CN108727397A - phenanthridine derivatives - Google Patents

phenanthridine derivatives Download PDF

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CN108727397A
CN108727397A CN201810525158.9A CN201810525158A CN108727397A CN 108727397 A CN108727397 A CN 108727397A CN 201810525158 A CN201810525158 A CN 201810525158A CN 108727397 A CN108727397 A CN 108727397A
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compound
phenanthridines
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nmr
och
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CN108727397B (en
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宋伟国
万明慧
李书涛
张磊
王西龙
甲宗青
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Daohe Jinan Pharmaceutical Technology Co ltd
Daohe Weifang Pharmaceutical Technology Co ltd
Shandong Daohe Pharmaceutical Co ltd
Weifang Medical University
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Dongying Dao Yi Biological Medicine Science And Technology Co Ltd
Shanghai Dao Medical Science And Technology Co Ltd
Weifang Medical University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D491/00Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/12Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
    • C07D491/14Ortho-condensed systems
    • C07D491/153Ortho-condensed systems the condensed system containing two rings with oxygen as ring hetero atom and one ring with nitrogen as ring hetero atom
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D221/00Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/04Ortho- or peri-condensed ring systems
    • C07D221/06Ring systems of three rings
    • C07D221/10Aza-phenanthrenes
    • C07D221/12Phenanthridines
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D491/00Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04Ortho-condensed systems
    • C07D491/056Ortho-condensed systems with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring

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Abstract

The invention mainly relates to chemosynthesis technical fields, and in particular to phenanthridine derivatives, the i.e. compound of general formula I,Wherein R1、R2It is 1 or 2-OCH2O- ,-OCH3, H, by mtt assay measurement antitumor activity of compound, the DNA uncoiling experiment that topoisomerase I, II mediate, the compound of the present invention shows excellent antitumor activity, certain inhibiting effect is all had to topoisomerase I, II.

Description

Phenanthridine derivatives
Technical field
The invention mainly relates to chemosynthesis technical fields, and in particular to phenanthridine derivatives.
Background technology
Sanguinarine (sanguinarine) is a kind of important isoquinoline alkaloid, is widely present in natural plant In, it can extract obtain from the plants such as snowpoppy, the wooden opium poppy, greater celandine, macleaya cordata at present.Because its parent nucleus-phenanthridines ring has Larger aromatic conjugated system can interact with DNA, to make phenanthridines class compound have extraordinary bioactivity And pharmaceutical activity.Sanguinarine is most added into toothpaste initially as a kind of antibacterial anti-inflammatory substance, can effectively reduce plaque and The generation of gingivitis, in terms of being applied to animal health later, such as long-term anti-trypanosomiasis medicine-Samorin, it can pass through suppression The DNA and RNA polymerase of trypanosome processed, and effectively hinder the synthesis of nucleic acid.In recent years mainly for the antitumor work of sanguinarine Property conduct in-depth research, it is found that sanguinarine can influence when cellular replication topoisomerase in core with arresting cell cycle Content, blocks tumor cells proliferation, inducing apoptosis of tumour cell.Therefore, it is intended that by the structure of modification to sanguinarine, hair The strong compound of existing high-efficiency low-toxicity, druggability.
Invention content
The technical problem to be solved by the present invention is to:By to sanguinarine structure of modification with modification, synthesize high-efficiency low-toxicity, The strong compound of druggability.
A series of phenanthridine derivatives of transformation provided by the present invention by sanguinarine structure and modification synthesis, such as formula I compound,
Wherein, R1、R2It is 1 or 2-OCH2O- ,-OCH3, H.
The compound is selected from:
The preparation method of above compound, synthetic route are as follows:
Wherein R, R1、R2It is 1 or 2-OCH2O- ,-OCH3, H;
Include the following steps:
(1) it is reacted first with N- bromo-succinimides by aminated compounds and generates a series of bromophenyl amine chemical combination Object;
(2) after, bromophenyl aminated compounds is with phenyl boric acid at 80 DEG C with PdCl2(PPh3)2As catalyst, pass through Suzuki coupling reactions generate 2- diphenyl amine compounds, and 2- diphenyl amines compound is under the action of formic acid by primary amine methyl Change, is then dehydrated under the action of phosphorus oxychloride and triethylamine, ultimately generates a series of 2- isonitrile base biphenyl compounds;
(3) then, 2- isonitrile base biphenyl compound can occur certainly under benzoyl peroxide initiation with carbon tetrachloride By base addition reaction and intramolecular cyclization reaction, phenanthridines class compound is successfully obtained.
The bromophenyl aminated compounds is selected from A1~A5 compounds represented:
The 2- isonitrile base biphenyl compound is selected from B1~B20 compounds represented:
Compound shown in above-mentioned C1~C14 is expected to become the antitumoral compounds with Development volue.
