CN106966911B - The preparation method of Toremifene Citrate intermediate - Google Patents

The preparation method of Toremifene Citrate intermediate Download PDF

Info

Publication number
CN106966911B
CN106966911B CN201710248184.7A CN201710248184A CN106966911B CN 106966911 B CN106966911 B CN 106966911B CN 201710248184 A CN201710248184 A CN 201710248184A CN 106966911 B CN106966911 B CN 106966911B
Authority
CN
China
Prior art keywords
ethyoxyl
tetrahydrofuran
dimethylamino
added dropwise
benzophenone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710248184.7A
Other languages
Chinese (zh)
Other versions
CN106966911A (en
Inventor
徐骥
王毅斌
王陈杨
赵爱霞
汪伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuan Pharmaceutical Group Ningbo Team Pharmaceutical Co ltd
Original Assignee
Fu'an Pharmaceutical Group Ningbo Tianheng Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fu'an Pharmaceutical Group Ningbo Tianheng Pharmaceutical Co Ltd filed Critical Fu'an Pharmaceutical Group Ningbo Tianheng Pharmaceutical Co Ltd
Publication of CN106966911A publication Critical patent/CN106966911A/en
Application granted granted Critical
Publication of CN106966911B publication Critical patent/CN106966911B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • C07C213/06Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton from hydroxy amines by reactions involving the etherification or esterification of hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • C07C213/08Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone and 1, the preparation method of 2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol;Wherein 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone the preparation method comprises the following steps: by 4- dihydroxy benaophenonel, inorganic base, the first solvent and the second solvent mix, it is stirred 0.8~2 hour at 53~58 DEG C, it is subsequently cooled to 40 DEG C or less, N is added, N- dimethylamino chloroethanes hydrochloride is warming up to 80~85 DEG C and is stirred to react 2~5 hours;Be cooled to 40 DEG C hereinafter, plus drinking water, stirring be allowed to be layered, take upper oil phase;Oily mutually first washed with 4% sodium hydroxide solution to TLC detection 4- dihydroxy benaophenonel disappears, then with drink water washing to pH be 8~9;Obtained product depressurizes at 55~60 DEG C and steams solvent, obtains Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone after cooling.

