CN106397516A - Kengreal intermediates as well as preparation methods and application thereof - Google Patents

Kengreal intermediates as well as preparation methods and application thereof Download PDF

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CN106397516A
CN106397516A CN201610780484.5A CN201610780484A CN106397516A CN 106397516 A CN106397516 A CN 106397516A CN 201610780484 A CN201610780484 A CN 201610780484A CN 106397516 A CN106397516 A CN 106397516A
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alkali
cangrelor
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田博
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Beijing Rui Feng Pharmaceutical Technology Co Ltd
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    • C07H19/02Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
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Abstract

The invention discloses Kengreal intermediates as well as preparation methods and an application thereof. The intermediates respectively comprise chemical structures as shown in formula VI and formula VII. The intermediates can be applied to synthesis of a known key intermediate TEPAD of Kengreal, and the method has advantages of high total molar yield, simple operation without special requirements for equipment, safety without pollution, low cost, and the like; the method has extremely high practical value for industrialization of Kengreal, and compared with the prior art, the method has significant progress.

Description

Cangrelor intermediate and its preparation method and application
Technical field
The present invention relates to cangrelor intermediate and its preparation method and application, belong to chemicalses synthesis technical field.
Background technology
Cangrelor is to be developed by AstraZeneca, authorizes reversibility P2Y12 of The Medicines Company exploitation to be subject to Body antagonist, the features such as have rapid-action, half-life short, is a kind of preferable vein antiplatelet drug, prevention heart coronaries are moved In arteries and veins, harmful blood clot is formed, for acute thrombus such as percutaneous coronary intervention (pci) and acute coronary syndromes Potentiality is prevented.On June 22nd, 2015 cangrelor ratifies listing through FDA, and preparation specification is 50mg lyophilized injectable powder, trade name Kengreal.The molecular formula of cangrelor is:C17H21Cl2F3N5Na4O12P3S2, molecular weight is:864.286, No. CAS is: 163706-36-3, chemical structural formula is:
TEPAD, Chinese is:N- [2- (first mercapto) ethyl] -2- [(3,3,3- trifluoro propyl) sulfydryl] -5 '-adenosine, No. CAS is:163706-58-9, molecular formula is:C16H22F3N5O4S2, molecular weight is:469.11, chemical structural formula is:
This compound is the key intermediate of synthesis cangrelor, current cangrelor Preparation is generally all first to synthesize TEPAD using certain process route, is then subsequently synthesized TEPAD, and bank is finally obtained The cangrelor synthetic route of report in Gray Lip river, such as document (J.Med.Chem.1999,42,213-220):
At present with regard to the synthesis report of TEPAD, mainly there is following several synthetic route:
1) development company The Medicines Company disclose TEPAD synthetic route (J.Med.Chem.1999, 42,213-220), the wherein synthesized reference of compound 3 document (Chem.Pharm.Bull.25 (8) 1959-1969 (1977)) Preparation method:
This route with adenosine as raw material, through peroxidating, hydrolysis, cyclization and reduction reaction, obtain compound 3 (adenosine- 2- thioketone), then compound 3, through nucleophilic displacement of fluorine, acetylation, replacement and hydrolysis, obtains TEPAD.Step in this route Rapid 1 and 2, when prepare compound 1 and 2, have substantial amounts of water in reaction system, during post processing removing water has certain operation easier; Step 3 needs to generate in autoclave high temperature reaction under high pressure, and uses hypertoxic solvent carbon disulfide, can produce a large amount of waste liquids with And H2S gas, pollutes environment;And this route needs 7 step reactions altogether, route is longer, and operation is complex, and from step 4 to step Rapid 7, the total recovery of this several step is relatively low, and only 15~20%;Therefore, in general, this route is not suitable for industrialized production.
2) document (fine-chemical intermediate 2013.30 (7), P 835-840) and document (Journal of Medicinal Chemistry;vol.42;2;(1999);P.213-220 disclose the synthetic route of TEPAD in):
This route with guanosine as raw material, through acetylation, chlorination, diazonium, nucleophilic and deprotection reaction, totally 5 steps reaction Prepare TEPAD although process route is shorter, but in the diazo-reaction of step 3, use substantial amounts of thioetherification of crossing and close Thing, it is more difficult that this crosses sulfide compound synthesis, relatively costly, and this process route yield is relatively low, total recovery only 15~20%;Cause This, in general, this route is not suitable for industrialized production.
