CN108164517A - (2- hexahydrotoluene -1- bases) imido base class compound and its application in hyperlipidemia - Google Patents
(2- hexahydrotoluene -1- bases) imido base class compound and its application in hyperlipidemia Download PDFInfo
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- CN108164517A CN108164517A CN201810144998.0A CN201810144998A CN108164517A CN 108164517 A CN108164517 A CN 108164517A CN 201810144998 A CN201810144998 A CN 201810144998A CN 108164517 A CN108164517 A CN 108164517A
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- compound
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- coa reductase
- hexahydrotoluene
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
Abstract
The invention discloses a kind of (2 hexahydrotoluene, 1 base) imido base class compound, structural formula is：
Description
Technical field
The invention belongs to research fields before pharmaceutical synthesis and clinical drug, and it is sub- to be related to a kind of (2- hexahydrotoluene -1- bases)
Amino compound and its application in hyperlipidemia.
Technical background
Hyperlipidemia（hyperlipidemia）Refer to the T-CHOL in blood plasma（Total Cholesterol, TC）With
（Or）Triglycerides（Triglyceride, TG）Level raising.Hyperlipidemia is to endanger the elderly's body and mind in aging society to be good for
The serious systemic metabolic disorder disease of health, it is the heart and brain blood such as cerebral apoplexy, coronary heart disease, myocardial infarction and atherosclerosis
Pipe disease（Cardiovascular disease, CVD）One of Major Risk Factors.The report of the World Health Organization also refers to
Go out, the raising of cholesterol levels is one of big main cause of death in the whole world five, and hyperlipidemia has become a getting worse at present
Social public health problem.With the development of the social economy, continuous improvement and the behavior and life style of living standards of the people
Variation, Chinese population average serum total cholesterol level are being stepped up.Therefore, novel blood lipid-lowering medicine is found to control to improve
Level is treated for improving the elderly's quality of life, improving disease present situation has great realistic meaning.
3- hydroxyl 3- methyl glutaryl coenzyme A reductases（HMG-CoA reductase）It is Biosynthesis of cholesterol initial stage
Rate-limiting enzyme, HMG-CoA reductase inhibitor can inhibit the biosynthesis of cholesterol, can also stimulate LDL receptor
Synthesis, increase the intake to low-density lipoprotein particle, finally make T-CHOL in blood plasma, low-density lipoprotein and carry fat egg
The horizontal of nB reduces, and raises simultaneously High-density Lipoprotein-cholesterol and moderate reduction serum triglyceride level.In addition,
Statins further include other pleiotropic effects to the treatment of the angiocardiopathy based on atherosclerosis, such as improve blood
Endothelial tube function inhibits vascular smooth muscle cell curing and migration, the stability for maintaining focal plaque, inhibits the shape of foam cells
Into etc..There is also some adverse reactions such as myalgia, hepatic injuries for statins（Increase blood cretinephosphokinase, striated muscle is molten
Solution）, at present, the research of HMG-CoA reductase inhibitor is more deepened, and seeks the structure that completely new activity is more preferable, toxicity is lower
Or optimization is transformed to existing structure, it is used to control to obtain a kind of HMG-CoA reductase inhibitor of new structure
Treat hyperlipidemia.
Invention content
One of the objects of the present invention is to provide a kind of (2- hexahydrotoluene -1- bases) imido base class compound, structures
Formula is as follows：
。
It is pre- in disease as HMG-CoA reductase inhibitor another object of the present invention is to provide a kind of compound
Application in anti-and/or treatment.
Another object of the present invention is to provide the compound in prevention and/or treatment hyperlipidemia is prepared
Application.
Further, the compound reduces T-CHOL, triglycerides and improves high-density lipoprotein and contains in preparation
Measure the application in drug.