As antitumoral compounds, the present invention provides the screening active ingredients of compound antitumor effect shown in C1~C14.
The present invention uses mtt assay first, is carried out with 5 μm of compounds of concentration pair 14 of ol/L and 1 μm of ol/L two antitumor Screening active ingredients find that compound C1, C2, C5, C13 are equal to MCF-7, PC3, Hela tumour cell in 5 μm of ol/L and 1 μm of ol/L With higher inhibiting rate, therefore the present invention chooses compound tetra- preferable compounds of activity of C1, C2, C5, C13 and continues IC50Value measures, and finds IC of this 4 compounds of C1, C2, C5, C13 to MCF-7, PC3, Hela, A549, HepG2 cell50Value Respectively less than sanguinarine is less than Etoposide.
Then, the present invention is whether verification phenanthridines class compound acts on topoisomerase, and spiral shell is solved using pBR 322DNA Inhibiting effect of measuring phenanthridines class compound C1, C2, C5, the C13 to topoisomerase I/II is revolved, discovery C1 is topoisomerase I/II double inhibitors of enzyme, C2, C5, C13 are topoisomerase II inhibitor.
Description of the drawings
Fig. 1 is bromophenyl amine compound synthesis route map;
Fig. 2 is the synthetic route chart of 2- isonitrile base biphenyl compounds;
Fig. 3 is the synthetic route chart of phenanthridines class compound;
Fig. 4 is that C1, C2, C5, C13 inhibit topoisomerase I activity figure in vitro;
Fig. 5 is that C1, C2, C5, C13 inhibit type Ⅱ topoisomerase activity figure in vitro.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.
Embodiment 1:Prepare bromophenyl aminated compounds
It is prepared according to attached synthetic route chart shown in FIG. 1.
Operating procedure is as follows:Under condition of ice bath, aminated compounds is dissolved with isopropanol, di-tert-butyl dicarbonate is added dropwise, After dripping off, 2h is reacted at room temperature, thin-layer chromatography detection stops reaction, filtered, filter cake is put in air dry oven after the reaction was complete 40 DEG C are dried overnight, and above-mentioned dried product is dissolved with acetonitrile, N- bromo-succinimides are slowly added dropwise, is continued after dripping off To thin-layer chromatography detection, the reaction was complete for heat preservation, is filtered again after stopping reaction, filter cake is dissolved with dichloromethane, ice bath (0-5 DEG C) trifluoroacetic acid is added dropwise, subsequent continuation of insurance temperature is dripped off to the reaction was complete, finally adjusts pH to 8-9, dichloromethane with saturated sodium bicarbonate Alkane layer is washed with saturated common salt, anhydrous Na2SO4Dry, rotation can be obtained product after being evaporated.
Embodiment 2:Prepare 2- isonitrile base biphenyl compounds
It is prepared according to attached synthetic route chart shown in Fig. 2.
Operating procedure is as follows:Under nitrogen protection, by adjacent amino benzenes compounds 1 (8mmol, 1.0eq), phenylboronic acid compound 2 (9.6mmol, 1.25eq), Anhydrous potassium carbonate (2eq), Isosorbide-5-Nitrae-dioxane:Water (V:V=20:1), catalyst PdCl2 (PPh3)2(0.1eq) is put into the 100mL single-necked flasks of drying, is warming up to 80 DEG C of back flow reaction 5h.It is anti-through thin-layer chromatography detection Should be completely rear cool but to room temperature, ethyl acetate extraction concentration, column chromatography for separation (eluant, eluent n-hexane is added:Ethyl acetate=5: 1) 2- diphenyl amines compound 3, is obtained.Compound 3 is put into and is evaporated in flask, solvents tetrahydrofurane (50ml), formic acid is added (16eq) is warming up to 85 DEG C, back flow reaction 5h, after the reaction was complete through TLC detections, is cooled to room temperature, rotates away solvent, be added Anhydrous Na is added after being washed with saturation NaCl solution in ethyl acetate extraction concentration, organic phase2SO4Dry, silica gel post separation obtains chemical combination Object 4.Compound 4 is added in two mouth flask, solvents tetrahydrofurane (5ml) is added, NEt is added after dissolving3(1.62ml), it is cold But to POCl is slowly added dropwise after 0 DEG C3(0.28mL,11mmol).After reaction through thin-layer chromatography detection, with saturation Na2CO3It is molten Liquid is quenched, and stirs 1h.Ethyl acetate extraction concentration, organic phase anhydrous Na is added2SO4Solvent, silica gel post separation are spin-dried for after drying Obtain 2- isonitrile base biphenyl compounds.