Description

The preparation method of Toremifene Citrate intermediate
Technical field
The present invention relates to field of medicine and chemical technology, a kind of especially Toremifene Citrate intermediate 4- [2- (N, N- diformazan ammonia Base) ethyoxyl] benzophenone and 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol Preparation method.
Background technique
Toremifene (Toremifene) is that the estrogen receptor antagon class that Famos company, Finland develops in nineteen eighty-three is anti- Tumour medicine, for treating postmenopausal women's estrogen receptor positive or unknown metastatic breast cancer, 1996 by Orion Company lists in European Union, trade name Fareston.Toremifene is administered orally in the form of citric acid.Toremifene and tamoxifen Fragrant structure is alike, the mechanism of action is similar, belongs to the antiestrogen of triaryl butylene class.In recent years the study found that citron Sour Toremifene is the active drug for inhibiting Ebola virus.
4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone (4- (2- (dimethylamino) ethoxy) phenyl) (phenyl) methanone) and 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4- butanediol (1- (4- (2- (dimethylamino) ethoxy) phenyl) -1,2-diphenylbutane-1,4-diol) is citric acid support Two important intermediates in Rui meter Fen preparation process.The synthesis of Toremifene Citrate is original with 4- dihydroxy benaophenonel Material, with N, N- dimethylamino chloroethanes hydrochloride occurs O- alkylated reaction and generates 4- [2- (N, N- dimethylamino) ethyoxyl] two Benzophenone, under the action of Lithium Aluminium Hydride, 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone is obtained with cortex cinnamomi aldehyde reaction 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol, chemical equation are as follows:
According to document (Xu Xiaoguang, the synthesis of Toremifene Citrate, Chinese Journal of Pharmaceuticals, 2002,33 (9), 417- 418 and slow general et al., the optimization of synthesis of Toremifene Citrate, contemporary Chinese medicinal application, 2013,7 (12), 236- 237) report, 4- [2- (N, N- dimethylamino) ethyoxyl] synthesis of benzophenone are auxiliary with water using acetone as solvent Solvent, some have also used phase transfer catalyst tetrabutylammonium chloride.It, can be fixed even if reacting with the synthesis technology of acetone as solvent Amount is completed, but the self-condensation of unavoidable acetone under alkaline condition, condensation product and 4- [2- (N, N- dimethylamino) ethoxy Base] benzophenone separation difficulty will lead to 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone purity decline.1,2- General use is post-processed in diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol preparation process Water or aqueous ammonium chloride solution destroy unreacted Lithium Aluminium Hydride, then the routine operations such as layering.Due to ether solvent water solubility compared with Greatly, causing a large amount of solvents and portioned product to bring water phase into causes yield to reduce, and also causes water pollution, the drawbacks such as cumbersome.
" Heilungkiang medical science " ((Zhang Ruiren etc., 2012,35 (4), 29-30)) report " Toremifene Citrate Intermediate improvement in synthesis " method, propose using cinnamyl alcohol directly with 4- [2- (N, N- dimethylamino) ethyoxyl] hexichol first Ketone reacts in tetrahydrofuran, prepares 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethoxy with medium yield Base] phenyl] -1,4-butanediol method.It theoretically derives, since this method reacts front and back valent state non-conservation, the party Method cannot prepare Toremifene Citrate intermediate;And it is verified through actual tests, this method cannot equally prepare citron Sour Toremifene intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol.
Summary of the invention
There is provided the technical problem to be solved by the present invention is to the status for the prior art a kind of can effectively inhibit to prepare Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] hexichol first of side reaction generation and high income in journey The preparation method of ketone.
Another technical problem to be solved by this invention is to provide a kind of easy to operate and ring for the status of the prior art The Toremifene Citrate intermediate 1 of guarantor, 2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae-fourth The preparation method of glycol.
