CN109608501A - A kind of cis-platinum probe system, preparation method and application - Google Patents

A kind of cis-platinum probe system, preparation method and application Download PDF

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CN109608501A
CN109608501A CN201811517596.7A CN201811517596A CN109608501A CN 109608501 A CN109608501 A CN 109608501A CN 201811517596 A CN201811517596 A CN 201811517596A CN 109608501 A CN109608501 A CN 109608501A
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CN109608501B (en
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钟兴巧
刘扬中
沈娟
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University of Science and Technology of China USTC
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    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
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    • C07F15/0093Platinum compounds without a metal-carbon linkage
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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Abstract

The present invention provides a kind of cis-platinum probe systems, have structure shown in formula I.It is that one kind can obtain the metal probe system for analyzing platinum binding protein group by fast enriching from cell, has pushed the research of platinum binding protein group, be further appreciated that the mechanism of action of platinum-containing anticancer drug, made theoretical basis for drug improvement.

Description

A kind of cis-platinum probe system, preparation method and application
Technical field
The present invention relates to biochemical analysis technical field more particularly to a kind of cis-platinum probe system, preparation method and answer With.
Background technique
In anti-cancer therapies, chemotherapy is that one kind common are effect treatment means, and wherein platinum medicine is for particular cancer Disease has good therapeutic effect, such as oophoroma, has obtained extensive research.Then there is disagreement about its mechanism of action, is broadly divided into two Seed type, a kind of viewpoint thinks can to go directly after cisplatin hydrolysis activation nucleus and Irreversible binding occurs for DNA, destroys its space Structure causes unrepairable to damage, and leads to Apoptosis;And another viewpoint then thinks the process and egg of cis-platinum generation effect White matter is related, such as the white CTR1 of copper transport protein.In order to study albumen relevant to cisplatin effect process, platinum binding protein group is Necessary means.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of cis-platinum probe system, preparation method with And application, proteomic assays can be used for by fast enriching albumen from cell.
In order to solve the above technical problems, the present invention provides a kind of cis-platinum probe systems, have structure shown in formula I:
Wherein, M is amido modified magnetic nano-particle, and is connect by imino group with carbonyl.
The present invention is to the type of the magnetic nano-particle and is not particularly limited, preferably magnetic ferric oxide nano particles.
Preferably, the partial size of the nanoparticle is 20~30nm.The partial size of the amido modified magnetic nano-particle Preferably 100~200nm.
R1For the alkylidene of C1~C5, the more preferably alkylidene of C1~C3, in some embodiments of the invention, R1For methylene, ethylidene or propylidene.
R2For singly-bound or the alkylidene of C1~C5, the more preferably alkylidene of singly-bound or C1~C3, of the invention some In specific embodiment, R2For singly-bound, methylene, ethylidene or propylidene.
In some embodiments of the invention, the cis-platinum probe system has structure shown in I-a of formula:
Or structure shown in the formula I can be indicated to flowering structure formula:
Wherein,
Indicate amido modified magnetic nano-particle.
It is above-mentionedOnly schematic diagram, it is amido modified that amino only represents magnetic nano-particle surface, and Do not represent specific amino number, the present invention for amino quantity and be not particularly limited.
The present invention provides the preparation methods of above-mentioned cis-platinum probe system, comprising the following steps:
Cis-Platinum compound shown in modified magnetic nanoparticle shown in formula II and formula III carries out click-reaction, obtains formula I Shown cis-platinum probe system;
Wherein, M, R1、R2Range is same as above, and details are not described herein.
Preferably, modified magnetic nanoparticle shown in the formula II is prepared in accordance with the following methods:
A) coprecipitation prepares magnetic nanoparticle;
B) magnetic nanoparticle is modified using ethyl orthosilicate and 3- aminopropyl triethoxysilane, obtains amino The nanoparticle of modification;
C) amido modified nanoparticle is reacted with C4~C8 acetylenic acid, obtains modified magnetic nanoparticle shown in formula II Son.
Preferably, cis-Platinum compound shown in the formula III is prepared in accordance with the following methods:
A) amino of 1,3-diamino-2-propanol is protected using di-tert-butyl dicarbonate, obtains compound 1;
B) Mesylation is carried out using alcoholic extract hydroxyl group of the mesyl chloride to compound 1, obtains tertbutyloxycarbonyl protection amino 1,3- diamino -2- methylsulphur propyl propionate, is denoted as compound 2;
C) Azide is carried out to compound 2 using sodium azide, obtains 1, the 3- diamino-of tertbutyloxycarbonyl protection amino 2- azido propane, is denoted as compound 3;
D) the nitrine yl amino of compound 3 is handled, obtains 1, the 3- diamino -2- ammonia of tertbutyloxycarbonyl protection amino Base propane is denoted as compound 4;
E) compound 4 and C2~C7 nitrine carboxylic acid are subjected to amidation process, obtain the folded of tertbutyloxycarbonyl protection amino Nitrogen compound is denoted as compound 5;
F) amino protecting group for removing compound 5, obtains compound 6;
G) compound 6 and Pt compound carry out complexation reaction, obtain cis-Platinum compound shown in formula III.