2- isonitrile base biphenyl compound structured datas are characterized as below:
2- isonitrile -4,5,3 ', 4 '-two sub- methoxyl biphenyls (B1).White-yellowish solid;Yield:78%;Fusing point:154.4- 156.1℃。1H NMR (400MHz, CDCl3) δ 6.90 (d, J=8.9Hz, 4H), 6.78 (s, 1H), 6.05 (s, 2H), 6.01 (s, 2H)。
2- isonitrile -4,5- Asia methoxyl biphenyls (B2).Brown solid;Yield:80%;Fusing point:90.1-90.3℃.1H NMR (400MHz, CDCl3) δ 7.54-7.30 (m, 5H), 6.91 (s, 1H), 6.82 (s, 1H), 6.05 (s, 2H).
2- isonitrile -4- methoxyl group -4,5- Asia methoxyl biphenyls (B3).White solid;Yield:81%;Fusing point:132- 133.1℃。1H NMR (400MHz, CDCl3) δ 7.39 (d, J=8.7Hz, 2H), 6.98 (d, J=8.7Hz, 2H), 6.90 (s, 1H), 6.80 (s, 1H), 6.05 (s, 2H), 3.85 (s, 3H).
2- isonitrile-the 2 '-Asias methoxyl group -4,5- methoxyl biphenyl (B4).White-yellowish solid;Yield:82%;Fusing point: 139.4-140.7℃。1H NMR (400MHz, CDCl3) δ 7.43-7.34 (m, 1H), 7.20 (dd, J=7.5,1.8Hz, 1H), 7.07-6.96 (m, 2H), 6.90 (s, 1H), 6.79 (s, 1H), 6.05 (s, 2H), 3.83 (s, 3H).
2- isonitrile -2 ', 4 '-dimethoxy-4 's, the Asias 5- methoxyl biphenyl (B5).Brown solid;Yield:79%;Fusing point: 161.4-161.9℃。1H NMR (400MHz, CDCl3) δ 7.10 (s, 1H), 6.88 (s, 1H), 6.77 (s, 1H), 6.56 (dt, J =5.2,2.5Hz, 2H), 6.04 (s, 2H), 3.85 (s, 3H), 3.81 (s, 3H).
2- isonitrile-the 5- 4 '-methylene of methoxyl group -3 ' oxygroups (B6).White-yellowish solid;Yield:81%;Fusing point:119.6- 120.1℃。1H NMR (400MHz, DMSO) δ 7.58 (d, J=8.6Hz, 1H), 7.12 (d, J=1.7Hz, 1H), 7.09-6.95 (m, 4H), 6.10 (s, 2H), 3.84 (s, 3H).
2- isonitrile -5- methoxyl biphenyls (B7).Dark oil object;Yield:83%.1H NMR (400MHz, DMSO) δ 7.62 (d, J=8.7Hz, 1H), 7.58-7.42 (m, 5H), 7.08-6.99 (m, 2H), 3.85 (s, 3H).
2- isonitrile -3 ', 4 '-methylene oxygroups (B8).Green solid;Yield:85%;Fusing point:71.6-73.9℃.1H NMR (400MHz, CDCl3) δ 6.02 (s, 2H), 7.02-6.94 (m, 2H), 6.94-6.87 (m, 1H), 7.46 (d, J=9.3Hz, 1H), 7.43-7.30 (m, 3H).
4 '-dimethoxy-biphenyl of 2- isonitrile -2 ' (B9).White-yellowish solid;Yield:79%;Fusing point:90.1-90.5℃.1H NMR (400MHz, CDCl3) δ 7.41 (ddd, J=8.9,7.4,1.8Hz, 2H), 7.38-7.29 (m, 2H), 7.18-7.10 (m, 1H), 6.58 (dd, J=5.7,2.2Hz, 2H), 3.86 (s, 3H), 3.81 (s, 3H).
The 2- 4 '-trimethoxy of isonitrile -5,2 ' biphenyl (B10).Yellow solid;Yield:80%;Fusing point:104.6-104.9 ℃。1H NMR (400MHz, CDCl3) δ 7.35 (d, J=8.4Hz, 1H), 7.14 (d, J=8.9Hz, 1H), 6.88-6.79 (m, 2H), 6.58 (dd, J=5.4,2.3Hz, 2H), 3.86 (s, 3H), 3.82 (s, 6H).
2- isonitrile -4- methoxyl groups -3 ' 4 '-Asia methoxyl biphenyl (B11).White-yellowish solid;Yield:75%;Fusing point: 120.6-120.9℃。1H NMR (400MHz, CDCl3) δ 7.28 (d, J=8.4Hz, 1H), 7.02-6.86 (m, 5H), 6.02 (s, 2H), 3.85 (s, 3H).
2- isonitrile -4- methoxyl biphenyls (B12).Yellow solid;Yield:78%;Fusing point:117.3-117.6℃.1H NMR (400MHz, CDCl3) δ 7.53-7.43 (m, 4H), 7.43-7.36 (m, 1H), 7.33 (d, J=9.0Hz, 1H), 7.05-6.97 (m, 2H), 3.86 (s, 3H).
