CN111499608A - Benzo [ c ] benzopyrone derivatives and application thereof - Google Patents

Benzo [ c ] benzopyrone derivatives and application thereof Download PDF

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CN111499608A
CN111499608A CN202010311104.XA CN202010311104A CN111499608A CN 111499608 A CN111499608 A CN 111499608A CN 202010311104 A CN202010311104 A CN 202010311104A CN 111499608 A CN111499608 A CN 111499608A
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benzo
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benzopyrone
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propyl
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周本宏
李妍
韦平
兰昱
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Wuhan University WHU
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Abstract

The invention discloses a benzo [ c ]]Benzopyrone derivatives and their use. Different N-terminal end groups are introduced into the urolithin derivative through a 1, 3-dibromopropane bridge chain, and a series of benzo [ c ] containing Uro B skeleton (shown as formula (I)) is designed and synthesized]Benzopyrone) chemical derivatives. Can be used for preparing various antitumor drugs, especially bladder cancer.
Figure DDA0002457610920000011

Description

Benzo [ c ] benzopyrone derivatives and application thereof
Technical Field
The invention belongs to the field of medicinal chemistry, and particularly relates to a benzo [ c ] benzopyrone derivative and application thereof in treating cancer diseases.
Background
Bladder cancer is the most common malignancy of the urinary system. The biological behavior of bladder tumor is complex and changeable, and the bladder tumor is easy to recur, invade and transfer. Apart from surgery, systemic chemotherapy has become the standard treatment for metastatic bladder cancer. The chemotherapy drugs commonly used for treating bladder cancer include adriamycin, hydroxycamptothecin, mitomycin and the like, however, because of the wide occurrence of drug resistance, bladder cancer cells are less sensitive to the drugs at present, and the clinical application effect of the existing drugs is poor. Therefore, the development of new anti-bladder cancer drugs is more and more urgent, and the search for low-toxicity and high-efficiency anticancer lead compounds from natural drugs is one of the hot spots of medical research.
Phenolic compounds such as ellagitannins are secondary metabolites of fruits and vegetables, are beneficial to human health, and have been shown to be involved in antioxidant, anti-inflammatory, and potential tumor prevention. In recent years, a great deal of research is carried out on Chinese medicinal materials rich in ellagitannins by a plurality of researchers, and the result shows that the content of the ellagitannins in organisms is low, the ellagitannins cannot reach the concentration of the ellagitannins which can exert the biological activity, and the ellagitannins are mostly further metabolized into ellagic acid and Urolithins (Uro) which are easier to absorb under the action of intestinal flora in the bodies, so the uroritins can be true substances of the ellagitannins which can exert the biological activity in the bodies.
Chemically, Urolithins are benzo [ c ] benzopyrone derivatives with different hydroxyl substitutions. Urolithins is found in plasma mostly in the form of a micromolar concentration of dextran glycoside. The Urolithins skeleton can be regarded as that benzene rings are combined with cis-o-hydroxy cinnamic acid lactone, and the hydroxy groups of Uro B, Uro A, Uro C and Uro D are increased in sequence according to the number of phenolic hydroxy groups. At present, research on the urolithin derivatives is less, and the research mainly focuses on the activity research of the urolithin glucuronic acid derivatives and the modification of coumarin structures similar to the urolithin glucuronic acid derivatives. The glucuronic acid acidification and sulfation forms of the compound are proved to have protective effect on myocardial cells, and the introduction of meta-N-benzyl can be used as a cholinesterase inhibitor, and in addition, the compound has potential application prospect in the treatment of Alzheimer's disease. However, no research on the urolithin skeleton derivatives has been found in the field of anticancer.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a benzo [ c ] benzopyrone derivative with a structure shown in a general formula (I) or a pharmaceutically acceptable salt thereof. Different N-terminal end groups are introduced into the Urolithin derivatives through a 1, 3-dibromopropane bridge chain, a series of chemical derivatives containing Uro B skeleton (benzo [ c ] benzopyrone) are designed and synthesized, the core of the design is to improve the water solubility of Urolithin, enhance the bioavailability of Urolithin and obtain stronger biological activity for inhibiting the proliferation of tumor cells.