Another object of the present invention is to provide a kind of synthetic method of the compound, synthetic route is：
。
Further, synthesis step is：
1) aminating reaction of carbonyl alpha-position occurs in organic solvent for compound 1 and compound 2, generates compound 3；
2) in the presence of acid binding agent, acylation reaction generation compound 4 occurs for the amino in compound 3；
3) under compound 4 and 6- (tertiary butyl) -2- (3- phenylpropionyls amido) benzo [b] thiophene -3- carboxylic acid, ethyl ester heating conditions
Cyclization generation compound 5 occurs；
4) hydrolysis generation compound 6 occurs for compound 5；
5) carbonyl of compound 6 reacts final (E) -6- (tertiary butyl) -2- (1- (3- (2- of generation with 2- methylcyclohexyl amine again
Hexahydrotoluene -1- bases) imino group) butyl) -2,5- diisopropyl -4- phenyl -1H- pyrroles -3- formamido groups) benzo [b] thiophene
Fen -3- carboxylic acid, ethyl esters (compound 7).
Further, organic solvent can be dichloromethane in step 1)（It is preferred that 1,2- dichloroethanes）, acetonitrile, N, N- bis-
Methylformamide (DMF), ethyl acetate, toluene, preferably one or several kinds of mixing in dimethylbenzene, acetonitrile.
Further, the acid binding agent in step 2) can be the organic bases, preferably triethylamine such as triethylamine, pyridine.
Further, heating condition is 40 DEG C-reflux in step 3), is preferably flowed back.
Obviously, the above according to the present invention according to the ordinary technical knowledge and means of this field, is not departing from this hair
Under the premise of bright above-mentioned basic fundamental thought, the modification, replacement or change of other diversified forms can also be made.
Specific embodiment
Embodiment 1：(2- (penta ring -2- bases of 2- methyl-1,3-dioxies) ethyl) valinate（Structural formula is as follows）Conjunction
Into：
At room temperature, first by 2- (2- methyl-1s, 3- dioxolanes -2- bases) second -1- amine (compound 2) (28.86g, 220mmol)
It is dissolved in acetonitrile, above-mentioned solution is then added to the bromo- 4- ethyoxyls -2- methyl -4- oxos butyl- 1- bases of 3- under stiring
In acetonitrile (350mL) solution of (compound 1) (41.61g, 200mmol) and triethylamine (42mL, 302mmol).By the mixed of gained
It closes object to be stirred at room temperature overnight, pour into 500mL ether.Gained suspension 300mL water is extracted, then with 300mL concentration
Hydrochloric acid for 2mol/L is extracted twice.Adding in 25% sodium hydrate aqueous solution of mass fraction makes the extract of merging alkalize, and uses
The ethyl acetate of 500mL × 2 is extracted twice.Extract is merged, successively with water and saturated common salt water washing, uses anhydrous magnesium sulfate
It is dry.After being filtered to remove drier, solvent volatilization crystallization obtains (2- (2- methyl-1s, the 3- dioxolanes -2- of 45.54g yellow
Base) ethyl) valinate (compound 3), yield 87.8%.1H-NMR (400 MHz, CDCl3) δ:0.95(s, 3H),
0.97(s, 3H), 1.21(t, 3H), 1.27(s, 3H), 1.76(t, 2H), 2.23(s, 1H), 2.39(m, 1H),
2.57(t, 2H), 2.83(d, 1H), 3.75-3.96(m, 4H), 4.11(q, 2H). 13C-NMR (125 MHz,
CDCl3) δ: 14.68, 19.04, 24.25, 29.10, 41.17, 44.55, 61.74, 64.62, 65.78,
110.10,172.92.LC-MS(ESI, pos, ion) m/z: 260[M+1].
Embodiment 2：N- isobutyryls-N- (2- (penta ring -2- bases of 2- methyl-1,3-dioxies) ethyl) valine（Structural formula is as follows）
Synthesis：
The compound 3 (25.94g, 100mmol) synthesized in embodiment 1 is dissolved in dichloromethane (200mL) and triethylamine
In the solution of (28.6mL, 205mmol), obtained mixture is then cooled to 0 DEG C under dry nitrogen atmosphere.Under stirring
Dichloromethane (50mL) solution of isobutyryl chloride (11mL, 106mmol) is slowly added dropwise.After being added dropwise to complete, mixture is continued to stir
It mixes 80 minutes, is subsequently poured into the ether of 100mL.By obtained ethereal solution successively with water, the hydrochloric acid of 2mol/L, unsaturated carbonate hydrogen
Sodium water solution and saturated common salt water washing, then dried with anhydrous magnesium sulfate.Evaporation solvent after obtain 25g crude product N- isobutyryls-
N- (2- (penta ring -2- bases of 2- methyl-1,3-dioxies) ethyl) valine (compound 4).By crude Compound 4 (25g,
82.95mmol) be added to sodium hydroxide (12g, 300mmol) methanol aqueous solution (480mL, 5:1) it is heated to reflux in 3 hours.