2- isonitrile -4,4 '-dimethoxy-biphenyl (B13).Tan solid;Yield:83%;Fusing point:102.4-102.8 ℃。1H NMR (400MHz, CDCl3) δ 7.44-7.37 (m, 2H), 7.30 (d, J=9.0Hz, 1H), 6.99 (d, J=9.0Hz, 4H), 3.85 (d, J=4.0Hz, 6H).
2- isonitrile -4,2 '-methoxyl biphenyl (B14).White solid;Yield:82%;Fusing point:125.5-126℃.1H NMR (400MHz, CDCl3) δ 7.48-7.34 (m, 1H), 7.33-7.17 (m, 2H), 7.08-6.94 (m, 4H), 3.84 (d, J= 5.4Hz,6H)。
2- isonitrile -4,2 ', 4 '-trimethoxy biphenyl (B15).White-yellowish solid;Yield:80%;Fusing point:105.9- 107.3℃。1H NMR (400MHz, CDCl3) δ 7.26 (d, J=1.7Hz, 1H), 7.12 (d, J=8.9Hz, 1H), 7.01-6.93 (m, 2H), 6.61-6.53 (m, 2H), 3.90-3.79 (m, 9H).
2- isonitrile -4,5- dimethoxys -3 ', 4 '-sub- methoxyl biphenyls (B16).Brown solid;Yield:84%;Fusing point: 171.7-172.3℃。1H NMR (400MHz, CDCl3) δ 6.99-6.86 (m, 4H), 6.80 (s, 1H), 6.02 (s, 2H), 3.91 (d, J=2.5Hz, 6H).
2- isonitrile -4,5- dimethoxy-biphenyls (B17).White-yellowish solid;Yield:82%;Fusing point:139.4-139.9℃ 。1H NMR (400MHz, DMSO) δ 7.27 (s, 1H), 7.01 (s, 1H), 3.85 (d, J=3.7Hz, 5H), 7.58-7.47 (m, 3H), 7.47-7.39 (m, 1H).
2- isonitrile -4,5,4 '-trimethoxy biphenyl (B18).Tan solid;Yield:84%;Fusing point:102.7-103.7 ℃。1H NMR (400MHz, CDCl3) δ 7.43 (d, J=8.7Hz, 2H), 7.00 (d, J=8.7Hz, 2H), 6.93 (s, 1H), 6.82 (s, 1H), 3.92 (d, J=1.5Hz, 6H), 3.86 (s, 3H).
2- isonitrile -4,4,2 '-trimethoxy biphenyl (B19).Yellow solid;Yield:83%;Fusing point:103-103.6℃.1H NMR (400MHz, CDCl3) δ 7.44-7.35 (m, 1H), 7.28-7.20 (m, 1H), 7.09-6.98 (m, 2H), 6.94 (s, 1H), 6.82 (s, 1H), 3.94-3.82 (m, 9H).
2- isonitrile -4,5,2 ', 4 '-tetramethoxy biphenyl (B20).White-yellowish solid;Yield:82%;Fusing point:123.4- 123.9℃。1H NMR (400MHz, CDCl3) δ 7.15 (d, J=8.9Hz, 1H), 6.92 (s, 1H), 6.79 (s, 1H), 6.57 (dq, J=4.2,2.4Hz, 2H), 3.91 (s, 3H), 3.88 (s, 3H), 3.86 (s, 3H), 3.82 (s, 3H).
From the foregoing, it will be observed that 2- isonitrile base biphenyl compound structures are correct.
Embodiment 3:Prepare phenanthridines class compound
It is prepared according to attached synthetic route chart shown in Fig. 3.
Operating procedure is as follows:2- isonitrile biphenyl compound (0.50mol) is added in single-necked flask, peroxidating is added Benzoyl (1.2eq), AcONa (2eq) and CCl4, nitrogen replace 3 times after be warming up to 80 DEG C, back flow reaction 12h.Thin-layer chromatography Detection stops reaction and ethyl acetate extraction, saturated sodium bicarbonate washing, ethyl acetate layer anhydrous slufuric acid is added after the reaction was complete Revolving mixes sample after sodium drying, and column chromatography for separation obtains product.
Phenanthridines class compound structure data characterization is as follows:
Bis- methylene oxygroup -6- trichloromethyls phenanthridines (C1) of 2,3,8,9-.Yellow solid;Yield:40%;Fusing point:198.7- 199.6℃。1H NMR (400MHz, CDCl3) δ 8.23 (s, 1H), 7.77 (s, 1H), 7.67 (s, 1H), 7.53 (s, 1H), 6.18 (d, J=8.5Hz, 4H)13C NMR (101MHz, DMSO) δ 151.43,150.27,149.97,149.09,148.77, 147.57,133.32,129.68,128.98,115.89,107.21,104.01,103.18,102.90,101.57, 100.33.HRMS (ESI) calculated value C16H9Cl3NO4 +([M+H]+) 383.9597, experiment value 383.9592.