The technical scheme of the invention to solve the technical problem is: Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone preparation method, it is characterised in that include the following steps:
4- dihydroxy benaophenonel, inorganic base, the first solvent and the second solvent are mixed, 0.8~2 is stirred at 53~58 DEG C Hour, 40 DEG C are subsequently cooled to hereinafter, N is added, and N- dimethylamino chloroethanes hydrochloride is warming up to 80~85 DEG C and is stirred to react 2 ~5 hours;
40 DEG C are cooled to hereinafter, plus drinking water, the dosage of the drinking water are 5~8 times of 4- dihydroxy benaophenonel weight; Stirring is allowed to be layered, and takes upper oil phase;
It is oily mutually first to be washed with 4% sodium hydroxide solution to TLC detection 4- dihydroxy benaophenonel disappearance, then with drinking water washing It is 8~9 to pH;Obtained product depressurizes at 55~60 DEG C and steams solvent, obtains among Toremifene Citrate after cooling Body 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone;
The 4- dihydroxy benaophenonel and the N, the molar ratio of N- dimethylamino chloroethanes hydrochloride are 1:1.1~2.0;
The solvent is the mixture of the first solvent, the second solvent and inorganic base;The dosage of first solvent is 4- hydroxyl 5~20 times of weight of base benzophenone, the dosage of second solvent are 0.1~50wt% of first solvent usage;Institute The dosage for stating inorganic base is 1~5 times of mole of 4- dihydroxy benaophenonel;
First solvent is selected from any one in benzene, toluene, methylene chloride, 1,2- dichloroethanes, dimethylbenzene and chlorobenzene Kind;Second solvent is selected from methanol, ethyl alcohol, 95% ethyl alcohol, acetone, butanone, n,N-Dimethylformamide, acetonitrile, dimethyl At least one of sulfoxide and their aqueous solution and water.
It is preferred that the inorganic base is sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide.
Toremifene Citrate intermediate 4- [2- (N, the N- dimethylamino) ethyoxyl] hexichol prepared using the above method Ketone prepares Toremifene Citrate intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1, The preparation method of 4- butanediol, it is characterised in that including lower book step:
Tetrahydrofuran and Lithium Aluminium Hydride are mixed by the weight ratio of 10~30:1,20~28 DEG C of dropwises addition concentration for 10~ The cinnamyl alcohol of 30wt% or the tetrahydrofuran solution of cinnamic acid, after being added dropwise, continuing stirring to reaction solution at 20~28 DEG C is in White opacity liquid;
Then the Toremifene Citrate that concentration is 10~35wt% is added dropwise into reaction system at 20~28 DEG C The tetrahydrofuran solution of intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, after being added dropwise, in 38~43 DEG C Continue stirring to reaction solution dissolved clarification;
Then the Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethoxy is added into reaction system Base] 10~20 times of benzophenone quality of tetrahydrofuran, 2.3~2.6 times of Lithium Aluminium Hydride quality dense is added dropwise after charging again The lye that degree is 20% continues stirring 15 minutes;Desiccant is put into again, and the dosage of the desiccant is the citric acid Tuo Rui meter 2.0~2.5 times of fragrant intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone quality;Add Lithium Aluminium Hydride quality 2.3~2.6 times of drinking water;
Then the Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethoxy is added into reaction system Base] 3~4 times of benzophenone quality of toluene, it is heated to 90~100 DEG C of solution clarifications;Then reaction system is cooled to room temperature;
Positive press filtration or negative pressure filtration are carried out to reaction system, take solid, decompression drying obtains Toremifene Citrate Intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol.
It is preferred that the lye is sodium hydroxide solution, potassium hydroxide solution, solution of potassium carbonate or sodium carbonate liquor.
The desiccant is selected from anhydrous sodium sulfate, anhydrous magnesium sulfate, anhydrous calcium chloride or quick lime.