3) Chinese patent CN105061431 discloses the synthetic route of TEPAD:
This route is with 2- thiobarbituricacidα- as raw material, anti-through nucleophilic, nitrification, replacement, reduction, nucleophilic, cyclization etc. 9 step TEPAD should be prepared, route is longer, and overall yield is relatively low;The raw material 2- thiobarbituricacidα- adopting in this route belongs to pipe Class article processed are it is impossible to large-scale use;Nitration reaction that route is related to, the substitution reaction of ammonia, hydrogenation reduction are dangerous Larger;And multistep reaction is reacted in crude product mode in this route, it is unfavorable for the quality control of final products;Therefore, always For body, this route is also not suitable for industrialized production.
4) Chinese patent CN201510881033 discloses the synthetic route of TEPAD:
This route with compound II as starting material, through ammonification, nucleophilic, reduction, cyclization, nucleophilic and replacement etc. 6 step Reaction prepares TEPAD, although this route is 45% according to its total recovery described in patent, its multistep reaction is oily Compound, is unfavorable for that the quality control of intermediate produces with amplifying;The big production of the non-commercialization of starting material compound II, is not easy to obtain, Relatively costly;And it is related to ammonolysis and be sealing system reaction under high pressure with nitro-reduction reaction, dangerous larger;Therefore, always For body, this route is still not suitable for industrialized production.
Content of the invention
The problems referred to above existing for prior art, it is an object of the invention to provide for the intermediate preparing cangrelor And preparation method thereof and described intermediate cangrelor preparation in application, to meet the industrialized production need of cangrelor Ask.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of cangrelor intermediate, has chemical constitution shown in formula VI:
A kind of method of the cangrelor intermediate shown in formula VI, reacts including following:
A) formula II compound (i.e. guanosine) is left to be reacted with acetylizing agent in alkali and is obtained formula III compound;
B) formula III compound is reacted with chlorination reagent in the presence of acid binding agent, catalyst and obtains formula IV compound;
C) formula IV compound carries out diazo-reaction and obtains formula V compound;
D) formula V compound is left to be reacted with 2- (methyl mercapto) ethamine in alkali and is obtained formula VI compound;
Its concrete reaction scheme is as follows:
Alkali in a reaction is preferably organic base, and described organic base is selected from N-methylmorpholine, triethylamine or diisopropyl second Base amine.
Acetylizing agent in a reaction is preferably acetic anhydride.
Reaction dissolvent in a reaction is preferably dichloromethane, chloroform, acetonitrile, at least one in DMF, THF.
Acetylizing agent in a reaction and the mol ratio of formula II compound are preferably 1:1~5:1.
The reaction temperature of a reaction is preferably 0~30 DEG C, more preferably 20~30 DEG C, and the response time is preferably 1~5 Hour.
Add the acylation catalyst of catalytic amount, the preferred DMAP of described acylation catalyst in a reaction.
Acid binding agent in b reaction is preferably triethylamine, diisopropyl ethyl amine, N, accelerine or N- methyl Quinoline.
Catalyst in b reaction is preferably tetra-alkyl ammonium chloride, for example:Tetramethyl ammonium chloride, tetraethyl ammonia chloride, four fourths Ammonium chloride.
Chlorination reagent in b reaction is preferably phosphorus oxychloride.
At least one in reaction dissolvent in b reaction preferably DMF, acetonitrile, dichloromethane, chloroform, toluene.
Chlorination reagent in b reaction and the mol ratio of formula III compound are preferably 1:1~5:1.
The reaction temperature of b reaction is preferably 55~85 DEG C, more preferably 75~85 DEG C, and the response time is preferably 1~5 Hour.
Mixing of the crude product good solvent obtaining and poor solvent is reacted with chlorination reagent to the formula III compound in b reaction Bonding solvent system can get the sterling of formula IV compound, described good solvent ethyl acetate, dichloromethane, second after purification Nitrile, methanol or ethanol, the preferred normal heptane of described poor solvent, isobutyltrimethylmethane. or petroleum ether.
In c reaction, the reaction system of diazo-reaction is preferably nitrite-hydrochloric acid-Cu-lyt. or nitrites-three Methylchlorosilane, the preferred sodium nitrite of described nitrite, the preferred amyl nitrite of described nitrites or the tertiary fourth of nitrous acid Ester.
The reaction temperature of c reaction is preferably -15~55 DEG C, more preferably 0~5 DEG C, and the response time is preferably 1~5 Hour.