Bis- methylene oxygroup -6- trichloromethyls phenanthridines (C2) of 2,3-.Faint yellow solid;Yield:39%;Fusing point:175.4- 176.5℃。1H NMR (400MHz, CDCl3) δ 8.92 (d, J=8.4Hz, 1H), 8.49 (d, J=8.2Hz, 1H), 7.91-7.78 (m, 2H), 7.68 (t, J=7.6Hz, 1H), 7.60 (s, 1H), 6.19 (s, 2H)13C NMR (101MHz, DMSO) δ 150.59, 150.37,150.29,137.46,134.81,131.31,127.60,127.04,124.18,121.88,119.36,107.77, 103.08,100.50.HRMS (ESI) calculated value C15H9Cl3NO2 +([M+H]+) 339.9699, experiment value 339.9696.
8- methoxyl group -2,3- methylene oxygroup -6- trichloromethyls phenanthridines (C3).Brown solid;Yield:41%;Fusing point: 93.8-95.0℃。1H NMR (400MHz, CDCl3) δ 8.12-8.05 (m, 8H), 7.80 (s, 1H), 7.67 (t, J=7.5Hz, 4H), 6.17 (s, 2H), 4.01 (s, 3H)13C NMR (101MHz, DMSO) δ 167.67,163.08,162.77,135.60, 134.08,133.34,131.07,130.82,129.93,129.87,129.78,129.70,129.31,129.01,128.45, 124.97.HRMS (ESI) calculated value C16H11Cl3NO3 +([M+H]+) 369.9805, experiment value 369.9804.
10- methoxyl group -2,3- methylene oxygroup -6- trichloromethyls phenanthridines (C4).Yellow solid;Yield:38%;Fusing point: 219.7-222.3℃。1H NMR (400MHz, DMSO) δ 7.95 (d, J=6.3Hz, 1H), 7.81 (t, J=8.3Hz, 1H), 7.59 (d, J=3.6Hz, 2H), 7.31 (t, J=7.8Hz, 1H), 6.32 (s, 2H), 3.69 (s, 3H) .HRMS (ESI) calculated values C16H11Cl3NO3 +([M+H]+) 369.9805, experiment value 369.9804.
2- methoxyl group -6- trichloromethyls phenanthridines (C5).White-yellowish solid;Yield:37%;Fusing point:119-120.9℃.1H NMR (400MHz, CDCl3) δ 8.96 (d, J=8.2Hz, 1H), 8.65 (d, J=8.4Hz, 1H), 8.19 (d, J=9.0Hz, 1H), 7.94-7.83 (m, 2H), 7.80-7.71 (m, 1H), 7.42 (dd, J=9.0,2.7Hz, 1H), 4.05 (s, 3H);13C NMR (101MHz, DMSO) δ 160.62,149.93,135.31,134.27,132.51,131.38,128.05,127.82, 126.70,124.59,120.53,120.27,104.00,98.71,56.46.HRMS (ESI) calculated value C15H11Cl3NO+([M+ H]+) 325.9906, experiment value 325.9901.
3- methoxyl group -8,9- methylene oxygroup -6- trichloromethyls phenanthridines (C6).Brown solid;Yield:32%;Fusing point: 197.5-197.8℃。1H NMR (400MHz, CDCl3) δ 8.36-8.19 (m, 2H), 7.91 (s, 1H), 7.59 (d, J=2.7Hz, 1H), 7.35 (dd, J=9.1,2.7Hz, 1H), 6.20 (s, 2H), 4.00 (s, 3H)13C NMR (101MHz, DMSO) δ 160.32,151.87,141.76,133.80,124.77,120.86,119.65,115.39,109.96,108.77,104.45, 103.88,103.25,101.29,100.64,56.08.HRMS (ESI) calculated value C16H11Cl3NO3 +([M+H]+) 369.9805, Experiment value 369.9798.
3- methoxyl group -6- trichloromethyls phenanthridines (C7).Yellow solid;Yield:26%;Fusing point:175.1-175.3℃.1H NMR (400MHz, CDCl3) δ 8.93 (d, J=8.7Hz, 1H), 8.62 (d, J=8.4Hz, 1H), 8.48 (d, J=9.1Hz, 1H), 7.90-7.81 (m, 1H), 7.72-7.63 (m, 2H), 7.44-7.36 (m, 1H), 4.02 (s, 3H)13C NMR (101MHz, DMSO) 160.81 δ, 152.92,142.01,135.11,131.94,127.91,126.82,124.58,123.65,120.95, 119.09,119.06,110.67,98.60,56.13.HRMS (ESI) calculated value C15H11Cl3NO+([M+H]+) 325.9906, it is real Test value 325.9899.