A kind of compared with prior art, provided by the present invention completely new Toremifene Citrate intermediate 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone preparation method, using the first water-insoluble solvent as reaction dissolvent, reaction temperature Spend moderate, the reaction time is short, saves manufacturing man-hours;And it post-processes and directly carries out in a kettle, reaction dissolvent can return Receipts are applied, and eliminate centrifugation and the processes such as acetone are evaporated off, and operation simplifies, and solid waste is reduced, and cost reduces, and also ensure operator Working environment;The trouble for using and being concentrated that a large amount of acetone are omitted in the prior art is avoided simultaneously, reduces the life of impurity At, avoid acetone under alkaline condition self-condensation reaction, improve 4- [2- (N, N- dimethylamino) ethyoxyl] hexichol The purity and yield of ketone, yield can reach 92~98%.
Intermediate 1, the preparation of 2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol Method, using cinnamyl alcohol as raw material, using ethers reagent as solvent, Lithium Aluminium Hydride is reducing agent, first prepares organic gold of cinnamyl alcohol Metal complex is then added 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone and obtains containing 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol reaction solution;Chemical equation is as follows:
Post-processing is destroyed using lye, and desiccant, then the water for the amount of reordering is added, is filtered to remove inorganic salts, is concentrated under reduced pressure, behaviour Make simplified, quick, waste reduction, 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol Yield can reach 89~95%, while it is environmental-friendly, avoid the generation of waste water.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment 1
Equipped in churned mechanically 10L there-necked flask, 4- dihydroxy benaophenonel 400g, potassium carbonate 696g, toluene is added 5.4kg, 95% industrial alcohol 140g, 53~58 DEG C are stirred 1 hour.
40 DEG C are cooled to hereinafter, investment N, N- dimethylamino chloroethanes hydrochloride 436g, it is small to be warming up to 80~85 DEG C of reactions 4 When.
Be cooled to 40 DEG C hereinafter, plus drinking water 2.4kg, stir, layering, abandon lower layer's water phase.
Oily mutually to be washed in three times with 4.6 liter of 4% sodium hydroxide solution, TLC detects 4- dihydroxy benaophenonel and disappears;Again with 2 It rises drinking water to wash in two times, washing to pH is 8.
Obtained product depressurizes at 55~60 DEG C and steams solvent, give light yellow oil 521g, obtains after cooling light yellow Solid, i.e. 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone;Weighing calculates 4- [2- (N, N- dimethylamino) ethyoxyl] Benzophenone yield 95.8%.
The calculation method of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone yield is as follows:
Wherein, m1 is the output quality of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, and m0 is 4- hydroxyl hexichol The quality that feeds intake of ketone, 198.22 be the relative molecular mass of 4- dihydroxy benaophenonel, and 269.34 be 4- [2- (N, N- diformazan ammonia Base) ethyoxyl] benzophenone relative molecular mass.
Embodiment 2
1.2kg tetrahydrofuran is thrown into 5L there-necked flask, 20~28 DEG C of temperature control, cinnamic acid is slowly added dropwise in 54g Lithium Aluminium Hydride Tetrahydrofuran solution (318g containing cinnamic acid, tetrahydrofuran 960g), is added dropwise, and stirs 45 minutes at 20~28 DEG C.Then The tetrahydrofuran solution of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone prepared by embodiment 1 is added at such a temperature (containing 465g4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, 1.2kg tetrahydrofuran).It finishes, stirs 1 in 38~43 DEG C Hour.
Reaction solution is transferred in 20 liters of glass reaction kettles, tetrahydrofuran 7L is added, it is molten that 20% sodium hydroxide is slowly added dropwise Liquid 132g is stirred 10 minutes, is added 960g anhydrous sodium sulfate, then drinking water 132g is added dropwise, be added dropwise, and stirs half an hour, is filtered. Filter cake is washed with 1L tetrahydrofuran.It removes tetrahydrofuran under reduced pressure, adds 2.64kg toluene, be heated to 90~100 DEG C of dissolved clarifications, it is then cold But it to room temperature, filters, filter cake is eluted again with 2.4kg toluene, is heated to 90~100 DEG C of dissolved clarifications, takes out after then cooling to room temperature Off-white powder 650g, i.e. 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethoxy are dried to obtain in filter, 60 DEG C of normal pressure air blast Base] phenyl] -1,4-butanediol;Weighing calculates 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1, 4- butanediol yield is 92.8%, HPLC content 98.7%.