In some embodiments of the invention, work as R1、R2It is ethylidene, i.e., cis-Platinum compound has I-a structure of formula When, preparation method preferably includes following steps:
Modified magnetic nanoparticle shown in II-a of formula carries out click-reaction with cis-Platinum compound shown in III-a of formula, obtains Cis-platinum probe system shown in I-a of formula;
Wherein, it is preferred that modified magnetic nanoparticle shown in the II-a of formula is prepared in accordance with the following methods:
A) coprecipitation prepares magnetic nanoparticle;
B) magnetic nanoparticle is modified using ethyl orthosilicate and 3- aminopropyl triethoxysilane, obtains amino The nanoparticle of modification;
C) amido modified nanoparticle is reacted with pentinoic acid, obtains modified magnetic nanoparticle shown in II-a of formula Son.
Preferably, cis-Platinum compound shown in the III-a of formula is prepared in accordance with the following methods:
A) amino of 1,3-diamino-2-propanol is protected using di-tert-butyl dicarbonate, obtains compound 1;
B) Mesylation is carried out using alcoholic extract hydroxyl group of the mesyl chloride to compound 1, obtains tertbutyloxycarbonyl protection amino 1,3- diamino -2- methylsulphur propyl propionate, is denoted as compound 2;
C) Azide is carried out to compound 2 using sodium azide, obtains 1, the 3- diamino-of tertbutyloxycarbonyl protection amino 2- azido propane, is denoted as compound 3;
D) the nitrine yl amino of compound 3 is handled, obtains 1, the 3- diamino -2- ammonia of tertbutyloxycarbonyl protection amino Base propane is denoted as compound 4;
E) compound 4 and nitrine butyric acid are subjected to amidation process, obtain 1, the 3- diamino of tertbutyloxycarbonyl protection amino Base -2- (4- azido) butyryl propylamine, is denoted as compound 5;
F) amino protecting group for removing compound 5, obtains 1,3- diamino -2- (4- azido) butyryl propylamine, being denoted as Close object 6;
G) compound 6 and Pt compound carry out complexation reaction, obtain cis-Platinum compound shown in III-a of formula.
The cis-platinum probe body prepared the present invention provides above-mentioned cis-platinum probe system or above-mentioned preparation method ties up to egg with enriched Application in white.
Above-mentioned cis-platinum probe system can further apply proteomic assays field.
During being enriched with to albumen, the present invention can be first by cis-Platinum compound and protein shown in above-mentioned formula III Solution mixing, Pt ion and protein binding, are then added modified magnetic nanoparticle shown in formula II, folded with cis-Platinum compound Nitrogen base carries out click-reaction, and then is enriched with to albumen.
The present invention can also first carry out cis-Platinum compound shown in modified magnetic nanoparticle shown in formula II and formula III Click-reaction obtains cis-platinum probe system shown in formula I, then mixes with protein solution, be enriched with to albumen.
Specifically, the present invention provides a kind of methods of protein enrichment, comprising the following steps:
Cis-Platinum compound shown in formula III is reacted with protein solution mixing, and modified magnetic shown in formula II is then added Property nanoparticle, carry out click-reaction with the azido of cis-Platinum compound, and then be enriched with to albumen;
The present invention also provides a kind of methods of protein enrichment, comprising the following steps:
Cis-platinum probe system shown in formula I is reacted with protein solution mixing, is enriched with to albumen;
Wherein, M, R1、R2Range is same as above, and details are not described herein.
In above-mentioned protein solution, albumen can for it is well known to those skilled in the art can with the albumen in conjunction with cis-platinum, Such as cuprein Atox1, the present invention is to this and is not particularly limited.
Compared with prior art, the present invention provides a kind of cis-platinum probe systems, have structure shown in formula I.It is a kind of energy Enough fast enrichings from cell obtain the metal probe system of analysis platinum binding protein group, have pushed grinding for platinum binding protein group Study carefully, be further appreciated that the mechanism of action of platinum-containing anticancer drug, makees theoretical basis for drug improvement.