The mixed solvent system that diazo-reaction in c reaction is terminated with the crude product good solvent and poor solvent obtaining is pure The sterling of formula V compound, described good solvent ethyl acetate, dichloromethane, methyl tertiary butyl ether(MTBE) or first is can get after change Benzene, the preferred normal heptane of described poor solvent, isobutyltrimethylmethane. or petroleum ether.
Alkali in d reaction is preferably organic base or inorganic base, the preferred triethylamine of described organic base or diisopropyl ethyl amine, The preferred carbonate of described inorganic base, such as potassium carbonate, sodium carbonate etc..
Reaction dissolvent in d reaction is preferably acetonitrile, DMF, DMSO, toluene, at least one in THF.
2- (methyl mercapto) ethamine in d reaction and the mol ratio of formula V compound are preferably 1:1~2:1.
D reaction reaction temperature be preferably 60~100 DEG C, more preferably 70~80 DEG C, the response time be preferably 1~ 5 hours.
Another kind of cangrelor intermediate, has chemical constitution shown in formula VII:
A kind of method of the cangrelor intermediate shown in formula VII, alkaline hydrolysis obtains formula VI compound in the basic conditions Formula VII compound, reaction equation is as follows:
Alkalescence condition in reaction is preferably formed by inorganic base, and described inorganic base can be selected for sodium hydroxide or potassium hydroxide.
Alkaline hydrolysis solvent for use in reaction is preferably methanol, at least one in oxolane.
Reaction temperature is preferably 20~30 DEG C.
A kind of application of the cangrelor intermediate shown in formula VII, is to leave and 3,3,3- trifluoros formula VII compound in alkali Propyl group thiol reactant, the known formula I intermediate of prepared cangrelor, reaction equation is as follows:
Alkali in reaction be preferably organic base or inorganic base, described organic base be preferably Feldalat NM, Feldalat KM, Sodium ethylate, Potassium ethoxide, sodium tert-butoxide or potassium tert-butoxide, further preferred Feldalat NM or sodium tert-butoxide, the preferred sodium hydroxide of described inorganic base, Potassium hydroxide or sodium hydrogen, further preferred sodium hydroxide or sodium hydrogen.
At least one in reaction dissolvent in reaction preferably DMF, DMSO, toluene, NMP.
In reaction, 3,3,3- trifluoro propyl mercaptan and the mol ratio of formula VII compound are preferably 1:1~2:1.
The reaction temperature of reaction is preferably 60~100 DEG C, more preferably 70~80 DEG C, and the response time is preferably 1~5 Hour.
The known formula I intermediate (i.e. TEPAD) of prepared cangrelor, can be used for follow-up bank lattice according to prior art The preparation of Lei Luo.
Compared with prior art, the present invention has following significance beneficial effect:
1) apply intermediate formula VI provided by the present invention, formula VII compound, the known key of synthesis cangrelor can be made The preparation process is simple of intermediate TEPAD (i.e. type I compound), cost reduces, and quality is easily controlled, and high income is (from formula II , to type I compound, the total moles yield of whole synthetic route is more than 35% for compound), be conducive to the preparation of cangrelor;
2) the intermediate formula VI that provided, the preparation of formula VII compound, simple to operate, intermediate product is easy to purification, quality Controllability is strong, and products obtained therefrom purity is high, and agents useful for same is cheap and easy to get, simultaneously not using poisonous or hazardous agents, safety non-pollution, Also not using the reagent that severe corrosive reagent etc. is higher to equipment requirements, the reaction of whole route simultaneously is all entered under normal conditions OK, without High Temperature High Pressure operation (reaction temperature is integrally less than 100 DEG C), there is no any particular/special requirement, production cost to equipment Low.
In a word, the present invention utilizes raw material (formula II compound, i.e. guanosine) cheap and easy to get, synthesizes cangrelor intermediate formula VIth, formula VII and type I compound (TEPAD), have total moles high income, simple to operate, safety non-pollution, no special to equipment will Ask, low production cost the advantages of, to the industrialization realizing cangrelor, there is extremely strong practical value, with respect to prior art tool There is significance progress.
Specific embodiment
With reference to embodiment and comparative example, technical solution of the present invention is described in further detail and completely.