The yield calculating side of 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol Method are as follows:
Wherein, m1 is the quality that feeds intake of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, m2 1,2- diphenyl- The output quality of 1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol, 269.34 be 4- [2- (N, N- bis- Methylamino) ethyoxyl] benzophenone relative molecular mass, 405.53 be 1,2- diphenyl -1- [4- [2- (N, N- diformazan ammonia Base) ethyoxyl] phenyl] and -1,4-butanediol relative molecular mass
HPLC content assaying method is as follows:
Chromatographic condition and system suitability: being filler (250 × 4.6mm) with melissyl silane group silica gel, 40 DEG C of column temperature, Detection wavelength 240nm, using methanol: water: trifluoroacetic acid carries out gradient elution as mobile phase.Initial liquid phase is A:B =(50:50) is then increased the ratio of B with per minute 1.33% speed, after 30 minutes, B ratio is made to rise to 90%, A ratio It is down to 10%.Keep this ratio 15 minutes.It takes this product appropriate, adds methanol dissolution that the solution in every 1ml containing about 1mg is made, as Test solution takes 20ul to inject liquid chromatograph, and record chromatogram is to 1.5 times of main peak retention time, by area normalization Method calculates.(A: methanol: water: trifluoroacetic acid=100:900:1;B: methanol: water: trifluoroacetic acid=900:100:1)
In formula: X: the percentage composition of total impurities, % in test solution;
A1: the peak area of total impurities in test solution;
A2: total peak area in test solution.
Embodiment 3
Toluene 1080kg, 95% industrial alcohol 28kg, potassium carbonate 140kg and 4- are put into 2000L glassed steel reaction vessels Dihydroxy benaophenonel 80kg is stirred 1 hour in 53~58 DEG C.
40 DEG C are cooled to hereinafter, putting into N under nitrogen protection, N- dimethylamino chloroethanes hydrochloride 87.5kg throws and finishes, heating It is stirred 4 hours to 80~85 DEG C.
Be cooled to 40 DEG C hereinafter, plus drinking water 500kg, stir 15 minutes, stratification.Upper organic phase 900kg4% Sodium hydrate aqueous solution washs in three times, until TLC detection 4- dihydroxy benaophenonel disappears;Obtained organic phase is drunk with 800kg again It is 9 with moisture secondary washing to pH value.It is not less than 0.085MPa in vacuum degree, interior temperature is concentrated under reduced pressure molten under the conditions of being not higher than 80 DEG C Agent to no fraction steams, and obtains grease 105.5kg, obtains light yellow solid, i.e. 4- [2- (N, N- dimethylamino) ethoxy after cooling Base] benzophenone, 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone yield 97%.
Embodiment 4
100kg tetrahydrofuran, 4.5kg Lithium Aluminium Hydride are put into 500L glassed steel reaction vessels.It 20~28 DEG C of temperature control, is added dropwise The tetrahydrofuran solution (26.5kg containing cinnamic acid, tetrahydrofuran 80kg) of cinnamic acid.It is added dropwise, 45 points is stirred at 20~28 DEG C Clock.The tetrahydrofuran that 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone prepared by embodiment 3 is added at such a temperature is molten Liquid (contains 38.7kg4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, 100kg tetrahydrofuran).It finishes, in 38~43 DEG C Stirring 1 hour.
Reaction solution is transferred in 2000L glassed steel reaction vessels, tetrahydrofuran 600kg is added, it is molten that 20% sodium hydroxide is added dropwise Liquid 11kg continues stirring 15 minutes.Stirring is lower to put into anhydrous sodium sulfate 80kg, and drinking water 11kg is added dropwise.It is added dropwise and continues to stir It mixes 40 minutes.Filters pressing, filter cake are eluted with 120kg tetrahydrofuran filters pressing, and decompression steams tetrahydrofuran.Toluene 220kg is added to be heated to 90~100 DEG C of dissolved clarifications, are cooled to room temperature crystallization, and centrifugation obtains 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] Phenyl] -1,4-butanediol crude product.By crude product in 500L glassed steel reaction vessels with 150kg toluene be heated to 90~100 DEG C it is molten Clearly, it is down to room temperature crystallization, the solid after centrifugation obtains off-white powder 53kg, i.e. 1,2- diphenyl -1- in 70 DEG C of decompression dryings [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol, calculated yield 91%, HPLC content 98.6%.