3,8- dimethoxy -6- trichloromethyls phenanthridines (C8).Yellow solid;Yield:40%;Fusing point:146.7-147.2 ℃.1H NMR (400MHz, CDCl3) δ 8.52 (d, J=9.2Hz, 1H), 8.39 (d, J=9.1Hz, 1H), 8.28 (d, J= 2.6Hz, 1H), 7.63 (d, J=2.7Hz, 1H), 7.50 (dd, J=9.2,2.6Hz, 1H), 7.38 (dd, J=9.1,2.7Hz, 1H), 4.01 (d, J=2.4Hz, 6H)13C NMR (101MHz, DMSO) δ 160.06,157.07,151.84,141.12, 129.60,125.46,124.08,122.20,121.18,120.32,119.35,110.40,108.81,56.07, 55.91.HRMS (ESI) calculated value C16H13Cl3NO2 +([M+H]+) 356.0012, experiment value 356.0009.
3,10- dimethoxy -6- trichloromethyls phenanthridines (C9).Yellow solid;Yield:37%;Fusing point:149.9-150.9 ℃。1H NMR (400MHz, CDCl3) δ 9.46 (d, J=9.5Hz, 1H), 8.60 (d, J=8.5Hz, 1H), 7.72-7.56 (m, 2H), 7.41-7.29 (m, 2H), 4.16 (s, 3H), 4.02 (s, 3H)13C NMR (101MHz, DMSO) δ 159.78,157.90, 152.59,142.64,129.33,127.12,125.28,120.88,120.27,120.03,118.54,113.19,110.92, 56.63,55.97.HRMS (ESI) calculated value C16H13Cl3NO2 +([M+H]+) 356.0012, experiment value 356.0009.
3,8,10- trimethoxy -6- trichloromethyls phenanthridines (C10).Yellow solid;Yield:35%;Fusing point:97-97.3 ℃。1H NMR (400MHz, CDCl3) δ 7.98 (d, J=2.3Hz, 1H), 7.70-7.60 (m, 3H), 7.35 (dd, J=9.5, 2.9Hz, 1H), 4.12 (s, 3H), 4.01 (d, J=2.9Hz, 6H)13C NMR (101MHz, DMSO) δ 162.77,159.25, 159.09,157.44,135.58,130.82,129.78,129.00,128.38,120.61,120.42,110.71,103.67, 101.47,56.84,55.95,55.92.HRMS (ESI) calculated value C17H15Cl3NO3 +([M+H]+) 386.0118, experiment value 386.0112。
2- methoxyl group -6- trichloromethyls phenanthridines (C11).Faint yellow solid;Yield:32%;Fusing point:164.4-165℃.1H NMR (400MHz, CDCl3) δ 8.43-8.36 (m, 1H), 8.30 (s, 1H), 8.27-8.20 (m, 1H), 8.02 (s, 1H), 7.73 (tt, J=7.1,5.3Hz, 2H), 6.24 (d, J=16.4Hz, 2H)13C NMR (101MHz, DMSO) δ 151.82,151.22, 148.15,140.03,133.36,130.68,129.57,125.30,123.39,118.56,116.49,114.73,104.69, 103.41,101.84.HRMS (ESI) calculated value C15H9Cl3NO2 +([M+H]+) 339.9699, experiment value 339.9697.
2,3- dimethoxy -6- trichloromethyls phenanthridines (C12).Yellow solid;Yield:43%;Fusing point:174.5-176.1 ℃。1H NMR (400MHz, CDCl3) δ 8.95 (d, J=8.6Hz, 1H), 8.58 (d, J=8.4Hz, 1H), 8.16-8.08 (m, 4H), 7.86 (s, 2H), 7.74-7.58 (m, 4H), 7.49 (t, J=7.8Hz, 4H), 4.16 (s, 3H), 4.11 (s, 3H)13C NMR (101MHz, DMSO) δ 167.75,151.93,151.86,133.29,131.16,129.69,128.99,127.70, 126.77,124.17,119.98,119.33,110.56,102.99,56.68,56.30.HRMS (ESI) calculated values C16H13Cl3NO2 +([M+H]+) 356.0012, experiment value 356.0010.
2,3,8- trimethoxy -6- trichloromethyls phenanthridines (C13).Yellow solid;Yield:39%;Fusing point:125.5- 126.9℃。1H NMR (400MHz, CDCl3) δ 8.48 (d, J=9.1Hz, 1H), 8.29 (d, J=2.5Hz, 1H), 7.77 (s, 1H), 7.62 (s, 1H), 7.50 (dd, J=9.2,2.6Hz, 1H), 4.14 (s, 3H), 4.09 (s, 3H), 4.02 (s, 3H)13C NMR (101MHz, DMSO) δ 157.06,152.00,151.26,149.05,135.36,129.09,128.95,126.01, 121.63,120.63,120.29,110.36,108.35,102.47,56.64,56.23,55.89.HRMS (ESI) calculated values C17H15Cl3NO3 +([M+H]+) 386.0118, experiment value 386.0115.