Embodiment 1:
The preparation of compound III (2', 3', 5'- triacetyl guanosine):
Acetic anhydride (150g, 1.45mol) is dropped to containing compound ii (i.e. guanosine, 100g, 0.35mol), N- methyl In morpholine (180g, 1.8mol), acetonitrile (800mL) solution of DMAP (4.3g, 0.035mol), after completion of dropping, reactant liquor exists React 2 hours at 20~30 DEG C, terminate reaction, reactant liquor is evaporated to no solution and distillates, in residual solution, add ethanol (200mL) recrystallization, sucking filtration are carried out, filter cake is dried in 45~55 DEG C, obtains final product compound III (2', 3', 5'- triacetyl guanosine): 125g, molar yield is 86.8%.
After tested:ESI-MS:[M+H]+=410.1.
Embodiment 2:
The system of compounds Ⅳ (9- [2,3,5- tri--o- acetyl group-beta-d- ribofuranose] -2- amido-6-chloropurine) Standby:
Phosphorus oxychloride (180g, 1.12mol) is dropped to containing compound III (100g, 0.234mol), tetraethyl chlorination In ammonium (80g, 0.48mol), toluene (800mL) solution of triethylamine (24g, 0.244mol), after completion of dropping, reactant liquor heats up React two hours to 75~85 DEG C of insulated and stirred, terminate reaction, add water and reaction is quenched, be subsequently adding ethyl acetate (800mL) extraction Take, twice, then washed with 10wt% sodium bicarbonate aqueous solution to system is in alkalescence to the organic phases washed with water isolated, chlorination Sodium water solution is washed once, and uses anhydrous sodium sulfate drying, sucking filtration, is evaporated to no solution and distillates, and adds dichloro in residual solution Methane (100mL) and normal heptane (400mL) carry out recrystallization, sucking filtration, obtain khaki solid matter, that is, compounds Ⅳ (9- [2,3, 5- tri--o- acetyl group-beta-d- ribofuranose] -2- amido-6-chloropurine):87g, molar yield is 82%.
After tested:ESI-MS:[M+H]+=428.2.
Embodiment 3:
The preparation of compound V (the chloro- 9- of 2,6- bis- (2', 3', 5'- tri--O- acetyl group-β-D-RIBOSE base) purine):
Amyl nitrite (165g, 1.41mol) is dissolved in dichloromethane (500mL) solution, then in 0~5 DEG C of bar Under part, add trim,ethylchlorosilane (76g, 0.70mol), be subsequently added into the DCM of compounds Ⅳ (100g, 0.234mol) (500mL) solution drops in above-mentioned mother solution, after charging finishes, continues at stirring reaction 1 hour under this temperature conditions, terminates anti- Should, add the sodium sulfite solution of saturation, point liquid, the organic faciess isolated use sodium bicarbonate aqueous solution, saturated aqueous common salt successively Washing, and use anhydrous sodium sulfate drying, sucking filtration, it is evaporated to no solution and distillates, in residual solution, add dichloromethane (100mL) Carry out recrystallization, sucking filtration with normal heptane (350mL), obtain yellow solid matter, that is, compound V (2,6- bis- chloro- 9- (2', 3', 5'- tri--O- acetyl group-β-D-RIBOSE base) purine):86g, molar yield is 82%.
After tested:ESI-MS:[M+H]+=447.0.
Embodiment 4:
The preparation of compound 2- (methyl mercapto) ethamine:
Mercaptamine (113g, 1.0mol) is dissolved in ethanol (1.5L) solution, then under the conditions of -10~0 DEG C, Add sodium hydroxide (120g, 3.0mol), then Deca iodomethane (170g, 1.2mol), after completion of dropping, continue at this temperature Under the conditions of stirring reaction 3 hours, terminate reaction, low temperature backspin is evaporated off partial solvent, filter, filtrate is reduced pressure under -0.09MPa Distillation -0.09MPa, collects 110~120 DEG C of fraction, obtains colourless oily mater, i.e. compound 2- (methyl mercapto) ethamine: 81g, molar yield is 89%.
Embodiment 5:
The preparation of cangrelor midbody compound VI:
Compound V (80g, 0.18mol) is dissolved in acetonitrile (500mL) solution, is subsequently adding the change of embodiment 4 preparation Compound 2- (methyl mercapto) ethamine (32.5g, 0.36mol) and triethylamine (45.3g, 0.45mol), after charging finishes, reactant liquor liter Temperature is reacted 3 hours to 70~80 DEG C of insulated and stirred, terminates reaction, and reactant liquor is evaporated to no solution and distillates, and adds in residual solution Enter ethyl acetate (300mL) and water (200mL), point liquid, the organic faciess isolated are washed with sodium-chloride water solution, anhydrous sodium sulfate It is dried, sucking filtration, be evaporated to no solution and distillate, obtain tan solid matter, be i.e. cangrelor intermediate of the present invention Compound VI:75g, molar yield is 83%, HPLC purity is 99.5%, by compound ii to cangrelor midbody compound VI Four step total moles yields be 52.5%.
