CN107200841B - A kind of synthetic method of trainingization diacylglycerol - Google Patents

A kind of synthetic method of trainingization diacylglycerol Download PDF

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CN107200841B
CN107200841B CN201610153716.4A CN201610153716A CN107200841B CN 107200841 B CN107200841 B CN 107200841B CN 201610153716 A CN201610153716 A CN 201610153716A CN 107200841 B CN107200841 B CN 107200841B
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compound
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organic base
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diacylglycerol
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CN107200841A (en
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汤杰
刘敏
潘娜
管凤洁
罗宇
杨帆
于丽芳
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East China Normal University
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32Polymers modified by chemical after-treatment
    • C08G65/329Polymers modified by chemical after-treatment with organic compounds
    • C08G65/333Polymers modified by chemical after-treatment with organic compounds containing nitrogen
    • C08G65/33396Polymers modified by chemical after-treatment with organic compounds containing nitrogen having oxygen in addition to nitrogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/39Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by esterified hydroxy groups
    • C07C205/42Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by esterified hydroxy groups having nitro groups or esterified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C205/43Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by esterified hydroxy groups having nitro groups or esterified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system

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Abstract

The present invention provides a kind of methods for synthesizing trainingization diacylglycerol, with the hydroxyl in activator activating compounds formula (I), formation reactive intermediate, that is, compound formula (II) is spare, then, under the conditions of solvent and organic base, compound II and mPEG-NH2Form carbamate structures, i.e. synthesising target compound formula (III).Synthetic route of the present invention is brief, easy to operate, favorable reproducibility, high income, easy to industrialized production.

Description

A kind of synthetic method of trainingization diacylglycerol
Technical field
The present invention relates to technical field of compound preparation, the in particular to field of Antibody Production Techniques containing polyethyleneglycol lipid, tools Body is related to a kind of method and intermediate for synthesizing trainingization diacylglycerol.
Background technique
Trainingization diacylglycerol is a kind of typical PEG- lipid, and there are many PEG class drugs to be used for various disease for many years Treatment.Such as based on siRNA design drug possess potential therapeutic effect in terms of many diseases, still, they due to The high molecular weight of its own and polyanion center and curative effect cannot be played by being passively conveyed into cytoplasm, therefore, it Needed in vivo by a complicated transportation system.And trainingization diacylglycerol is proved to may be used as traditional small-molecule drug Transportation system, trainingization diacylglycerol can be self-assembled into the nanometer of macromolecular by the electrostatic interaction with polyanionic nucleic acid Grain is to encapsulate siRNA.This system is proved to hold out broad prospects in terms for the treatment of.
Have no that related trainingization diacylglycerol product is sold on domestic market, and external customization price is extremely expensive, this It is the bottleneck of current domestic nanometer formulation development.Synthetic method in relation to trainingization diacylglycerol is rarely reported, and only one at present The document of patent (EP2119738A1) and the synthesis of some PEG- liposome derivatives in relation to mPEG (2000)-DMG synthesis, but It is these route poor reproducibilities, we attempt to repeat method reported in the literature, but many experiments do not obtain target product.
Summary of the invention
Present invention aims at provide a kind of side for synthesizing trainingization diacylglycerol for the problems and shortcomings present on Method, this method have many advantages, such as brief synthetic route, easy to operate, at low cost, high income, easy to industrialized production.
To achieve the goals above, the invention proposes a kind of new method for synthesizing trainingization diacylglycerol, the method packets Include the following steps:
A. the hydroxyl in suitable activator activating compounds formula (I) is selected, is reacted under the conditions of solvent, organic base, shape Viability intermediate, that is, compound formula (II) is spare;
B. suitable solvent and organic base is selected to make compound formula (II) and mPEG-NH2Carbamate structures are formed, i.e., Synthesising target compound formula (III).
The reaction route of the method are as follows:
Wherein, n=12~15;M=22~45.
Preferably, m=22,45;N=12,13,14,15.
Preferably, the specific reaction of the method are as follows:
Preferably, compound formula (I) includes: Formula (Ia), Formula (Ib), Formula (Ic), compound Formula (Id), etc..