Obtained solution is cooled to room temperature, after methanol is concentrated, the water for adding 500mL is diluted.Then the solution that will be obtained
It is extracted with ether, with the hydrochloric acid Acidified aqueous layer of 0 DEG C of 6mol/L, is extracted twice with the ethyl acetate of 300mL × 2.It will close
And extract saturated common salt water washing, anhydrous magnesium sulfate obtains the N- isobutyryls after 20g is refined after being dried and evaporated solvent
Base-N- (2- (2- methyl-1s, 3- dioxolanes -2- bases) ethyl) valine (compound 4), yield 66.4%.1H-NMR (400
MHz, CDCl3) δ:0.95(s, 3H), 0.97(s, 3H), 1.08(s, 3H), 1.11(s, 3H),1.26(s, 3H),
1.88(t, 2H), 2.60-2.81(m, 2H), 3.33-3.43(m, 2H), 3.74-3.95(m, 4H), 4.90(d,
1H). 13C-NMR (125 MHz, CDCl3) δ: 19.18, 19.33, 24.25, 30.05, 32.74, 42.37,
43.16, 61.21, 64.62, 109.38, 173.70,177.47.LC-MS(ESI, pos, ion) m/z: 302[M+
1].
Embodiment 3：6- (tertiary butyl) -2- (2,5- diisopropyls -1- (2- (penta ring -2- bases of 2- methyl-1,3-dioxies) ethyl) -
- 3 formamido of 4- phenyl -1H- pyrroles) benzo [b] thiophene -3- carboxylic acid, ethyl esters（Structural formula is as follows）Synthesis：
Embodiment 2 is synthesized into obtained compound 4 (20g, 66.36mmol) and 6- (tertiary butyl) -2- (3- phenylpropionyls amido)
The mixture of benzo [b] thiophene -3- carboxylic acid, ethyl esters (38g, 93.71mmol) is heated at 90 DEG C and is stirred 2 hours.It then will be mixed
It closes object to be cooled to room temperature, by silica gel chromatograph, (eluant, eluent is hexane：Ethyl acetate=4:1) it purifies twice, you can divide from raw material
From obtain 6- (tertiary butyl) -2- (2,5- diisopropyls -1- (2- (penta ring -2- bases of 2- methyl-1,3-dioxies) ethyl) -4- phenyl -
- 3 formamido of 1H- pyrroles) benzo [b] thiophene -3- carboxylic acid, ethyl esters (compound 5), then with isopropyl ether recrystallize again
To the compound 5 of 18.40g white crystallines, yield 43%.1H-NMR (400 MHz, CDCl3) δ:1.27(s, 3H),
1.29-1.31(m, 15H), 1.32(s, 9H), 2.15(t, 2H), 3.44(m, 4H), 3.76-3.95(m, 4H),
4.03(q, 2H), 4.16(t, 2H),7.39-7.53(m, 6H), 7.69(d, 1H),8.01(s, 1H). 13C-NMR
(125 MHz, CDCl3) δ: 14.68, 21.52, 24.25, 25.31, 25.40, 31.36, 35.35, 42.06,
47.56, 61.45, 64.62, 109.38, 110.29, 120.28, 123.44, 124.00, 124.86, 125.07,
126.28, 127.20, 128.18, 129.27, 131.23, 136.27, 137.60, 146.98, 152.06,
153.26, 160.84,166.73.LC-MS(ESI, pos, ion) m/z: 645[M+1].
