WO2007131446A1 - Acide bêta-phényl-alpha-hydroxy propanoïque substitué, procédé de synthèse et son utilisation - Google Patents

Acide bêta-phényl-alpha-hydroxy propanoïque substitué, procédé de synthèse et son utilisation Download PDF

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WO2007131446A1
WO2007131446A1 PCT/CN2007/001550 CN2007001550W WO2007131446A1 WO 2007131446 A1 WO2007131446 A1 WO 2007131446A1 CN 2007001550 W CN2007001550 W CN 2007001550W WO 2007131446 A1 WO2007131446 A1 WO 2007131446A1
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group
compound
formula
compound according
synthesis
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PCT/CN2007/001550
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English (en)
French (fr)
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Xiaohui Zheng
Qunsheng Zhang
Shixiang Wang
Xinfeng Zhao
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Northwest University
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Priority to DK07721123.3T priority Critical patent/DK2019090T3/da
Application filed by Northwest University filed Critical Northwest University
Priority to NZ572958A priority patent/NZ572958A/en
Priority to BRPI0712101A priority patent/BRPI0712101B8/pt
Priority to PL07721123T priority patent/PL2019090T3/pl
Priority to JP2009510260A priority patent/JP5094845B2/ja
Priority to EP07721123A priority patent/EP2019090B1/en
Priority to US12/301,069 priority patent/US8017786B2/en
Priority to SI200731105T priority patent/SI2019090T1/sl
Priority to KR1020087030201A priority patent/KR101059639B1/ko
Priority to AU2007250364A priority patent/AU2007250364B8/en
Priority to CA2652299A priority patent/CA2652299C/en
Publication of WO2007131446A1 publication Critical patent/WO2007131446A1/zh
Priority to IL195313A priority patent/IL195313A/en

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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/73Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
    • C07C69/732Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids of unsaturated hydroxy carboxylic acids
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    • C07C235/32Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings
    • C07C235/34Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
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    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
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    • C07D317/44Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/50Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
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    • C07D405/12Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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    • C07D407/12Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
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    • C07C2602/42Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms

Definitions

  • the present invention relates to a substituted ?-phenyl-'-hydroxypropionic acid derivative, a synthetic method thereof and use thereof for the preparation of a medicament for preventing and treating cardiovascular and cerebrovascular diseases.
  • Salvia miltiorrhiza is a traditional Chinese medicine for the treatment of cardiovascular and cerebrovascular diseases. It is generally believed that Danshensu (the chemical name is: ?-(3,4-dihydroxyphenyl)- «-hydroxypropionic acid) is a water-soluble group of Salvia miltiorrhiza. The main active ingredient of the fraction, pharmacological tests showed that the phenyl---hydroxypropyl danshenin drug ⁇ ⁇ group, but its efficacy is not significant. Therefore, the structure of the substituted ?-phenyl- «-hydroxypropionic acid may be modified, and the modified derivative may have or have a greater potency than the prototype compound, and may improve its efficacy in preventing and treating cardiovascular and cerebrovascular diseases. For example, water tablets can pass through the heart-brain barrier, while danshensu is not easy to pass through the heart-brain barrier. Therefore, in the structure of Danshensu, the chemical structure of borneol is added to structurally transform Danshensu.
  • the object of the present invention is to provide a substituted /?-phenyl-"-hydroxypropionic acid derivative and a synthetic method thereof, and a substituted ?-phenylhydroxypropionic acid derivative for the preparation of a medicament for preventing and treating cardiovascular and cerebrovascular diseases. ⁇ Use of the object.
  • a substituted ff-phenyl- «, hydroxypropionic acid derivative in particular a compound represented by the general formula (I):
  • R 2 and R 3 are independently selected from the group consisting of H, OH, F Cl, Br, and methoxy And B or alternatively, R 2 together form -OCH 2 0-, R 3 is selected from the group consisting of H, OH, ⁇ #L ⁇ , B and halogen;
  • R 5 is selected from a cycloalkoxy group and a substituted amino group, and in the case where R 5 is an amino group, Ri, R 2 and R 3 are not all H.
  • 3 ⁇ 4 is OH.
  • R4 is an aroyloxy group or a heterocyclic substituted acyloxy group.
  • 3 ⁇ 4 is o-acetoxybenzoyloxy, 3-pyridinebenzoyloxy or 4-pyridinebenzoyloxy.
  • R 5 is:
  • R 2 is OH, respectively.
  • R 2 together form -OCH 2 0-.
  • Ri and R 2 are respectively OH
  • R 2 is formed
  • the catalyst is concentrated H 2 S0 4 , silicotungstic acid, phosphomolybdic acid, p-nonyl acid, S 2 0—/Zr0 2 , aluminum trichloride, zinc chloride and/or magnesium chloride.