Embodiment 5
1.2kg tetrahydrofuran is thrown into 5L there-necked flask, 20~28 DEG C of temperature control, cinnamyl alcohol is slowly added dropwise in 54g Lithium Aluminium Hydride Tetrahydrofuran solution (322g containing cinnamyl alcohol, tetrahydrofuran 960g), is added dropwise, and stirs 45 minutes at 20~28 DEG C.At this At a temperature of the tetrahydrofuran solution of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone prepared by embodiment 3 be added (contain 465g4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, 1.2kg tetrahydrofuran).It finishes, it is small in 38~43 DEG C of stirrings 1 When.Reaction solution is transferred in 20 liters of glass reaction kettles, tetrahydrofuran 7L is added, 20% sodium hydroxide solution is slowly added dropwise 132g is stirred 10 minutes, is added 960g anhydrous sodium sulfate, then drinking water 132g is added dropwise, be added dropwise, and stirs half an hour, is filtered.Filter Cake is washed with 1L tetrahydrofuran.It removes tetrahydrofuran under reduced pressure, adds 2.64kg toluene, be heated to 90~100 DEG C of dissolved clarifications, Slow cooling It to room temperature, filters, filter cake is refined again with 2.4kg toluene.It is filtered after being cooled to room temperature, off-white color is dried to obtain in 60 DEG C of normal pressure air blast Solid 600g, 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol yield 85.6%.
Embodiment 6
Equipped in churned mechanically 500mL there-necked flask, 4- dihydroxy benaophenonel 20g, potassium carbonate 34.8g, toluene is added 190g, acetone 10g and drinking water 2g, are heated to 75~80 DEG C of back flow reactions 5 hours, and TLC shows raw material 4- dihydroxy benaophenonel No longer reduce.
Be cooled to 40 DEG C hereinafter, plus drinking water 120g, stir, layering, abandon lower layer's water phase.Oily mutually 220 milliliter of 4% hydrogen-oxygen Change sodium solution to wash in three times, until TLC detection 4- dihydroxy benaophenonel disappears;Again with 200 milliliters of drinking water wash in two times to PH value is 8.Decompression steams solvent at 55~60 DEG C, and give light yellow oil 19.4g obtains light yellow solid, 4- [2- after cooling (N, N- dimethylamino) ethyoxyl] benzophenone yield 71.3%.
Embodiment 7
100kg tetrahydrofuran, 4.5kg Lithium Aluminium Hydride are put into 500L glassed steel reaction vessels.20~28 DEG C of temperature control, slowly The tetrahydrofuran solution (26.9kg containing cinnamyl alcohol, tetrahydrofuran 80kg) of cinnamyl alcohol is added dropwise.It is added dropwise, is stirred at 20~28 DEG C 45 minutes.The tetrahydro furan of 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone prepared by embodiment 6 is added at such a temperature It mutters solution (containing 38.7kg4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone, 100kg tetrahydrofuran).It finishes, in 38~ 43 DEG C are stirred 1 hour.
Reaction solution is transferred in 2000L glassed steel reaction vessels, tetrahydrofuran 600kg is added, it is molten that 20% sodium hydroxide is added dropwise Liquid 11kg continues stirring 15 minutes.Stirring is lower to put into anhydrous sodium sulfate 80kg, and drinking water 11kg is added dropwise.It is added dropwise and continues to stir It mixes 40 minutes.Filters pressing, filter cake are eluted with 120kg tetrahydrofuran filters pressing, and decompression steams tetrahydrofuran.Toluene 220kg is added to be heated to 90~100 DEG C of dissolved clarifications, are cooled to room temperature crystallization, and centrifugation obtains 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] Phenyl] -1,4-butanediol crude product.By crude product in 500L glassed steel reaction vessels with 150kg toluene be heated to 90~100 DEG C it is molten Clearly, it is down to room temperature crystallization, the solid after centrifugation obtains off-white powder 51.3kg, 1,2- diphenyl -1- in 70 DEG C of decompression dryings [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol yield 88%.