Detailed description of the invention
Fig. 1 is the hydrogen nuclear magnetic resonance spectrogram for 1, the 3- diamino -2- aminopropane that product IV tertbutyloxycarbonyl protects amino;
Fig. 2 is the infrared absorption pattern of 4- azido butyric acid;
Fig. 3 is the mass spectral analysis map of product VII cis-Platinum compound;
Fig. 4 is the transmission electron microscope picture of superparamag-netic iron oxide;
Fig. 5 is protein-cis-platinum probe-nanoparticle vector compound structural schematic diagram in the present invention.
Specific embodiment
In order to further illustrate the present invention, below with reference to embodiment to cis-platinum probe system provided by the invention, its preparation Method and application are described in detail.
The preparation of 1 cis-Platinum compound of embodiment
A) 1,3-diamino-2-propanol, di-tert-butyl dicarbonate, potassium carbonate are put into reaction according to mass ratio 1:5:4 In solvent, reaction dissolvent is tetrahydrofuran, water volume ratio 1:1, and reaction condition is normal temperature and pressure stirring 12 hours, after reaction Three times using isometric ethyl acetate extraction.This reaction is phase transfer reaction, and obtained product I is to be protected by t-butoxycarbonyl - 2 propyl alcohol of 1,3- diamino.
B) above-mentioned product I is mixed with freshly prepd mesyl chloride according to the mass ratio of the material 1:3 in methylene chloride Suitable triethylamine is then added in (ice-water bath), and then magneton is stirred to react 4 hours.After reaction, by product saturation food Salt water washing 2 times, then with 5% sodium bicarbonate solution wash three times, retain lower layer's organic solvent layer (methylene chloride density compared with Greatly), anhydrous magnesium sulfate is dry, retains filtrate after suction filtration, moves to Rotary Evaporators removal methylene chloride, obtains product II --- 1, the 3- diamino -2- methylsulphur propyl propionate of tertbutyloxycarbonyl protection amino.
C) above-mentioned product II and sodium azide are added to n,N-Dimethylformamide according to the ratio of the amount 1:1.2 of substance (DMF) it in, under the conditions of 80 DEG C, is stirred to react 12 hours.After reaction, it is transferred in cold deionized water and stops reaction, It is extracted in two times with isometric ethyl acetate again, retains upper organic layer.Product is washed twice with saturated salt solution, is used Anhydrous magnesium sulfate is dry, filters to obtain filtrate after dry, removes solvent with Rotary Evaporators, obtains yellow solid.By yellow solid It is recrystallized with hexamethylene, obtains 1, the 3- diamino -2- azido propane of product III tertbutyloxycarbonyl protection amino.
D) above-mentioned product III and triphenyl phosphorus are dissolved in four according to the mass ratio of the material 1:1.2 (staudinger reaction) In hydrogen furans, it is stirred to react under the conditions of 80 DEG C 6 hours.Reaction solution is adjusted to acid (pH is about 4), product is converted into ammonium salt, With ethyl acetate washing reaction liquid, triphenylphosphine and triphen oxygen phosphorus in reaction solution are removed;Reaction solution is adjusted to alkalinity again, and (pH is about For 10), product is fully converted to amino state at this time, extraction 2 times is carried out with isometric ethyl acetate, by extract liquor saturation food Salt water washing 2 times, then be dried with anhydrous magnesium sulfate.Solution after drying is filtered, and is retained filtrate, is used Rotary Evaporators Solvent is removed, the solid of white, i.e. 1, the 3- diamino -2- aminopropane of product IV tertbutyloxycarbonyl protection amino are obtained.
The hydrogen nuclear magnetic resonance spectrogram of 1, the 3- diamino -2- aminopropane of product IV tertbutyloxycarbonyl protection amino is shown in Fig. 1 It is shown.
E) above-mentioned product IV amide is carried out with freshly prepd nitrine butyric acid to react.Weigh the nitrine butyric acid of 1:7 mass ratio 2 are mixed in methylene chloride (DCM) with 1- (3- dimethylamino-propyl) -3- ethyl-carbodiimide hydrochloride (EDCHCl) Hour.Above-mentioned product (the ratio between amount of product and nitrine butyric acid substance about 1:1.2) is added in reaction solution, is stirred under room temperature 12 hours.After reaction, reaction solution is washed twice with water, removes EDC.Lower organic layer is done with anhydrous magnesium sulfate It is dry, filtrate is filtered to obtain after dry, transparent oily liquid is obtained with Rotary Evaporators removal solvent, is obtained in freeze drier white 1,3- diamino -2- (4- azido) butyryl propylamine of color solid, i.e. product V tertbutyloxycarbonyl protection amino.