Preferably, compound formula (II) includes: that 14 two acyls of carbon of Formula (IIa) i.e.-p-nitrophenyl oxygen formoxyl-is sweet Oil, Formula (IIb) i.e. two acyls of pentadecane-p-nitrophenyl oxygen formoxyl-glycerol, two acyl of Formula (IIc) i.e. 16 carbon- 17 two acyls of carbon of p-nitrophenyl oxygen formoxyl-glycerol, Formula (IId) i.e.-p-nitrophenyl oxygen formoxyl-glycerol, etc..
Preferably, compound formula (III) includes: Formula (IIIa) i.e. (1000)-ten four carbon diacylglycerol of mPEG, changes Close object formula (IIIb) i.e. mPEG (1000)-pentadecane diacylglycerol, Formula (IIIc) i.e. two acyl of (1000)-ten six carbon of mPEG Glycerol, Formula (IIId) i.e. (1000)-ten seven carbon diacylglycerol of mPEG, Formula (IIIe) i.e. mPEG (2000)-ten Four carbon diacylglycerols, Formula (IIIf) i.e. mPEG (2000)-pentadecane diacylglycerol, Formula (IIIg) i.e. mPEG (2000)-ten six carbon diacylglycerols, Formula (IIIh) i.e. (2000)-ten seven carbon diacylglycerol of mPEG, etc..
In the step a, preferably, the activator is to nitro phenyl chloroformate.
In the step a, the solvent is aprotic solvent comprising methylene chloride, chloroform, toluene, tetrahydrofuran, two Chloroethanes or DMF.Preferably, solvent is methylene chloride.
In the step a, the organic base is pyridine, triethylamine or diisopropylethylamine.The reaction temperature be 0~ 25 DEG C, the reaction time is 0.5~1.5h.
Wherein, the ratio between the compound formula (I), mole of the activator, the alkali be 1~1.2:1.5~3:2~ 3.Preferably, the compound formula (I), to the ratio between mole of nitro phenyl chloroformate, pyridine be 1:1.5:2.
Preferably, after the completion of the priming reaction, still further comprising step in step a: being washed with cold saturated ammonium chloride Pyridine in dereaction liquid, then be extracted with dichloromethane, it washes, dry, being evaporated, column chromatography.Eluant, eluent in column chromatography procedure Mixture including ethyl acetate, petroleum ether or above-mentioned solvent.
Preferably, the compound formula (II) is dissolved in methylene chloride in the step b, the alkali is 4- bis- Methylamino pyridine (DMAP), the reaction temperature are 0~25 DEG C, and the reaction time is 5~6 hours.
Preferably, in the step b, the compound formula (II), the mPEG-NH2, the organic base mole it Than for 1.5~2:1:1.
In the step b, the solvent is aprotic solvent comprising methylene chloride, chloroform, toluene, tetrahydrofuran, two Chloroethanes, N,N-dimethylformamide;The organic base includes pyridine, triethylamine, diisopropylethylamine or 4- dimethylamino pyrrole Pyridine (DMAP).
Preferably, after the reaction terminates, still further comprising step in the step b: being washed away instead with dilute hydrochloric acid The organic base in liquid is answered, then is extracted with dichloromethane, washes, dry, be evaporated, be beaten.
In the present invention, raw material diacylglycerol (being indicated below with compound formula (I)) can be according to existing document (Organic Letters2007Vol.9, No.2 323-326) easily synthesize.
Beneficial effect of the present invention includes the following: the diacylglycerol (compound I) of the invention for using carbon chain lengths different for original Material has used the activator that do not reported to carry out activated hydroxyl groups to nitro phenyl chloroformate, again with polyoxamide formation amino first Acrylate structure, the different compound trainingization diacylglycerol of synthesis carbon chain lengths.Synthetic route of the present invention is brief, and the reaction time is short, High income, total recovery is up to 75%~85%.(EP2119738A1) in the prior art, the reaction time be 12~for 24 hours, yield is only It is 30% or so.The present invention is not related to the use of expensive reagent, reduces costs;Synthetic method of the present invention is easy to operate, condition It is easily-controllable, be easy to large-scale production.
The midbody compound that do not reported, i.e. compound formula (II) are also disclosed in the present invention, wherein n= 12~15.