Claims (4)

1. Toremifene Citrate intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae - The preparation method of butanediol, it is characterised in that include the following steps:
1.2kg tetrahydrofuran is thrown into 5L there-necked flask, 54g Lithium Aluminium Hydride, is slowly added dropwise containing cinnamic acid by 20~28 DEG C of temperature control The cinnamic acid tetrahydrofuran solution of 318g, tetrahydrofuran 960g, it is added dropwise, is stirred 45 minutes at 20~28 DEG C;In the temperature Degree is lower to be added 4- [2- (N, the N- bis- for containing 465g4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone and 1.2kg tetrahydrofuran Methylamino) ethyoxyl] benzophenone tetrahydrofuran solution;It finishes, is stirred 1 hour in 38~43 DEG C;Reaction solution is transferred to In 20 liters of glass reaction kettles, tetrahydrofuran 7L is added, 20% sodium hydroxide solution 132g is slowly added dropwise, stirs 10 minutes, adds 960g anhydrous sodium sulfate, then drinking water 132g is added dropwise, it is added dropwise, stirs half an hour, filter;Filter cake is washed with 1L tetrahydrofuran It washs;It removes tetrahydrofuran under reduced pressure, adds 2.64kg toluene, be heated to 90~100 DEG C of dissolved clarifications, be slowly cooled to room temperature, filter, filter cake It is refined again with 2.4kg toluene;It is filtered after being cooled to room temperature, off-white powder 1,2- diphenyl-are dried to obtain in 60 DEG C of normal pressure air blast 1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol.
2. Toremifene Citrate intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae - The preparation method of butanediol, it is characterised in that include the following steps: to put into 100kg tetrahydro furan into 500L glassed steel reaction vessels It mutters, 4.5kg Lithium Aluminium Hydride;20~28 DEG C of temperature control, the four of the cinnamic acid of 26.5kg containing cinnamic acid, tetrahydrofuran 80kg are slowly added dropwise Hydrogen tetrahydrofuran solution;It is added dropwise, is stirred 45 minutes at 20~28 DEG C;[2- (N, the N- diformazan containing 38.7kg4- is added at such a temperature Amino) ethyoxyl] benzophenone, 100kg tetrahydrofuran 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone tetrahydro Tetrahydrofuran solution;It finishes, is stirred 1 hour in 38~43 DEG C;Reaction solution is transferred in 2000L glassed steel reaction vessels, tetrahydro furan is added Mutter 600kg, and 20% sodium hydroxide solution 11kg is added dropwise, and continues stirring 15 minutes;Stirring is lower to put into anhydrous sodium sulfate 80kg, is added dropwise Drinking water 11kg;It is added dropwise and continues stirring 40 minutes;Filters pressing, filter cake are eluted with 120kg tetrahydrofuran filters pressing, and decompression steams four Hydrogen furans;Add toluene 220kg to be heated to 90~100 DEG C of dissolved clarifications, be cooled to room temperature crystallization, is centrifuged, obtains 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol crude product;Crude product is used in 500L glassed steel reaction vessels 150kg toluene is heated to 90~100 DEG C of dissolved clarifications, is down to room temperature crystallization, and the solid after centrifugation obtains off-white color in 70 DEG C of decompression dryings Solid 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol.
3. Toremifene Citrate intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae - The preparation method of butanediol, it is characterised in that include the following steps: to throw 1.2kg tetrahydrofuran, 54g tetrahydro aluminium into 5L there-necked flask 20~28 DEG C of temperature control, the tetrahydrofuran solution of the cinnamyl alcohol of 322g containing cinnamyl alcohol, tetrahydrofuran 960g is slowly added dropwise in lithium, is added dropwise It finishes, is stirred 45 minutes at 20~28 DEG C;It is added at such a temperature and contains 465g4- [2- (N, N- dimethylamino) ethyoxyl] two Benzophenone, 1.2kg tetrahydrofuran 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone tetrahydrofuran solution;It finishes, It is stirred 1 hour in 38~43 DEG C;Reaction solution is transferred in 20 liters of glass reaction kettles, tetrahydrofuran 7L is added, is slowly added dropwise 20% sodium hydroxide solution 132g is stirred 10 minutes, is added 960g anhydrous sodium sulfate, then drinking water 132g is added dropwise, be added dropwise, stir It mixes half an hour, filters;Filter cake is washed with 1L tetrahydrofuran;It removes tetrahydrofuran under reduced pressure, adds 2.64kg toluene, it is heated to 90~ 100 DEG C of dissolved clarifications, are slowly cooled to room temperature, and filter, and filter cake is refined again with 2.4kg toluene;It is filtered after being cooled to room temperature, 60 DEG C often Drum pressure wind dries to obtain off-white powder 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae-fourth two Alcohol.
4. Toremifene Citrate intermediate 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl]-Isosorbide-5-Nitrae - The preparation method of butanediol, it is characterised in that include the following steps: to put into 100kg tetrahydro furan into 500L glassed steel reaction vessels It mutters, 4.5kg Lithium Aluminium Hydride;20~28 DEG C of temperature control, the four of the cinnamyl alcohol of 26.9kg containing cinnamyl alcohol, tetrahydrofuran 80kg are slowly added dropwise Hydrogen tetrahydrofuran solution;It is added dropwise, is stirred 45 minutes at 20~28 DEG C;[2- (N, the N- diformazan containing 38.7kg4- is added at such a temperature Amino) ethyoxyl] benzophenone, 100kg tetrahydrofuran 4- [2- (N, N- dimethylamino) ethyoxyl] benzophenone tetrahydro Tetrahydrofuran solution;It finishes, is stirred 1 hour in 38~43 DEG C;Reaction solution is transferred in 2000L glassed steel reaction vessels, tetrahydro furan is added Mutter 600kg, and 20% sodium hydroxide solution 11kg is added dropwise, and continues stirring 15 minutes;Stirring is lower to put into anhydrous sodium sulfate 80kg, is added dropwise Drinking water 11kg;It is added dropwise and continues stirring 40 minutes;Filters pressing, filter cake are eluted with 120kg tetrahydrofuran filters pressing, and decompression steams four Hydrogen furans;Add toluene 220kg to be heated to 90~100 DEG C of dissolved clarifications, be cooled to room temperature crystallization, is centrifuged, obtains 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol crude product;Crude product is used in 500L glassed steel reaction vessels 150kg toluene is heated to 90~100 DEG C of dissolved clarifications, is down to room temperature crystallization, and the solid after centrifugation obtains off-white color in 70 DEG C of decompression dryings Solid 1,2- diphenyl -1- [4- [2- (N, N- dimethylamino) ethyoxyl] phenyl] -1,4-butanediol.
CN201710248184.7A 2016-04-19 2017-04-17 The preparation method of Toremifene Citrate intermediate Active CN106966911B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2016102603977 2016-04-19
CN201610260397.7A CN106187791A (en) 2016-04-19 2016-04-19 The new preparation process of Toremifene Citrate intermediate