  • the catalyst is p-toluenesulfonic acid, S 2 0-/Zr0 2 , aluminum trichloride and/or zinc chloride. It is especially advantageous to use p-toluenesulfonic acid and/or S 2 0 ⁇ -/Zr0 2 .
  • the reaction molar ratio of the compound of the formula (m) to the compound of the formula (IV) is 1: 0.8-1: 1.5, preferably 1: 1 to 1: 1.5, more preferably 1: 1.25-1: 1.5, most preferably 1: 1.5.
  • the reaction molar ratio of the compound of the formula (V) to the compound of the formula (VI) is 1: 0.8-1: 1.5, preferably 1: 1 to 1: 1.5, more preferably 1: 1.25-1: 1.5, most preferably 1: 1.5.
  • the reaction is carried out in a solvent.
  • the solvent used is selected from the group consisting of ethyl acetate, dichloromethane, tetrahydrofuran, acetone, toluene, 1,4-dioxane and ⁇ yv-dimethylformamide.
  • the solvent used is selected from the group consisting of tetrahydrofuran, acetone, toluene, 1,4-dioxane, Ay-dimethylformamide.
  • the solvent used is selected from the group consisting of tetrahydrofuran and acetone.
  • the use of tetrahydrofuran as a solvent is most preferred.
  • the solvents may be used singly or in combination.
  • the reaction temperature varies depending on the solvent selected, and it is advantageous to control from 0 ° C to 150 ° C.
  • the reaction temperature is from 25 ° C to 100 ° C. More preferably, the reaction temperature is 65 °C.
  • the reaction time can be 21! ⁇ 24h, preferably 5h ⁇ 15h, more preferably 8h ⁇ 12h, most preferably 8h.
  • the synthesis of a compound of formula (II) comprises: reacting ?-(3,4-dihydroxyphenyl)hydroxypropionic acid with borneol in the presence of a catalyst.
  • the catalyst is a Lewis acid catalyst, such as methylbenzene sulfonic acid,
  • the reaction is carried out in a solvent, and the solvent is selected from tetrahydrofuran, toluene, 1,4-dioxane or Ayv-dimethylformamide, preferably tetrahydrofuran.
  • the degree of reactivity varies depending on the solvent used, and is usually controlled at 65. C ⁇ 150 ° C, preferably controlled at 65. C.
  • the reaction time is from 8 h to 12 h, preferably 8 h.
  • s 2 o [- /Zr0 2 can be optionally prepared by the following method: adding ammonia water to the ZrOCl 2 solution at 0 to 10 ° C Medium, to pH 9-12, aged, washed and precipitated to no Cr, dried, ground, placed in (NH 4 ) 2 S 2 0 8 solution, soaked, filtered, dried, ground, at 500 ⁇ 700. C roasting 2-5h prepared ⁇ s 2 o _ / Zr0 2. ⁇
  • a compound of the invention for the manufacture of a medicament for the prophylaxis and treatment of cardiovascular and cerebrovascular diseases, in particular, ?-(3,4-dihydroxyphenyl)-hydroxypropionic acid borneol Esters (compounds of formula II) are useful in the preparation of medicaments for the prevention and treatment of cardiovascular and cerebrovascular diseases.
  • FIG. 1 is a view showing the synthesis route of a compound of the formula (II) in Example 1, i.e., ?-(3,4-dihydroxyphenyl)-hydroxypropionic acid borneol.
  • Figure 2 shows the mass spectrum of the final product obtained in Example 1.
  • Fig. 3 shows an infrared spectrum of the final product obtained in Example 1.
  • Fig. 4 shows the ?NMR spectrum of the final product obtained in Example 1.
  • Figure 5 shows the 13 C NMR spectrum of the final product obtained in Example 1.
  • the preparation method of the catalyst S 2 0 8 2 7Zr0 2 is as follows: 0.025 mol of ZrOCl 2 -8H 2 0 is prepared into a 1 mol.I/ 1 ZrOCl 2 solution, stirred in a water bath, and slowly dropped into 6 moH / 1 Ammonia water, until the pH was 10, aged for 12 h, suction filtered, and the precipitate was washed with distilled water until no CT (tested with 0.1 mol'l AgNOs).
  • the precipitate was baked at 110 ° C for 10 h, finely ground, and then 0.5
  • the solution was immersed for 12 h, suction filtered, dried, ground, and fired at 600 ° C for 3 h in a muffle furnace to obtain S 2 0 8 2 7Zr0 2 .
