 2021-09-08 2023-03-10 广州暨清生物医药科技有限公司 Amine compound or pharmaceutically acceptable salt thereof, and preparation and application thereof

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