After tested:1HNMR(300MHz,CDCl3) δ 2.07 (s, 3H), 2.10~2.22 (m, 9H), 2.80 (t, J= 6.5Hz, 2H), 3.84 (s, 2H), 4.41 (dq, J=6.3,4.1,2.9Hz, 3H), 5.59 (dd, J=5.6,3.8Hz, 1H), 5.77 (t, J=5.5Hz, 1H), 6.16 (d, J=5.6Hz, 1H), 6.47 (s, 1H), 7.90 (s, 1H);
ESI-MS:[M+H]+=502.05, [M+Na]+=524.00.
Embodiment 6:
The preparation of compound 3,3,3- trifluoro propanethiol:
Trifluoro iodopropane (110g, 0.49mol) is added (30mL second in the ethanol water of thiourea (38g, 0.52mol) Alcohol+1.5mL water), after charging finishes, reactant liquor is warming up to 90 DEG C of insulated and stirred and reacts 5 hours, terminates reaction, and reactant liquor is lowered the temperature To 0~5 DEG C, stirring, reactant liquor solidifies, sucking filtration, and filter cake obtains white solid 90g in 45 DEG C of drying;
White solid is dissolved in water (150mL), add 20wt% sodium hydrate aqueous solution, adjust solution pH be 12~ 13, reactant liquor back flow reaction 3 hours, terminates reaction, reactant liquor is cooled to room temperature, adjusting pH to solution is in acidity, distillation is collected 55~58 DEG C of fraction, obtains final product compound 3,3,3- trifluoro propanethiol:44g, two step total moles yields are 65%.
Embodiment 7:
The preparation of cangrelor midbody compound VII:
Compound VI (15g, 0.03mol) is dissolved in methanol (50mL) solution, then under the conditions of 20~30 DEG C, adds Water (100mL) solution of sodium hydroxide (4g, 0.1mol), after charging finishes, continues at stirring reaction 1 under this temperature conditions little When, terminate reaction, add ethyl acetate (250mL) extraction, be spin-dried for after the organic faciess anhydrous sodium sulfate drying isolated, obtain final product Compound VII, without purification, is directly used in next step reaction.
After tested:1HNMR(400MHz,DMSO-d6):2.09 (s, 3H), 2.48~2.69 (m, 2H), 3.43~3.70 (m, 4H), 3.93 (q, J=3.8Hz, 1H), 4.02 (dd, J=13.1,6.9Hz, 1H), 4.12 (t, J=4.0Hz, 1H), 4.50 (t, J=5.5Hz, 1H), 5.01~5.09 (m, 1H), 5.19 (s, 1H), 5.47 (s, 1H), 5.81 (d, J=5.9Hz, 1H), 8.40 (s,1H);
ESI-MS:[M+H]+=375.95, [M+Na]+=398.00.
Embodiment 8:
The known key intermediate TEPAD of cangrelor is the preparation of compounds I:
Sodium hydrogen (4.2g, 0.105mol) is added in DMF (30mL) solution, then under the conditions of 0~5 DEG C, adds and implement Compound 3,3, the 3- trifluoro propanethiol (8g, 0.06mol) of example 6 preparation, keeping temperature stirring reaction half an hour, adds embodiment DMF (20mL) solution of 7 gained compounds VII, after charging finishes, it is little that reactant liquor is warming up to 70~80 DEG C of insulated and stirred reactions 2.5 When, terminate reaction, reactant liquor is cooled to room temperature, add water (100mL), have yellow solid to separate out, sucking filtration, filter cake ethanol (40mL) carry out recrystallization, sucking filtration with the mixed solution of water (30mL), obtain final product the known key intermediate TEPAD of cangrelor, I.e. compounds I:9g, HPLC purity is 99.9%, by six steps of the known key intermediate TEPAD of compound ii to cangrelor Total moles yield is 36.7%.
After tested:
TEPAD:1HNMRδ(500MHz,CD3OD):8.27 (1H, s), 5.91 (1H, d, J=5.0Hz), 4.71~4.68 (1H, t, J=10.0Hz), 4.31~4.29 (1H, m), 4.13~4.11 (1H, m), 3.88~3.71 (4H, m), 3.31 (2H, m), 2.79~2.61 (4H, m), 2.14 (3H, s);
ESI-MS:[M+H]+=470.05.