Preferably, compound formula (II) includes: that 14 two acyls of carbon of Formula (IIa) i.e.-p-nitrophenyl oxygen formoxyl-is sweet Oil, Formula (IIb) i.e. two acyls of pentadecane-p-nitrophenyl oxygen formoxyl-glycerol, two acyl of Formula (IIc) i.e. 16 carbon- 17 two acyls of carbon of p-nitrophenyl oxygen formoxyl-glycerol, Formula (IId) i.e.-p-nitrophenyl oxygen formoxyl-glycerol, etc..
Specific embodiment
In conjunction with following specific embodiments, the present invention is described in further detail, and of the invention protects content not limit to In following embodiment.Without departing from the spirit and scope of the invention, those skilled in the art it is conceivable that variation and excellent Point is all included in the present invention, and using appended claims as protection scope.Implement process of the invention, condition, Reagent, experimental method etc. are among the general principles and common general knowledge in the art, this hair in addition to what is specifically mentioned below It is bright that there are no special restrictions to content.In order to be more clearly understood that technology contents of the invention, furtherly now in conjunction with embodiment It is bright as follows:
Embodiment 1
Compound IIa i.e. 14 two acyls of carbon-p-nitrophenyl oxygen formoxyl-glycerol preparation
1024mg compound Ia (1eq) and 602mg is dissolved in 15mL to nitro phenyl chloroformate (1.5eq) under ice-water bath Methylene chloride in, the pyridine of 0.46mL (3eq) is slowly added dropwise, restores to room temperature.After half an hour, TLC detection has been reacted Entirely.The pyridine in reaction solution first is washed away with saturated ammonium chloride solution, organic phase is extracted with DCM (20mL × 3), merges organic phase, Use Na2SO4After drying, is rotated and is done with Rotary Evaporators, obtain yellowish crude product, then cross column with petroleum ether and ethyl acetate gradient, Obtain pure white solid i.e. compound IIa, 1192mg.Yield 98%.
1H NMR(400MHz,CDCl3): δ 8.29 (d, J=9.2Hz, 2H), 7.39 (d, J=9.2Hz, 2H), 5.46- 5.32 (m, 1H), 4.37 (d, J=11.6Hz, 4H), 2.35 (dt, J=9.6,7.6Hz, 4H), 1.63 (d, J=6.7Hz, 4H), 1.38-1.18 (m, 40H), 0.88 (t, J=6.8Hz, 6H)
MS (ESI): m/z=678.45 [M+H]+
2 compound IIb of embodiment, that is, two acyls of pentadecane-p-nitrophenyl oxygen formoxyl-glycerol preparation
540mg compound Ib (1eq) and 401mg is dissolved in 15mL to nitro phenyl chloroformate (2eq) by ice-water bath condition Solvent chloroform in, 10min is stirred under the conditions of ice-water bath, then slowly be added dropwise 0.415mL (3eq) triethylamine, slowly restore to Room temperature.After half an hour, TLC detects fully reacting.The pyridine in reaction solution first is washed away with saturated ammonium chloride solution, with DCM (20mL × 3) organic phase is extracted, merges organic phase, uses Na2SO4After drying, is rotated and done with Rotary Evaporators, obtain yellowish crude product, then Column is crossed with petroleum ether and ethyl acetate gradient, obtains pure white solid i.e. compound IIb, 635mg.Yield 90%.
1H NMR(400MHz,CDCl3): δ 8.29 (d, J=9.2Hz, 2H), 7.39 (d, J=9.2Hz, 2H), 5.46- 5.32 (m, 1H), 4.25-4.5 (d, J=11.6Hz, 4H), 2.35 (d, J=9.6,7.6Hz, 4H), 1.66 (d, J=6.7Hz, 4H), 1.38-1.26 (m, 44H), 0.88 (t, J=6.8Hz, 6H)
MS (ESI): m/z=706.48 [M+H]+
3 compound IIc of embodiment i.e. 16 two acyls of carbon-p-nitrophenyl oxygen formoxyl-glycerol preparation
1136mg compound Ic (1eq) and 600mg is dissolved in nitro phenyl chloroformate (1.5eq) under the conditions of ice-water bath In the methylene chloride of 15mL, the pyridine of 0.46mL (3eq) is added dropwise, restores to room temperature.After half an hour, TLC detection has been reacted Entirely.The pyridine in reaction solution first is washed away with saturated ammonium chloride solution, organic phase is extracted with DCM (20mL × 3), merges organic phase, Use Na2SO4After drying, is rotated and is done with Rotary Evaporators, obtain yellowish crude product, then cross column with petroleum ether and ethyl acetate gradient, Obtain pure white solid i.e. compound IIc, 1350mg.Yield 92%.