8,10- dimethoxy -6- trichloromethyls phenanthridines (C14).Yellow solid;Yield:39%;Fusing point:161.3-162 ℃。1H NMR (400MHz, CDCl3) δ 9.45-9.38 (m, 1H), 8.28-8.21 (m, 1H), 8.01 (d, J=2.3Hz, 1H), 7.71 (dd, J=6.5,3.5Hz, 2H), 7.00 (d, J=2.4Hz, 1H), 4.13 (s, 3H), 4.02 (s, 3H)13C NMR (101MHz, DMSO) δ 160.02,158.37,151.25,139.93,130.95,130.05,128.51,127.15,124.74, 122.76,119.71,103.62,101.98,99.01,56.93,56.04.HRMS (ESI) calculated value C16H13Cl3NO2 +([M+ H]+) 356.0012, experiment value 356.0007.
From the foregoing, it will be observed that phenanthridines class compound structure is correct.
Embodiment 4:Mtt assay measures antitumor activity of compound
Operating procedure is as follows:
Using sanguinarine hydrate, Etoposide as positive control, using PC3 (prostate gland cancer cell), Hela (uterine neck Cancer cell), three kinds of tumour cells of MCF-7 (breast cancer), 5 μm of ol/L and 1 μm of ol/L, two concentration carry out screening active ingredients.
(1) after superclean bench ultraviolet irradiation 30min, ultraviolet lamp is closed, opens headlamp and wind turbine.
(2) old culture medium is abandoned, phosphate buffered saline solution is added and cleans 2-3 times, pancreatin is added, under attached cell is digested Come, add the culture medium containing 10% fetal calf serum and terminate digestion, collects cell, 900rmp/min centrifuges 5min, before abandoning Culture medium is added new culture medium and is resuspended.
(3) cell count adjusts cell to 5000/hole.
(4) cell is reached in 96 orifice plates, per 100 μ l of hole, is then placed in CO2In constant incubator.
(5) compound of 100 μ l various concentrations, 3 multiple holes of each concentration are added after cell is adherent, and 100 μ are added in apertured L culture mediums are as blank control.
(6) after cultivating 48h, 20 μ l MTT are added per hole.
(7) after cultivating 4h, plate is directly thrown, 200 μ l dimethyl sulfoxide (DMSO)s are added per hole and are surveyed using microplate reader fully after dissolving Determine absorbance at 490nm, 630nm, which is used as, refers to wavelength.
Compound absorbance value=compound 490nm absorbance value -630nm absorbance values
Inhibiting rate (%)=(1- compounds absorbance value average value/blank group absorbance value average value) × 100%
The results are shown in table below, and phenanthridines class compound C1, C2, C5, C13 is to tri- kinds of tumour cells of PC3, Hela, MCF-7 Cell proliferation inhibition rate is preferable.
Note:Data result deviation is less than 20%.
Embodiment 5:Phenanthridines IC50Value detection
The present invention filters out active preferable compound and carries out IC50It measures.It sets the concentration gradient of phenanthridines to 20,5,1.25,0.31,0.078 μm of ol/L (4 times of dilutions) are now with the current.Experiment uses PC3, Hela, MCF-7, HepG2 (liver Cancer cell), five kinds of tumour cells of A549 (lung carcinoma cell), operating procedure is as described in Example 4.
As a result shown in following table, this 4 compounds of C1, C2, C5, C13 are to MCF-7, PC3, Hela, A549, HepG2 cell IC50Value is respectively less than sanguinarine, is less than Etoposide.
Note:IC50Unit be μm ol/L.
Embodiment 6:The DNA uncoiling experiment that topoisomerase I mediates
Operating procedure is as follows:
(1) electrophoresis tank is installed, a large amount of buffer solutions (1 × TAE) are prepared.
(2) the accurate agarose dry powder 0.24g that weighs is put into the conical flask for containing 30mL buffer solutions, and boiling water bath is heated to agar Sugar melts, and the Ago-Gel solution for pouring warm enters mold, is configured to 0.8% Ago-Gel.
(3) 10 μ l water, 2 μ l 10 × DNA topoisomerase I buffer solutions, 2 μ l are added into the centrifuge tube of 1.5mL successively 0.1%BSA, topoisomerase I 1U, DNA 0.25 μ g, different 1 μ l of drug, constant volume to 20 μ l.
(4) centrifuge tube is put into 37 DEG C of hatching 30min in water-bath.
(5) it is added in 3.5 μ l 6 × sample-loading buffers to centrifuge tube.
(5) 85V electrophoresis 40-50min, with Genecolour I type TM nucleic acid staining dye 20-40min, gel imaging system Overall view examines electrophoresis result.
Experimental result is as shown in Fig. 4, the results showed that C1 has certain inhibiting effect to topoisomerase I.