The invention also aims to provide application of the benzo [ c ] benzopyrone derivative in preparing medicaments for treating cancer diseases.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a benzo [ c ] benzopyrone derivative with a structure of general formula (I) or a derivative thereof is provided
Figure BDA0002457610900000021
Pharmaceutically acceptable salts:
wherein,
z is substituted or unsubstituted-O (CH2) n-, n is an integer of 2-6, the substituent is hydroxyl or halogen, or a carbon chain in Z contains double bonds or oxygen atoms;
m is 0, 1 or 2;
x is O, N or one of CH;
r is one or more of hydrogen, substituted or unsubstituted C1-5 alkyl, hydroxyl, tert-butyloxycarbonyl and carbonyl.
Preferably, the benzo [ C ] benzopyrone derivative or pharmaceutically acceptable salt with the structure of the general formula (I), wherein the substituted C1-5 alkyl is selected from halogen substituted C1-5 alkyl, the halogen is fluorine, chlorine, bromine and iodine, and the unsubstituted C1-5 alkyl is selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl or isopentyl.
Preferably, the benzo [ c ] benzopyrone derivative or pharmaceutically acceptable salt with the structure of the general formula (I) is selected from any one of the following compounds or pharmaceutically acceptable salts thereof:
3- (3- (4-methylpiperazin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1901);
3- (3-morpholin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1902);
3- (3- (4-methylpiperidin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1903);
3- (3- (pyrrolidinyl-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1905).
Preferably, the benzo [ c ] benzopyrone derivative or pharmaceutically acceptable salt with the structure of the general formula (I) is a salt containing a pharmaceutically acceptable anion: any one of hydrochloride, hydrobromide, hydroiodide, nitrate, sulfate or bisulfate, phosphate or acid phosphate, acetate, lactate, citrate, tartrate, maleate, fumarate, methanesulfonate, gluconate, saccharate, benzoate, ethanesulfonate, benzenesulfonate and p-toluenesulfonate.
The general synthetic method of the benzo [ c ] benzopyrone derivative with the structure of the general formula (I) is formed by connecting a benzo [ c ] benzopyrone parent body with a nitrogen-containing structure through a carbon-containing chain,
Figure BDA0002457610900000031
in a second aspect, there is provided a pharmaceutical composition comprising an amount of a benzo [ c ] benzopyrone derivative or a pharmaceutically acceptable salt thereof having a structure of formula (I) sufficient to exert anticancer activity and a pharmaceutically acceptable excipient.
Preferably, the pharmaceutical composition comprises pharmaceutically acceptable excipients which are inert solid fillers or diluents and sterile aqueous solution or organic solvents.
Benzo [ c ] benzopyrone derivatives having the structure of formula (I) may contain a chiral center and thus may exist in different enantiomeric and diastereomeric forms. The present invention relates to all optical isomers and all stereoisomers of the compounds of general formula (I), as racemic mixtures and in the form of individual enantiomers and diastereomers of such compounds, and to methods of treatment of all pharmaceutical compositions containing or using them, as defined above.
In a third aspect, an application of the benzo [ c ] benzopyrone derivative with the structure of the general formula (I) or the pharmaceutically acceptable salt or the pharmaceutical composition in preparing a medicament for treating cancer diseases is provided.
Preferably, the cancer-like disease is bladder cancer.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
CCK-8 experiment results for detecting cancer cell proliferation activity show that the compound hydrochloride has obvious proliferation inhibition effect on human bladder cancer cell T24, and particularly the derivative BH1905 shows the inhibition activity which is optimal to a positive control medicament. Therefore, the compound can be applied to preparing various antitumor drugs, and is particularly suitable for bladder cancer.