1H NMR(400MHz,CDCl3): δ 8.29 (d, J=9.2Hz, 2H), 7.39 (d, J=9.2Hz, 2H), 5.46- 5.32 (m, 1H), 4.37 (d, J=11.6Hz, 4H), 2.35 (dt, J=9.6,7.6Hz, 4H), 1.63 (d, J=6.7Hz, 4H), 1.38-1.18 (m, 48H), 0.88 (t, J=6.8Hz, 6H)
MS (ESI): m/z=734.51 [M+H]+
4 compound IId of embodiment i.e. 17 two acyls of carbon-p-nitrophenyl oxygen formoxyl-glycerol preparation
596mg compound Id (1eq) and 301mg is dissolved in nitro phenyl chloroformate (1.5eq) under the conditions of ice-water bath In the methylene chloride of 15mL, then the pyridine of 0.23mL (3eq) is slowly added dropwise, restores to room temperature.After half an hour, TLC detection Fully reacting.The pyridine in reaction solution first is washed away with saturated ammonium chloride solution, organic phase is extracted with DCM (20mL × 3), is associated with Machine phase, uses Na2SO4It after drying, is rotated with Rotary Evaporators dry, obtains yellowish crude product, then with petroleum ether and ethyl acetate gradient Column is crossed, pure white solid i.e. compound IId, 663mg is obtained.Yield 87%.
1H NMR(400MHz,CDCl3): δ 8.29 (d, J=9.2Hz, 2H), 7.39 (d, J=9.2Hz, 2H), 5.46- 5.32 (m, 1H), 4.37-4.15 (d, J=11.6Hz, 4H), 2.32 (dt, J=9.6,7.6Hz, 4H), 1.63 (d, J= 6.7Hz, 4H), 1.38-1.18 (m, 52H), 0.88 (t, J=6.8Hz, 6H)
MS (ESI): m/z=762.54 [M+H]+
Embodiment 5
The preparation of (1000)-ten four carbon diacylglycerol of 5.1 compound IIIa, that is, mPEG
Compound IIa (100mg, 1.5eq) and mPEG (1000)-NH are taken at room temperature2(100mg, 1eq) is dissolved in molecular sieve In dried solvent 20mL DCM, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction Liquid is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merges organic phase, with anhydrous sodium sulfate it is dry after, with true Empty Rotary Evaporators are rotated to doing, and obtain crude product.Crude product finally obtains purity using ether mashing (3mL × 3), centrifugation For 97% white solid product, i.e. compound IIIa 112mg, yield 70%.
1H NMR(400MHz,CDCl3): δ 5.85 (m, 1H), 4.42-4.19 (m, 4H), 3.68 (d, J=107.7Hz, 88H),3.38(s,3H),3.29(s,2H),2.35-2.32(s,4H),1.73(s,2H),1.66(s,4H),1.26(m,44H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=1597.08 [M+H]+
The preparation of (1000)-ten four carbon diacylglycerol of 5.2 compound IIIa, that is, mPEG
Compound IIa (133mg, 2eq) and mPEG (1000)-NH are taken at room temperature2It is dry that (100mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 96% white solid product, i.e. compound IIIa 125mg, yield 85%.