The infrared absorption pattern of 4- azido butyric acid is as shown in Figure 2.
F) above-mentioned product V removes tertbutyloxycarbonyl protection in dioxanes (dioxane) solution of freshly prepd hydrogen chloride Base.After reaction, dioxane and the tert-butyl alcohol are removed with Rotary Evaporators, the oily liquids of white is obtained, sufficiently after drying Obtain white solid, i.e. product VI 1,3- diamino -2- (4- azido) butyryl propylamine.
G) by above-mentioned product VI and Pt (DMSO)2Cl2It is reacted according to the mass ratio of the material 1:1.Reaction process is first by above-mentioned production Object is dissolved in anhydrous DMF, adds 1,8- diazabicylo, 11 carbon -7- alkene (DBU), is uniformly mixed, is added Pt (DMSO)2Cl2, then reacted 48 hours under dark condition.After reaction, it is added suitable deionized water, cooling and standings, Yellow solid is obtained after 24 hours, is washed drying, is obtained product VII cis-Platinum compound, structure is as shown in formula III:
The mass spectral analysis map of above-mentioned cis-Platinum compound is as shown in Figure 3.
The preparation of 2 superparamag-netic iron oxide of embodiment enrichment carrier
A) coprecipitation prepares superparamag-netic iron oxide
Weigh 2.7029g FeCl3·6H2O and 0.9941g FeCl2·4H2O (the ratio between amount of substance 2:1), then in circle It is dissolved in the flask of bottom with the ethyl alcohol water mixed solution 50mL of 42mL:8mL, yellow mixed solution is warming up to 40 DEG C (constant temperature), used 10mL concentrated ammonia liquor is slowly added dropwise in constant pressure separatory funnel.After ammonium hydroxide completion of dropwise addition, continue to keep reaction 15 minutes, then be warming up to 75 DEG C, heat preservation curing 1 hour.The disperse system finally obtained stands cooling, is washed with water spare.(utilizing magnetic washing)
B) package modification
Superparamag-netic iron oxide prepared by previous step is evenly spread into the molten of 20mL ethanol/water (volume ratio 1:1) In liquid, with sodium hydroxide and vinegar acid for adjusting pH to 10, purged 10 minutes with nitrogen, be discharged in gas.Disperse system is heated up It to 85 DEG C, after temperature is constant, is successively slowly added to 500uL ethyl orthosilicate (TEOS), 200uL 3- aminopropyl-triethoxy silicon Alkane (APTES) keeps high-speed stirred, continues 3 hours of isothermal reaction.After reaction, it is washed with water three times, redisperse to second It is spare in alcohol.
C) alkynyl in the modification-modification of surface
First by pentinoic acid and EDCHCl in DCM according to 2 hours of the ratio between the amount of substance of 1:1.2 hybrid reaction, then It is added above-mentioned by amido modified nano particle into DCM, and continues to be stirred to react 24 hours.After reaction, it utilizes Magnetism separates modified nano particle, and is washed twice with water.
The transmission electron microscope picture of the superparamag-netic iron oxide of preparation is as shown in Figure 4, it can be seen that nano particle is in dispersion State.
3 click-reaction of embodiment prepares cis-platinum probe system
Cis-Platinum compound prepared by embodiment 1 and modified Nano particle prepared by embodiment 2 are subjected to click-reaction, obtained Cis-platinum probe system shown in formula I.
Embodiment 4
Known copper albumin A tox1 is that one kind can be with the albumen in conjunction with cis-platinum.It is expressed, is contained with Escherichia coli The solution of Atox1 albumen, obtaining its concentration with Bradford method measurement is 0.132mg/mL.Cis-platinum prepared by embodiment 1 It closes object to put into protein solution, 37 degree reaction 2 hours lower, adds the alkynyl-modified magnetic nano oxygen of the preparation of embodiment 2 Change iron particle, is added after the completion of monovalence catalysed reaction of copper, nano-carrier is adsorbed on PE tube wall with magnet, then measure egg later White matter solution, discovery protein concentration is too low (0.003mg/mL), belongs to the magnitude in error range.Therefore, protein is main It is enriched in cis-platinum probe body to fasten, the bioaccumulation efficiency of protein is greater than 95%.
It is formed by protein-cis-platinum probe-nanoparticle vector compound structural schematic diagram as shown in Figure 5.
As it can be seen that the cis-platinum probe system protein enrichment rate with higher of the application preparation.
As can be seen from the above embodiments, cis-platinum probe system prepared by the present invention protein enrichment rate with higher.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims (10)

1. a kind of cis-platinum probe system, which is characterized in that have structure shown in formula I:
Wherein, M is amido modified magnetic nano-particle, and is connect by imino group with carbonyl;
R1For the alkylidene of C1~C5;
R2For singly-bound or the alkylidene of C1~C5.