Publications (2)

Publication Number Publication Date
CN106966911A CN106966911A (en) 2017-07-21
CN106966911B true CN106966911B (en) 2019-06-14

Family

ID=57453020

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201610260397.7A Pending CN106187791A (en) 2016-04-19 2016-04-19 The new preparation process of Toremifene Citrate intermediate
CN201710248184.7A Active CN106966911B (en) 2016-04-19 2017-04-17 The preparation method of Toremifene Citrate intermediate

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610260397.7A Pending CN106187791A (en) 2016-04-19 2016-04-19 The new preparation process of Toremifene Citrate intermediate

Country Status (1)

Country Link
CN (2) CN106187791A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106187791A (en) * 2016-04-19 2016-12-07 福安药业集团宁波天衡制药有限公司 The new preparation process of Toremifene Citrate intermediate
CN110305024B (en) * 2018-03-27 2021-09-28 鲁南制药集团股份有限公司 Synthetic method of Beloraib intermediate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822854A (en) * 1956-07-23 1959-11-04 Wm S Merrell Co Substituted triphenylethanols and their production
US4696949A (en) * 1982-06-25 1987-09-29 Farmos Group Ltd. Novel tri-phenyl alkane and alkene derivatives and their preparation and use
CN106187791A (en) * 2016-04-19 2016-12-07 福安药业集团宁波天衡制药有限公司 The new preparation process of Toremifene Citrate intermediate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2459517A1 (en) * 2009-07-31 2012-06-06 Ranbaxy Laboratories Limited Polymorphic form of toremifene citrate and process for its preparation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822854A (en) * 1956-07-23 1959-11-04 Wm S Merrell Co Substituted triphenylethanols and their production
US4696949A (en) * 1982-06-25 1987-09-29 Farmos Group Ltd. Novel tri-phenyl alkane and alkene derivatives and their preparation and use
CN106187791A (en) * 2016-04-19 2016-12-07 福安药业集团宁波天衡制药有限公司 The new preparation process of Toremifene Citrate intermediate

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
4-(2-N,N-二甲胺基)乙氧基二苯甲酮的合成;伍杰 等;《精细与专用化学品》;20001231(第21期);第25-26页
Estrogenic Triarylcyclopropanes;G.R.Bedford等;《Journal of Medicinal Chemistry》;19741231;第17卷(第1期);第148页右栏第3段
枸橼酸托瑞米芬的中间体合成工艺改进;张瑞仁 等;《黑龙江医药科学》;20120831;第35卷(第4期);第29页合成路线

Also Published As

Publication number Publication date
CN106187791A (en) 2016-12-07
CN106966911A (en) 2017-07-21

Similar Documents

Publication Publication Date Title
CN106966911B (en) The preparation method of Toremifene Citrate intermediate
CN101056867B (en) Process for production of optically active amine derivatives
CN101668745A (en) Process for the preparation of optically active ethenylphenyl alcohols
CN111511722B (en) Method for preparing oxa-goril intermediate and composition thereof
CN101253160A (en) Improved process for the preparation of letrozole
CN108440553A (en) A kind of method of the glabridin of the asymmetric syntheses optical purity of ruthenium complex catalysts
CN102796262B (en) Method for preparing sevelamer carbonate
CN112500267A (en) Preparation of 4-bromo-2- (4' -ethoxy-benzyl) -1-chlorobenzene
CN107663171A (en) The preparation method of high-purity tolvaptan
CN110117255A (en) A kind of pleasure is cut down for Buddhist nun's impurity and preparation method thereof
CN111303105A (en) Preparation method of 7, 8-dihydroxyflavone
CN108929299A (en) Buagafuran bulk pharmaceutical chemicals and its preparation method and application
CN108424389A (en) A kind of preparation method of Ivabradine impurity
CN111018934A (en) Method for synthesizing 7 a-methyl formate-9 (11) -enameling
WO1992020331A1 (en) Receptor ligands
CN101223157B (en) Methods for synthesizing heterocyclic compounds
CN111100042B (en) Preparation method of 2-methoxy-5-sulfonamide benzoic acid
CN109574797A (en) A kind of preparation method of chirality benzylalcohol
WO2018214736A1 (en) Polyhydroxyphthalazinone compound, preparation method therefor and use thereof
CN109553621A (en) A kind of compound and its application in auspicious rich former times cloth synthesis
CN107573291A (en) A kind of preparation method and purposes of Gadoxetic acid disodium part impurity
CN103275052A (en) Method for synthesizing isoflavone by nickel-catalyzed Negishi cross coupling reaction at room temperature
CN115304537B (en) Method for preparing 6, 6-dimethyl-3-azabicyclo [3.1.0] hexane
CN101318983A (en) Whorl[(5 beta, 6 beta, 15 beta, 16 beta-dimethylene-androstane-14 beta-hydrogen-5, 7-diene-3-ketone)-17 alpha-2'-(1'-oxygen-cyclopentane-5'-ketone)] and synthesis process
CN115850220B (en) Stable amiodarone hydrochloride, preparation method and application thereof

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address

Address after: 315299 No. 366 Anping Road, Zhaobaoshan Street, Zhenhai District, Ningbo City, Zhejiang Province

Patentee after: FUAN PHARMACEUTICAL GROUP NINGBO TEAM PHARMACEUTICAL CO.,LTD.

Country or region after: China

Address before: 315201 No.6, gongsan Road, Zhuangshi, Zhenhai District, Ningbo City, Zhejiang Province

Patentee before: FUAN PHARMACEUTICAL GROUP NINGBO TEAM PHARMACEUTICAL CO.,LTD.

Country or region before: China

CP03 Change of name, title or address