The preparation of 6 compound IIIb, that is, mPEG (1000) of embodiment-pentadecane diacylglycerol
Compound IIb (140mg, 2eq) and mPEG (1000)-NH are taken at room temperature2It is dry that (100mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 97% white solid product, i.e. compound IIIb 138mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.85-5.65 (m, 1H), 4.42-4.19 (m, 4H), 3.68 (d, J= 107.7Hz,88H),3.38(s,3H),3.29(s,2H),2.35-2.32(s,4H),1.73(s,2H),1.66(s,4H),1.26 (m, 48H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=1625.12 [M+H]+
The preparation of (1000)-ten six carbon diacylglycerol of 7 compound IIIc, that is, mPEG of embodiment
Compound IIc (147mg, 2eq) and mPEG (1000)-NH are taken at room temperature2It is dry that (100mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 96% white solid product, i.e. compound IIIc 140mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.85-5.8 (m, 1H), 4.42-4.20 (m, 4H), 3.68 (d, J= 107.7Hz,88H),3.38(s,3H),3.29(s,2H),2.35-2.32(s,4H),1.73(s,2H),1.661(s,4H), 1.26 (m, 52H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=1653.15 [M+H]+
The preparation of (1000)-ten seven carbon diacylglycerol of 8 compound IIId, that is, mPEG of embodiment
Compound IId (147mg, 2eq) and mPEG (1000)-NH are taken at room temperature2It is dry that (100mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 96% white solid product, i.e. compound IIId 137mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.85-5.8 (m, 1H), 4.42-4.29 (m, 4H), 3.68 (d, J= 107.7Hz,180H),3.38(s,3H),3.29(s,2H),2.35-2.32(s,4H),1.77(s,2H),1.61(s,4H), 1.26 (m, 56H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=1681.18 [M+H]+
The preparation of (2000)-ten four carbon diacylglycerol of 9 compound IIIe, that is, mPEG of embodiment
Compound IIa (133mg, 2eq) and mPEG (2000)-NH are taken at room temperature2It is dry that (197mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 97% white solid product, i.e. compound IIIe 218mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.45-5.09 (m, 1H), 4.42-4.09 (m, 4H), 3.68 (d, J= 107.7Hz,180H),3.38(s,3H),3.29(s,2H),2.31(s,4H),1.77(s,2H),1.61(s,4H),1.26(m, 44H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=2609.69 [M+H]+
The preparation of 10 compound IIIf, that is, mPEG (2000) of embodiment-pentadecane diacylglycerol
At room temperature by compound IIb (280mg, 2eq) and mPEG (2000)-NH2It is dry that (394mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 24mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution Washed with the dilute hydrochloric acid of 2mol/L, then extract (30mL × 3) with DCM, merge organic phase, with anhydrous sodium sulfate it is dry after, with true Empty Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, obtaining purity is 97% White solid product, i.e. compound IIIf 415mg, yield 80%.
1H NMR(400MHz,CDCl3): δ 5.45-5.09 (m, 1H), 4.42-4.09 (m, 4H), 3.68 (d, J= 107.7Hz,180H),3.38(s,3H),3.29(s,2H),2.31(s,4H),1.77(s,2H),1.61(s,4H),1.26(m, 48H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=2637.72 [M+H]+
The preparation of (2000)-ten six carbon diacylglycerol of 11 compound IIIg, that is, mPEG of embodiment
Compound IIc (147mg, 2eq) and mPEG (2000)-NH are taken at room temperature2It is dry that (197mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 96% white solid product, i.e. compound IIIg 223mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.45-5.09 (m, 1H), 4.42-4.09 (m, 4H), 3.68 (d, J= 107.7Hz,180H),3.38(s,3H),3.29(s,2H),2.31(s,4H),1.77(s,2H),1.61(s,4H),1.26(m, 52H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=2665.75 [M+H]+
The preparation of (2000)-ten seven carbon diacylglycerol of 12 compound IIIh, that is, mPEG of embodiment
Compound IId (147mg, 2eq) and mPEG (2000)-NH are taken at room temperature2It is dry that (197mg, 1eq) is dissolved in molecular sieve In the solvent 20mL DCM of dry mistake, the DMAP (1eq) of 12mg is added.After reacting 6h, after TLC detects fully reacting, reaction solution It is washed with 2mol/L dilute hydrochloric acid, then extracts (20mL × 3) with DCM, merge organic phase, after anhydrous sodium sulfate drying, use vacuum Rotary Evaporators are rotated to doing, and obtain crude product.Crude product is using ether mashing (3mL × 3), and centrifugation, finally obtaining purity is 96% white solid product, i.e. compound IIIh 225mg, yield 85%.