Embodiment 4：(tertiary butyl) -2- (2,5- diisopropyls -1- (3- oxos butyl) -4- phenyl -1H- pyrroles's -3- formyl ammonia
Base) benzo [b] thiophene -3- Ethyl formates（Structural formula is as follows）Synthesis：
Embodiment 3 is synthesized to the absolute ethyl alcohol of obtained compound 5 (18.40g, 28.53mmol) and concentrated hydrochloric acid (0.4mL)
(120mL) solution is heated to reflux 20 hours.Reaction mixture is cooled to room temperature, after concentration, then obtained mixture is dissolved in
Acetone：Water=3:In the solution of 1 (120mL), the PTSA of 5g is added（Para toluene sulfonamide）.Solution is heated to reflux and stirred
Two days, solution is cooled to room temperature after the completion of reaction, adds 500mL ether and 200mL saturated salt solutions, it is organic after liquid separation
Layer is successively with saturated sodium bicarbonate aqueous solution and saturated common salt water washing, anhydrous magnesium sulfate drying concentration.The grease that will be obtained
It is dissolved in the isopropyl ether of heat of minimum, after cooling, filtering obtains 11.91g off-white colors (tertiary butyl) -2- (2,5- diisopropyls
Base -1- (3- oxos butyl) -4- phenyl -1H- pyrroles -3- formamido groups) benzo [b] thiophene -3- Ethyl formates (compound 6),
Yield 69.5%.1H-NMR (400 MHz, CDCl3) δ:1.28-1.31(m, 15H), 1.32(s, 9H), 2.10(s,
3H), 2.93(t, 2H),3.44(m, 2H), 4.03(q, 2H), 4.29(t, 1H),4.63(t, 1H),7.39-7.53
(m, 6H), 7.69(d, 1H),8.03(s, 1H). 13C-NMR (125 MHz, CDCl3) δ: 14.68, 21.52,
25.31, 25.40, 28.59, 31.36, 35.35, 43.46, 49.38, 61.45, 110.29, 120.28,
123.44, 124.00, 124.86, 125.07, 126.28, 127.20, 128.18, 129.27, 131.23,
136.27, 137.60, 146.98, 152.06, 153.26, 160.84, 166.73,209.08.LC-MS(ESI, pos,
ion) m/z: 601[M+1].
Embodiment 5：(E) -6- (tertiary butyl) -2- (1- (3- (2- hexahydrotoluene -1- bases) imino group) butyl) -2,5- diisopropyls
Base -4- phenyl -1H- pyrroles -3- formamido groups) benzo [b] thiophene -3- carboxylic acid, ethyl esters（Structural formula is as follows）Synthesis：
Stirring rod will be housed, the 250mL round-bottomed flasks of Dean-Stark water knockout drums and reflux condenser take out from baking oven, true
Sky is lower to be cooled down, and backfilled with argon gas.Under argon gas stream, by toluene (100mL), embodiment 4 synthesizes obtained compound 6
(11.91g, 19.82mmol), 2- methylcyclohexyls amine (2.24g, 19.82mmol) and p-methyl benzenesulfonic acid monohydrate (1-
2mol%) it is introduced into reaction flask.Then it flows back under stiring, until being collected into centainly in Dean-Stark pipeline bottoms
Measure the water of (about 0.36g).Then reaction mixture by diatomite is filtered, and evaporates volatile organic matter, so
(boiling point is 105 DEG C of about 1 millitorrs of pressure) is distilled by Kugelrohr afterwards and obtains 12.14g products (E) -6- (tertiary butyl) -2- (1-
(3- (2- hexahydrotoluene -1- bases) imino group) butyl) -2,5- diisopropyl -4- phenyl -1H- pyrroles -3- formamido groups) benzene
And [b] thiophene -3- carboxylic acid, ethyl esters (compound 7), for yellow crystals, yield 88%.1H-NMR (400 MHz, CDCl3) δ:
1.00(dd, 3H), 1.28-1.35(m, 24H), 1.47-1.89(m, 9H), 2.10(s, 3H), 2.62(m, 2H),
3.16(m, 1H), 3.48(m, 1H), 3.78(m, 1H), 4.16(m, 4H), 7.29-7.40(m, 6H), 7.82(m,
2H).13C-NMR (125 MHz, CDCl3) δ:14.68, 17.54, 20.8, 21.52, 25.31, 25.34, 25.39,
25.4, 31.36, 32.47, 32.67, 35.35, 37.65, 38.79, 50.24, 61.45, 68.44, 110.29,
120.28, 123.44, 124, 124.86, 125.07, 126.28, 127.2, 128.18, 129.27, 131.23,
136.27, 137.6, 146.98, 152.06, 153.26, 160.84, 166.73, 173.94.LC-MS(ESI, pos,
ion) m/z: 696.4[M+1].