  • Figure 2 is a mass spectrum of the obtained pale yellow oil. It can be seen that 351.7 is
  • iHNMlU CD3COCD3, 500MHz ⁇ 6.57-7.64(m, 3H, Ar-H), 4.10-4.32(m, lH, -CH(OH)-), 4.83(t, 1H, -CH- ), 2.79-2.92 (m, 2H, -CH 2 -);
  • Example 2 Synthesis of ?-(3,4-dihydroxyphenyl)-hydroxypropionic acid hydroflavonate The other two steps were the same as in Example 1, except that 0.12 mol of ⁇ -(3,4-di) was added to the three-necked flask. Hydroxyphenyl)- ⁇ -hydroxypropionic acid and 0.15 mol of borneol, then 0.86 g of p-toluenesulfonic acid catalyst, 500 mL of tetrahydrofuran, and reacted at 65 ° C for 12 h.
  • Example 3 Synthesis of ?-(3,4-dihydroxyphenyl)--hydroxypropionic acid borneol ester Three additional steps were the same as in Example 1, except that 0.1 mol of ⁇ -(3,4-dihydroxyl was added to a three-necked flask Phenyl) hydroxypropionic acid and 0.12 mol of borneol, then 1.33 g of catalyst 8 2 0 / ⁇ 1:0 2 , 1,4-dioxane 400 ml were added and reacted at 100 ° C for 8 h. After the completion of the reaction, the catalyst S 2 0 ⁇ -/Zr0 2 was removed by suction filtration, and then the solvent was distilled off under reduced pressure.
  • the obtained viscous material was removed from the borneol by an oil pump (1.3 ⁇ l (T 3 Pa )) in a boiling water bath to obtain a black-brown viscosity.
  • the viscous material was separated into a pale yellow oil.
  • the mass spectrum and the infrared spectrum of the obtained product were the same as in Example 1.
  • Example 4 -(3,4-dihydroxyphenyl; synthesis of Hz-hydroxypropionic acid hydroflavonate four other steps are the same as in Example 1, except that 0.06 mol ?-(3,4-dihydroxyl) is added to the three-necked vial Phenyl group: hydroxypropionic acid and 0.09 mol of water, then 0.60 g of a catalyst aluminum trichloride, 200 ml of a solvent A V-dimethyl phthalamide, and reacted at 150 ° C for 10 h. After the reaction, the solvent was distilled off under reduced pressure.
  • the obtained viscous material was taken out in a boiling water bath by an oil pump (1.3 ⁇ l (T 3 Pa ) to obtain a black ochre substance, and then separated by a column color to obtain a pale yellow oil.
  • Mass spectrum of the obtained product and infrared light pan The same as in the first embodiment.
  • Example 5 Synthesis of ?-(4-chlorophenyl)- «-hydroxypropionic acid hydroflavonate (1) Synthesis of 2-mercapto-4-(4-chlorobenzylidene)oxazolone similar to Example 1 (2) except that 4-chlorophenylhydrazine was used instead of 3,4-dihydroxybenzaldehyde. Brownish yellow crystals, yield 87.4%.
  • Steps (1) to (4) are equivalent to Examples 7 (1) to (4).
  • Steps (1) to (4) are equivalent to Examples 7 (1) to (4).
  • Steps (1) to (4) are equivalent to those of Examples 7 (1) to (4).
  • mice 60 SD rats, weighing 220 ⁇ 20g. Randomly divided into normal control group, model control group, Danshensu injection group (ip lmL/kg) and yff-(3,4-dihydroxyphenyl)-ct-hydroxypropionic acid hydroflavonate small, medium and large doses Group (ip 5, 15, 35 mg/kg).
  • Normal control group and model control group ip equal volume of normal saline. Animals were intraperitoneally injected with 1% pentobarbital sodium 40 mg/kg anesthesia, supine position, fixed head, midline incision skin, tracheal intubation, spontaneous breathing. The right common carotid vein and the common carotid artery were separated and threaded for use.
  • the threading speed should be slowed down, and the blood flow of the brain microcirculation displayed by the laser Doppler microcirculation blood flow analyzer should be observed at the same time.
  • the middle cerebral artery is worn, There may be a sudden drop in the microcirculation perfusion flow, and after the microcirculation blood flow drops, the inner diameter is penetrated by about 1 mm, and then the distal end of the incision and the wire in the artery are firmly ligated to remove the excess thread.
  • the J 12200 laser Doppler microcirculation blood flow probe was fixed at the cranial window, and the probe was maintained without displacement and rotation during the whole experiment. Recording before and after ligation in the area 5, 15 The microcirculation blood flow at 30, 45, and 60 min was the same for the medication group.
  • the average microcirculation perfusion flow within the observation time lmin is the microcirculation perfusion flow of the observation time.