Embodiment 7:The DNA uncoiling experiment that type Ⅱ topoisomerase mediates
Operating procedure is as follows:
(1) 10 × type Ⅱ topoisomerase buffer solution A, in 0 DEG C of mixed in equal amounts, is made with 10 × type Ⅱ topoisomerase buffer solution B 5 × cocktail buffer.
(2) Ago-Gel of 1 × TAE buffer solutions configuration 0.8% is used.
(3) it is added 5 μ l water into the centrifuge tube of 1.5mL successively, 2 μ 5 × cocktail buffers of l, type Ⅱ topoisomerase 2U, DNA 0.125 μ g, different 0.5 μ l of drug, constant volume to 10 μ l.
(3) centrifuge tube is put into 37 DEG C of hatching 30min in water-bath.
(4) it is added in 2 μ l 6 × sample-loading buffers to centrifuge tube.
(5) 85V electrophoresis 40-50min, with Genecolour I type TM nucleic acid staining dye 20-40min, gel imaging system Overall view examines electrophoresis result.
Experimental result is as shown in Fig. 5, the results showed that C1, C2, C5, C13 all have type Ⅱ topoisomerase certain suppression It makes and uses.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.

Claims (10)

1. the compound of formula I,
Wherein, R1、R2It is 1 or 2-OCH2O- ,-OCH3, H.
2. the compound of formula I according to claim 1, the compound are selected from:
3. type I compound as claimed in claim 1 or 2, which is characterized in that the compound is C1:Bis- methylene oxygen of 2,3,8,9- Base -6- trichloromethyl phenanthridines.
4. type I compound as claimed in claim 1 or 2, which is characterized in that the compound is C2:Bis- methylene oxygroup -6- of 2,3- Trichloromethyl phenanthridines.
5. type I compound as claimed in claim 1 or 2, which is characterized in that the compound is C5:Three chloromethanes of 2- methoxyl groups -6- Base phenanthridines.
6. type I compound as claimed in claim 1 or 2, which is characterized in that the compound is C13:2,3,8- trimethoxies- 6- trichloromethyl phenanthridines.
7. purposes of the type I compound as claimed in claim 1 or 2 in antitumor drug.
8. the preparation method of the compound of formula I as claimed in claim 1 or 2, which is characterized in that synthetic route is as follows:
Wherein R, R1、R2It is 1 or 2-OCH2O- ,-OCH3, H;
Include the following steps:
(1) it is reacted first with N- bromo-succinimides by aminated compounds and generates a series of bromophenyl aminated compounds;
(2) after, bromophenyl aminated compounds is with phenyl boric acid at 80 DEG C with PdCl2(PPh3)2As catalyst, pass through Suzuki coupling reactions generate 2- diphenyl amine compounds, and 2- diphenyl amines compound is under the action of formic acid by primary amine methyl Change, is then dehydrated under the action of phosphorus oxychloride and triethylamine, ultimately generates a series of 2- isonitrile base biphenyl compounds;
(3) then, under benzoyl peroxide initiation with carbon tetrachloride free radical can occur for 2- isonitrile base biphenyl compound Addition reaction and intramolecular cyclization reaction successfully obtain phenanthridines class compound.
9. the preparation method of the compound of formula I according to any one of claims 8, which is characterized in that the bromophenyl aminated compounds choosing From A1~A5 compounds represented:
10. the preparation method of the compound of formula I according to any one of claims 8, which is characterized in that the different cyanobiphenyls class chemical combination of 2- Object is selected from B1~B20 compounds represented:
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CN111732541A (en) * 2020-07-07 2020-10-02 四川大学 Novel method for efficiently synthesizing 6-alkenyl phenanthridine derivative through ruthenium-catalyzed C-H activation/cyclization reaction
CN115260097A (en) * 2022-08-09 2022-11-01 兰州大学 5-methylphenanthridine compound and application thereof in preparing drug or probe for reducing or detecting thioredoxin reductase level

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111620818A (en) * 2019-02-28 2020-09-04 暨南大学 8, 9-dimethoxyphenanthridine compound and application thereof
CN111620818B (en) * 2019-02-28 2023-09-29 暨南大学 8, 9-dimethoxy-kephaline compound and application thereof
CN111732541A (en) * 2020-07-07 2020-10-02 四川大学 Novel method for efficiently synthesizing 6-alkenyl phenanthridine derivative through ruthenium-catalyzed C-H activation/cyclization reaction
CN111732541B (en) * 2020-07-07 2022-11-01 四川大学 Method for efficiently synthesizing 6-alkenyl phenanthridine derivative through ruthenium-catalyzed C-H activation/cyclization reaction
CN115260097A (en) * 2022-08-09 2022-11-01 兰州大学 5-methylphenanthridine compound and application thereof in preparing drug or probe for reducing or detecting thioredoxin reductase level

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