Drawings
FIG. 1 is a nuclear magnetic resonance hydrogen spectrum of a compound BH 1901;
FIG. 2 is a NMR spectrum of Compound BH 1902;
FIG. 3 is a hydrogen nuclear magnetic resonance spectrum of compound BH 1903;
FIG. 4 is a hydrogen nuclear magnetic resonance spectrum of compound BH 1905;
Detailed Description
The features and advantages of the present invention will be further understood from the following detailed description taken in conjunction with the accompanying drawings. The examples provided are merely illustrative of the method of the present invention and do not limit the remainder of the disclosure in any way. Example 1 preparation of 3- (3- (4-methylpiperazin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH1901)
Reaction scheme 1
Figure BDA0002457610900000041
1) And (3) sequentially weighing urolithin B (20.2g), 1, 3-dibromopropane (40.4g) and potassium carbonate (27.6g) in a 500m L round-bottom flask, heating and reacting for 2h at 50 ℃ by using acetone (200m L) as a solvent, monitoring by thin-layer chromatography (T L C), stopping the reaction until a light blue raw material fluorescence spot disappears, carrying out spin-drying on a system, dissolving the solid powder in petroleum ether, carrying out secondary spin-drying, eluting by using silica gel as a stationary phase sequentially using petroleum ether and ethyl acetate as a ratio of 1:0, 20:1, 10:1 and 8:1, and concentrating to obtain 14.4g of white powdery solid, and verifying by nuclear magnetic resonance to obtain the target compound, namely, the dibromopropane urolithin B intermediate.
2) The target compound is synthesized by sequentially taking 2.2g of an intermediate, 1.1g of 4-methylpiperazine, 1.1g of potassium carbonate and 20m of L acetonitrile, adding the intermediate into a 100m L round-bottom flask, refluxing at 60 ℃ for 2h, feeding materials according to a molar ratio of 1:1:2, during the reaction, the system exists in a suspension form, the proportion of large and small polarity fluorescent spots is not changed, stopping the reaction after the reaction is detected by T L C, repeatedly adding acetonitrile to spin-dry the system, adding 5.4g of silica gel, sequentially frying with methanol and dichloromethane as solvents, taking the silica gel as a stationary phase, carrying out forward elution with dichloromethane and methanol of 1:0, 20:1, 10:1 and 0:1, concentrating to obtain 0.6g of a yellow white viscous solid, redissolving with 5ml of methanol, taking a thick silica gel plate as a stationary phase and methanol as a rotary normal phase, separating the thin layer plate, scraping all silica gel on which the upper blue fluorescent stripe is located on the bottom of a deep blue fluorescent stripe, dissolving the methanol under heating at 60 ℃, stirring, carrying out dry filtration, and obtaining a yellow solid with a yellow nuclear magnetic resonance structure shown in a drawing, and obtaining a picture of.
3) Preparation of hydrochloride salt: saturated ethyl acetate hydrochloride solution is prepared firstly, and the principle is that high boiling point acid is used for preparing low boiling point acid. Reacting excessive concentrated sulfuric acid with sodium chloride to generate hydrogen chloride gas and sodium bisulfate, and introducing the hydrogen chloride gas into an ethyl acetate solution to obtain the catalyst. And introducing a compound dissolved by ethyl acetate, oscillating, observing that snowflake-shaped particles are separated out, gradually forming milky floccule precipitates along with the reaction, standing, performing suction filtration to obtain white needle-shaped crystals, and drying to constant weight.
White needle-shaped crystals are obtained. 1H NMR (400MHz, DMSO-d6)8.30(d, J ═ 8.1Hz,1H, Ar-H),8.26 to 8.17(m,2H, Ar-H),7.90(t, J ═ 7.1Hz,1H, Ar-H),7.59(t, J ═ 7.6Hz,1H, Ar-H),7.04 to 6.88(m,2H, Ar-H),4.10(t, J ═ 6.3Hz,2H, -CH2 "), 2.48 to 2.17(m,10H, -CH 2"), 2.14(s,3H, N-CH3),1.93 to 1.83(m,2H, -CH2-), anal.calcd for C21H24O3N2, ESI-MS: 352.43[ M + H ] +
Example 2 preparation of 3- (3-morpholin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH1902)
The title compound was prepared as in example 1, substituting morpholine for 4-methylpiperazine. White crystals are obtained. As shown in fig. 2. 1H NMR (400MHz, DMSO-d6)8.29(d, J ═ 8.1Hz,1H, Ar-H),8.25 to 8.15(m,2H, Ar-H),7.89(t, J ═ 7.6Hz,1H, Ar-H),7.58(t, J ═ 7.5Hz,1H, Ar-H),6.97(dd, J ═ 4.5,2.2Hz,2H, Ar-H),4.10(t, J ═ 6.3Hz,2H, O-CH2),3.57(t, J ═ 4.4Hz,4H, -CH2-O-CH2),2.41(dd, J ═ 18.6,11.4Hz,6H, N-CH2),1.90(p, J ═ 6.6, CH 2H, -2H, cd 20 Hz, C — 5920 Hz, C: 339.38[ M + H ] +.