Test example：To the inhibiting effect of the HMG-CoA reductase of hyperlipemia in mice
First, the preparation of fat emulsion
Take 2g propylthiouracil (PTU)s finely ground in mortar, it is spare.25g lards is taken to melt in 40 DEG C of heating water baths, are put in mortar, are added in
15g cholesterol, 2g propylthiouracil (PTU)s, 1g sugar, are sufficiently stirred, dissolve.Add in a concentration of 10% cholic acid sodium water solution slowly again
20ml, and be stirred continuously, Tween 80 10ml, propylene glycol 30ml are then added in, grinding emulsification is uniform, finally adds distilled water extremely
100ml.Be fitted into closed container, refrigerate, during use prior to 37 DEG C water-baths melt.
2nd, hyperlipemia in mice modeling and grouping
Male ICR mouse, 18~22g of weight are randomly divided into several groups according to weight, randomly select 1 group and are set as Normal group, just
It often feeds, every morning distilled water（10mL·kg-1）Gavage；Remaining animal is used to modeling, gavage fat emulsion（10mL·
kg-1）, continuous five weeks, freely absorb conventional feed during gavage, fasting 12h after last gavage（It can't help water）, mouse orbit is quiet
Arteries and veins takes blood, detaches serum, modeling animal equilibrium is divided into 15 groups by serum triglyceride level using randomized blocks, respectively
For：Model group, positive controls（Simvastatin group）, test group（The corresponding compound of the embodiment of the present invention）.
3rd, the administration of different grouping
Each group continues in every morning distilled water（Normal group）Or fat emulsion（Model group, positive controls and test group）
Gavage, dosage 10mLkg-1；Afternoon, each group gave agents, successive administration 3 weeks respectively.
Normal group：10mL·kg-1Distilled water；
Model group：10mL·kg-1Distilled water；
Positive controls：Simvastatin group 1mgkg-1；
Test group：The corresponding compound 1mgkg of the embodiment of the present invention-1。
4th, blood and Indexs measure are taken
Fasting 12h after the last administration（It can't help water）, mouse orbit venous blood sampling, 20~30min of standing, centrifugation 20 minutes or so
（2000~3000 revs/min）, serum is taken, HMG-CoA reductase activity is measured according to corresponding reagent box specification, according to mutually taking an entrance examination
Agent box specification measures T-CHOL（TC）, triglycerides（TG）And high-density lipoprotein（HDL-C）.
Measurement result see the table below：
Note：Compared with model group,▲P<0.05
The above results show the compounds of this invention test group HMG-CoA reductase activity, T-CHOL compared with model group（TC）、
Triglycerides（TG）And high-density lipoprotein（HDL-C）The significant difference of content（P<0.05）, illustrate the compounds of this invention
Test group can reduce HMG-CoA reductase activity, reduce TC, TG level, raising HDL-C is horizontal, has the pharmacology of reducing blood lipid
Activity can be used as HMG-CoA reductase inhibitor class drug, and more deep exploration, exploitation are carried out in reducing blood lipid field.
The above is only the preferred embodiment of the present invention, it is noted that those of ordinary skill in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
The content that the present invention is covered.
Claims (4)
1. a kind of (2- hexahydrotoluene -1- bases) imido base class compound, which is characterized in that its structural formula is as follows：
。
2. compound as described in claim 1 answering in disease prevention and/or treatment as HMG-CoA reductase inhibitor
With.
3. application of the compound as described in claim 1 in prevention and/or treatment hyperlipidemia is prepared.
Contain 4. compound as described in claim 1 reduces T-CHOL, triglycerides and improve high-density lipoprotein in preparation
Measure the application in drug.
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Application publication date: 20180615 |