2. cis-platinum probe system according to claim 1, which is characterized in that the cis-platinum probe system has I-a institute of formula Show structure:
3. cis-platinum probe system according to claim 1, which is characterized in that the magnetic nano-particle is magnetic iron oxide Nanoparticle.
4. cis-platinum probe system according to claim 1, which is characterized in that the partial size of the magnetic nano-particle be 20~ 30nm。
5. the preparation method of the described in any item cis-platinum probe systems of Claims 1 to 4, comprising the following steps:
Cis-Platinum compound shown in modified magnetic nanoparticle shown in formula II and formula III carries out click-reaction, obtains shown in formula I Cis-platinum probe system;
Wherein, M is amido modified magnetic nano-particle, and is connect by imino group with carbonyl;
R1For the alkylidene of C1~C5;
R2For singly-bound or the alkylidene of C1~C5.
6. preparation method according to claim 5, which is characterized in that modified magnetic nanoparticle shown in the formula II is pressed It is prepared according to following methods:
A) coprecipitation prepares magnetic nanoparticle;
B) magnetic nanoparticle is modified using ethyl orthosilicate and 3- aminopropyl triethoxysilane, is obtained amido modified Nanoparticle;
C) amido modified nanoparticle is reacted with C4~C8 acetylenic acid, obtains modified magnetic nanoparticle shown in formula II.
7. preparation method according to claim 5, which is characterized in that cis-Platinum compound shown in the formula III is according to following Method preparation:
A) amino of 1,3-diamino-2-propanol is protected using di-tert-butyl dicarbonate, obtains compound 1;
B) Mesylation is carried out using alcoholic extract hydroxyl group of the mesyl chloride to compound 1, obtains the 1,3- of tertbutyloxycarbonyl protection amino Diamino -2- methylsulphur propyl propionate, is denoted as compound 2;
C) Azide is carried out to compound 2 using sodium azide, 1, the 3- diamino -2- for obtaining tertbutyloxycarbonyl protection amino is folded Nitrogen base propane, is denoted as compound 3;
D) the nitrine yl amino of compound 3 is handled, obtains 1, the 3- diamino -2- aminopropan of tertbutyloxycarbonyl protection amino Alkane is denoted as compound 4;
E) compound 4 and C2~C7 nitrine carboxylic acid are subjected to amidation process, obtain the Azide of tertbutyloxycarbonyl protection amino Object is closed, compound 5 is denoted as;
F) amino protecting group for removing compound 5, obtains compound 6;
G) compound 6 and Pt compound carry out complexation reaction, obtain cis-Platinum compound shown in formula III.
8. the described in any item cis-platinum probe systems of Claims 1 to 4 or the described in any item preparation methods of claim 5~7 The cis-platinum probe body of preparation ties up to the application in rich protein.
9. a kind of method of protein enrichment, which comprises the following steps:
Cis-Platinum compound shown in formula III is reacted with protein solution mixing, and modified magnetic shown in formula II is then added and receives Rice corpuscles carries out click-reaction with the azido of cis-Platinum compound, and then is enriched with to albumen;
Wherein, M is amido modified magnetic nano-particle, and is connect by imino group with carbonyl;
R1For the alkylidene of C1~C5;
R2For singly-bound or the alkylidene of C1~C5.
10. a kind of method of protein enrichment, which comprises the following steps:
Cis-platinum probe system shown in formula I is reacted with protein solution mixing, is enriched with to albumen;
Wherein, M is amido modified magnetic nano-particle, and is connect by imino group with carbonyl;
R1For the alkylidene of C1~C5;
R2For singly-bound or the alkylidene of C1~C5.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875611A (en) * 2020-05-21 2020-11-03 湖南师范大学 Fluorescent probe for reduction and activation of anticancer platinum prodrug and preparation method and application thereof
CN112094302A (en) * 2020-11-05 2020-12-18 江苏申基生物科技有限公司 Intracellular cisplatin detection probe and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN101819838A (en) * 2010-03-02 2010-09-01 中国科学院上海应用物理研究所 Alkynyl-modified magnetic nano-particle module, amino acid compound-modified magnetic nano-particles, preparation method and application thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111875611A (en) * 2020-05-21 2020-11-03 湖南师范大学 Fluorescent probe for reduction and activation of anticancer platinum prodrug and preparation method and application thereof
CN112094302A (en) * 2020-11-05 2020-12-18 江苏申基生物科技有限公司 Intracellular cisplatin detection probe and preparation method thereof

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