Example 3 preparation of 3- (3- (4-methylpiperidin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH1903)
The title compound was prepared by substituting 4-methylpiperazine for 4-methylpiperidine according to the procedure of example 1. Yellow crystals are obtained. As shown in fig. 3. 1H NMR (400MHz, DMSO-d6)8.17 to 8.27(m,3H, Ar-H),7.87(t, J ═ 7.5Hz,1H, Ar-H),7.56(t, J ═ 7.5Hz,1H, Ar-H),6.93(d, J ═ 6.8Hz,2H, Ar-H),4.06(t, J ═ 5.8Hz,2H, -O-CH2-),2.81(d, J ═ 10.9Hz,2H),2.39(t, J ═ 6.9Hz,2H, -CH2-),1.84(t, J ═ 9.6Hz,4H, -CH2-),1.54(d, J ═ 12.0Hz,2H, -CH2-),1.27(s, 1H-), 1H ═ 11, 1.11 ═ CH 11, 10H, -CH2-),1.54(d, J ═ 12.10H, — 10H, — 11H, — 2H, — 11H, 10H, — 11H, 10H, — 11H, — 2H, — 10H, — 2H, — 11H: 351.44[ M + H ] +.
Example 4 preparation of 3- (3- (pyrrolidin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH1905)
The title compound was prepared by the method of example 1, substituting 4-methylpiperazine for pyrrolidine. White crystals are obtained. As shown in fig. 4. 1H NMR (400MHz, DMSO-d6)8.29(d, J ═ 8.1Hz,1H, Ar-H),8.25 to 8.14(m,2H, Ar-H),7.89(t, J ═ 8.2Hz,1H, Ar-H),7.58(t, J ═ 7.6Hz,1H, Ar-H),6.97(dd, J ═ 6.5,2.3Hz,2H, Ar-H),4.10(t, J ═ 6.3Hz,2H, -O-CH2-),2.62(t, J ═ 7.3Hz,2H, -CH2-),2.00 to 1.85(m,6H, -CH2-),1.71(s,4H, -CH2-), anal.esi for C20H21O3 MS 3N: 323.44[ M + H ] +.
Table 1: number of Compounds prepared in examples and structural formulas thereof
Figure BDA0002457610900000061
[ example 5 ] in vitro anti-human bladder cancer cell T24 proliferation Activity study of derivatives
Adopts CCK-8[2- (2-methoxy-4-nitrophenyl) -3- (4-nitrophenyl) -5- (2, 4-disulfonic acid benzene) -2H-tetrazole monosodium salt]Method for measuring the Inhibitory Concentration (IC) of a urolithin derivative on T24 cells of human bladder cancer50)。
1) T24 cell culture and passage: the complete culture medium is RPMI-1640 culture medium: fetal bovine serum: qing-streptomycin ═ 90:10: 1; at 37 ℃ with 5% CO2As shown in FIG. 1, the culture was carried out in an incubator saturated with humidity. When the cell growth density is more than 80%, digesting with trypsin digestion solution containing 0.05% EDTA, observing the cells in suspension state under a microscope, stopping digestion with complete culture medium, centrifuging at 1000r/min for 5 minutes, pouring out supernatant, resuspending the cells with fresh culture medium, and carrying out passage at a ratio of 1: 4.
2) Preparing liquid medicine and grouping administration: the hydrochloride of the compound to be tested in the experimental group is dissolved by a basic culture medium and diluted to different concentration gradients, and 5-fluorouracil is used as a positive control drug. And a blank group and a normal control group are additionally arranged, wherein the blank group is only culture medium liquid with the same amount so as to eliminate the influence of the color of the culture medium on the absorbance, and the normal control group is only added with the culture medium and the cells and is not added with a test medicament.
3) And (3) activity determination: taking T24 cells in logarithmic growth phase, adjusting cell density by a cell counter, and then carrying out cell density adjustment at 1x10 per hole5The density of (A) was inoculated in a 96-well plate, 6 multiple wells were set, and 5% CO was performed at 37 ℃2Culturing in an incubator. Adherent culture for 24 hoursAnd then, abandoning cell supernatant, respectively adding 200 mu L6 of each derivative with different concentrations, continuously culturing, taking out the plate after the drugs are respectively stimulated for 24 hours, 36 hours and 48 hours, abandoning the supernatant, adding 100 mu L of serum-free culture medium containing 5 percent of CCK8, incubating in an incubator for 1 to 2 hours, and measuring the absorbance value (A) at 450nm of an enzyme-labeling instrument.
Each set of experiments was repeated 3 times. According to the formula: the cell growth inhibition (%) was (normal control a value-experimental a value)/(normal control a value-blank a value) x 100%), and the T24 cell inhibition (%) was calculated. Median Inhibitory Concentration (IC)50) Defined as the drug concentration when 50% of the tumor cells survived. A standard curve of the cell growth inhibition rate is prepared based on the measured A value, and the corresponding drug concentration is determined on the standard curve.
Measured IC50See table 2.
TABLE 2 Activity of the individual Compounds HCl on human bladder cancer cells T24
Figure BDA0002457610900000071