In sum, the present invention passes through the preparation of midbody compound VI, VII thus synthesizing TEPAD, with document (Journal of Medicinal Chemistry;vol.42;2;(1999);P.213-220) compare, initial using identical TEPAD prepared by raw material (guanosine), and total moles yield is 36.7% hence it is evident that being higher than document (Journal of Medicinal Chemistry;vol.42;2;(1999);P.213-220 15~20% in), and the present invention by compound ii to compound VIth, VII again in the preparation process of TEPAD, and the intermediate product of preparation can get high-purity through simple solvent recrystallization and produces Product, purification is simple, quality controllable, it is to avoid brings unnecessary impurity in subsequent operation, is compound VI, VII and TEPAD High-purity lays a solid foundation;And, whole route is simple to operate, to equipment no particular/special requirement, safety and environmental protection, produces into This low, suitable large-scale production.
Finally need it is pointed out here that be:The part preferred embodiment that the above is only the present invention is it is impossible to be interpreted as to this The restriction of bright protection domain, those skilled in the art made according to the above of the present invention some nonessential improve and Adjustment belongs to protection scope of the present invention.

Claims (10)

1. a kind of cangrelor intermediate is it is characterised in that have chemical constitution shown in formula VI:
2. a kind of method of the cangrelor intermediate prepared described in claim 1 is it is characterised in that include following reaction:
A) formula II compound is left to be reacted with acetylizing agent in alkali and is obtained formula III compound;
B) formula III compound is reacted with chlorination reagent in the presence of acid binding agent, catalyst and obtains formula IV compound;
C) formula IV compound carries out diazo-reaction and obtains formula V compound;
D) formula V compound is left to be reacted with 2- (methyl mercapto) ethamine in alkali and is obtained formula VI compound;
Its concrete reaction scheme is as follows:
3. method according to claim 2 it is characterised in that:Alkali in a reaction selects organic base, and described organic base is selected N-methylmorpholine, triethylamine or diisopropyl ethyl amine;Acetic anhydride selected by acetylizing agent in a reaction.
4. method according to claim 2 it is characterised in that:Acid binding agent in b reaction selects triethylamine, diisopropyl second Base amine, N, accelerine or N-methylmorpholine;Tetra-alkyl ammonium chloride selected by catalyst in b reaction;Chlorination in b reaction Phosphorus oxychloride selected by reagent.
5. method according to claim 2 it is characterised in that:The reaction system of the diazo-reaction in c reaction is nitrous Hydrochlorate-hydrochloric acid-Cu-lyt. or nitrites-trim,ethylchlorosilane.
6. method according to claim 2 it is characterised in that:Alkali in d reaction selects organic base or inorganic base, and described have Machine alkali selects triethylamine or diisopropyl ethyl amine, and carbonate selected by described inorganic base.
7. a kind of cangrelor intermediate is it is characterised in that have chemical constitution shown in formula VII:
8. a kind of method of the cangrelor intermediate prepared described in claim 7 it is characterised in that:By formula VI compound in alkali Under the conditions of property, alkaline hydrolysis obtains formula VII compound, and reaction equation is as follows:
9. the cangrelor intermediate described in a kind of claim 7 application it is characterised in that:Formula VII compound is left in alkali With 3,3,3- trifluoro propyl thiol reactants, the known formula I intermediate of prepared cangrelor, reaction equation is as follows:
10. according to claim 9 application it is characterised in that:Alkali in reaction selects organic base or inorganic base, and described have Machine alkali selects Feldalat NM, Feldalat KM, Sodium ethylate, potassium ethoxide, sodium tert-butoxide or potassium tert-butoxide, and hydroxide selected by described inorganic base Sodium, potassium hydroxide or sodium hydrogen.
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN109467523A (en) * 2018-12-17 2019-03-15 苏州华道生物药业股份有限公司 A kind of green synthesis method of the third sulfonic acid chloride of 3- chlorine
CN109781920A (en) * 2017-11-15 2019-05-21 石药集团中奇制药技术(石家庄)有限公司 A kind of HPLC detection method of the cangrelor in relation to substance
CN109912673A (en) * 2017-12-12 2019-06-21 亚宝药业集团股份有限公司 Cangrelor intermediate and preparation method thereof

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