1H NMR(400MHz,CDCl3): δ 5.45-5.09 (m, 1H), 4.42-4.09 (m, 4H), 3.68 (d, J= 107.7Hz,180H),3.38(s,3H),3.29(s,2H),2.31(s,4H),1.77(s,2H),1.61(s,4H),1.26(m, 56H), 0.87 (d, J=6.5Hz, 6H)
MS (ESI): m/z=2693.78 [M+H]+
Protection content of the invention is not limited to above embodiments.Without departing from the spirit and scope of the invention, originally Field technical staff it is conceivable that variation and advantage be all included in the present invention, and with appended claims be protect Protect range.

Claims (9)

1. a kind of method for synthesizing trainingization diacylglycerol, characterized in that it comprises the following steps:
A. anti-under the conditions of solvent, organic base with activator to the hydroxyl in the compound of nitro phenyl chloroformate activation formula (I) It answers, forms the compound of reactive intermediate, that is, formula (II);
B. make the compound and mPEG-NH of the formula (II) with solvent and organic base2Reaction forms carbamate structures, synthesizes The target compound of formula (III);
Wherein, n=12~15;N'=22~45.
2. the method according to claim 1, wherein in the step a, the compound of the formula (I), the work The ratio between agent, mole of the organic base are 1~1.2:1.5~3:2~3.
3. the method according to claim 1, wherein in the step a, the solvent be methylene chloride, chloroform, Toluene, tetrahydrofuran, dichloroethanes or DMF;The organic base is pyridine, triethylamine or diisopropylethylamine.
4. the method according to claim 1, wherein the reaction temperature is 0~25 DEG C, institute in the step a Stating the reaction time is 0.5~1.5h.
5. the method according to claim 1, wherein in the step a, after the completion of the priming reaction, also into One step is washed, is dried, being evaporated, column comprising steps of wash away the organic base in reaction solution with dilute hydrochloric acid, then be extracted with dichloromethane Chromatography;Eluant, eluent in the column chromatography procedure includes the mixture of ethyl acetate, petroleum ether or above-mentioned solvent.
6. the method for synthesis trainingization diacylglycerol according to claim 1, which is characterized in that in the step b, the formula (II) compound and the mPEG-NH2, the ratio between the mole of the organic base be 1.5~2:1:1.
7. the method according to claim 1, wherein in the step b, the solvent be methylene chloride, chloroform, Toluene, tetrahydrofuran, dichloroethanes, N,N-dimethylformamide;The organic base includes pyridine, triethylamine, diisopropyl second Amine or 4-dimethylaminopyridine.
8. the method according to claim 1, wherein the reaction temperature is 0~25 DEG C, institute in the step b Stating the reaction time is 5~6 hours.
9. the method according to claim 1, wherein in the step b, after the reaction terminates, also into One step is washed, dried, be evaporated, closed comprising steps of wash away the organic base in reaction solution with dilute hydrochloric acid, then be extracted with dichloromethane Suitable solvent mashing.
CN201610153716.4A 2016-03-17 2016-03-17 A kind of synthetic method of trainingization diacylglycerol Expired - Fee Related CN107200841B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005051351A2 (en) * 2003-11-21 2005-06-09 Alza Corporation Gene delivery mediated by liposome-dna complex with cleavable peg surface modification
CN1915968A (en) * 1999-10-08 2007-02-21 阿尔萨公司 Neutral-cationic lipid for nucleic acid and drug delivery
EP2119738B1 (en) * 2007-02-05 2014-04-16 Nippon Shinyaku Co., Ltd. Polyethylene glycol derivative

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1915968A (en) * 1999-10-08 2007-02-21 阿尔萨公司 Neutral-cationic lipid for nucleic acid and drug delivery
WO2005051351A2 (en) * 2003-11-21 2005-06-09 Alza Corporation Gene delivery mediated by liposome-dna complex with cleavable peg surface modification
EP2119738B1 (en) * 2007-02-05 2014-04-16 Nippon Shinyaku Co., Ltd. Polyethylene glycol derivative

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