Claims (8)

1. A benzo [ c ] benzopyrone derivative with a structure shown as a general formula (I) or a pharmaceutically acceptable salt thereof is characterized in that,
Figure FDA0002457610890000011
wherein,
z is substituted or unsubstituted-O (CH2) n-, n is an integer of 2-6, the substituent is hydroxyl or halogen, or a carbon chain in Z contains double bonds or oxygen atoms;
m is 0, 1 or 2;
x is O, N or one of CH;
r is one or more of hydrogen, substituted or unsubstituted C1-5 alkyl, hydroxyl, tert-butyloxycarbonyl and carbonyl.
2. The benzo [ C ] benzopyrone derivative or its pharmaceutically acceptable salt with the structure of general formula (I) according to claim 1, wherein the substituted C1-5 alkyl is selected from C1-5 alkyl substituted by halogen, the halogen is fluorine, chlorine, bromine, iodine, and the unsubstituted C1-5 alkyl is selected from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl or isopentyl.
3. The benzo [ c ] benzopyrone derivative having the structure of the general formula (I) or the pharmaceutically acceptable salt thereof according to claim 1, wherein the compound is selected from any one of the following compounds:
3- (3- (4-methylpiperazin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1901);
3- (3-morpholin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1902);
3- (3- (4-methylpiperidin-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1903);
3- (3- (pyrrolidinyl-1-yl) -propyl) -6H-benzo [ c ] chromen-6-one (BH 1905).
4. The benzo [ c ] benzopyrone derivative having the structure of the general formula (I) or the pharmaceutically acceptable salt thereof according to claim 1, wherein the salt is a salt containing a pharmaceutically acceptable anion: any one of hydrochloride, hydrobromide, hydroiodide, nitrate, sulfate or bisulfate, phosphate or acid phosphate, acetate, lactate, citrate, tartrate, maleate, fumarate, methanesulfonate, gluconate, saccharate, benzoate, ethanesulfonate, benzenesulfonate and p-toluenesulfonate.
5. A pharmaceutical composition, which comprises a therapeutically effective amount of the benzo [ c ] benzopyrone derivatives or pharmaceutically acceptable salts thereof having the structure of the general formula (I) as claimed in any one of claims 1 to 4, and pharmaceutically acceptable excipients.
6. The pharmaceutical composition of claim 5, wherein the pharmaceutical composition comprises inert solid fillers or diluents and sterile aqueous solution or organic solvent as pharmaceutically acceptable excipients.
7. Use of the benzo [ c ] benzopyrone derivatives having the structure of general formula (I) or pharmaceutically acceptable salts thereof according to any one of claims 1 to 4 or the pharmaceutical compositions according to claim 5 or 6 for the preparation of a medicament for the treatment of cancer diseases.
8. The use according to claim 7, wherein the cancer-like disease is bladder cancer.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113336735A (en) * 2021-06-08 2021-09-03 常州大学 Urolithin compound, preparation method, pharmaceutical composition and application

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CN109928963A (en) * 2019-04-02 2019-06-25 武汉大学 The synthetic method and application of a kind of three carbochain methyl piperidine urolithin B of antibacterials and its hydrochloride

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CN113336735A (en) * 2021-06-08 2021-09-03 常州大学 Urolithin compound, preparation method, pharmaceutical composition and application
CN113336735B (en) * 2021-06-08 2022-09-30 常州大学 Urolithin compound, preparation method, pharmaceutical composition and application

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