  • the tracheal intubation was performed, and the ventilation frequency was 60 times/ Min, open the chest, with 6/0 line, a sputum from the root of the anterior descending coronary artery lmm ⁇ 2mm, through a plastic tube, tighten the sputum, observe the ECG changes, ST elevation or decrease are successful ligation
  • the color of the myocardial tissue below the ligature is darkened.
  • the plastic tube was pulled out, the coronary blood flow was recanalized, and the local tissue was congested.
  • the myocardial infarct size was recorded before the experiment, ischemia lmin and 30 min, and reperfusion for 30 min.
  • the heart tissue was taken and fixed with 10% formalin. , paraffin-embedded, 4 ⁇ thick serial sections, respectively, immunohistochemical detection; sham operation group only threaded, but did not ligature coronary artery.
  • myocardial tissue is divided into: blue is normal myocardium, light red is ischemic myocardium, grayish white is necrotic myocardium.
  • Infarct myocardium was calculated by computer image analysis software Percentage of area (nec/aar) of the myocardium in the risk zone (ie, ischemic myocardium, including ischemic infarction and ischemic infarcted myocardium, aar) and percentage of infarcted myocardium (nec/lv) to the extent of infarction At the same time, the percentage of left ventricular area (aar/lv) in the dangerous area was calculated.
  • Bax anti-rabbit polyclonal antibody (Santa C zBio. Inc.), dilution 1:200; Bcl22: anti-rabbit polyclonal antibody (TBD Tianjin Biotechnology Center), dilution 1100; caspase-3: anti-rabbit Cloning antibody (Normarkers Fromont, CA), diluted; i at 1:200; MMP-2: anti-mouse monoclonal antibody (Normarkers Fromont, CA), dilution 1:200; PPARy: anti-sheep polyclonal antibody (Santa Cruz Bio. Inc.
  • the specific steps are as described in the ABC and SP kit instructions, DAB color development, neutral resin sealing.
  • the primary antibody was replaced with PBS as a negative control.
  • the cells with positive expression were brown-yellow, MMP-2 protein was in the cytoplasm, Bcl-2 was expressed in the nuclear membrane and cytoplasm, Bax was mainly in the cytoplasm, part was expressed in the nucleus, caspase-3 was the main To be expressed in the nucleus, part is expressed in the cytosol.
  • the CIAAS image analysis system was used to perform random selection and automatic point analysis on the sections, and the average optical density values or integrated optical densities of the obtained myocardial tissue sections were statistically processed.
  • Table 3 shows the effects of Bax, Bcl-2, caspase-3, MMP-2, and PPARy protein expression ("10)
  • Danshensu group lmL/kg 0.08 ⁇ 0.02 A 0.18 ⁇ 0.04 0.21 ⁇ 0.12** 0.12 ⁇ 0.05 0.34 ⁇ 0.08 AA test group 5 mg/kg 0.12 ⁇ 0.03 0.15 ⁇ 0.03 0.35 ⁇ 0.14 0.14 ⁇ 0.05 0.16 ⁇ 0.
  • MMP-2 is involved in myocardial I/R injury and is achieved by cleavage of troponin I, whereas cleavage of muscle 4 protein I directly leads to apoptosis.
  • Specific MMP-2 inhibitors can improve myocardial I/R cardiac function in rats. What results show? Reduction of ⁇ -2 protein by the action of monos(3,4-dihydroxyphenyl)- ⁇ -hydroxypropionic acid hydroflavonate, which may be ff-(3,4-dihydroxyphenyl)- ⁇ -hydroxypropionic acid Another mechanism by which borneol esters are resistant to myocardial I/R injury. 3.
  • Rats were anesthetized by intraperitoneal injection of 20% urethane 5mL/kg, fixed; cut the neck skin of rats, separate the anterior cervical muscles, expose the trachea, insert Endotracheal intubation; separation of the common carotid artery, insertion into the left ventricle through the common carotid artery through the cardiac catheter, through the RM-6000 multi-channel physiological recorder pressure transducer (T-200) and RM-6000 multi-channel physiological recorder : Large (AP-601G) measures the left chamber pressure, and then inputs the left chamber pressure signal to the RM-6000 multi-channel physiological recorder differential amplifier (ED-601G) to record the left chamber pressure rise or fall maximum rate p/dt max - Dp/dt max ); The right femoral artery was isolated, the arterial blood pressure was measured by cannulation; the ECG recording electrode was connected, and the standard ECG was
  • the catheter was duodenal and the observations were recorded at 5, 15, 30, 60, 90, and 120 minutes after the drug.
  • the rate of change was calculated by the following formula, and statistical analysis of the comparison between groups was performed with the rate of change.
  • Rate of change (%) xlOO
  • Danshensu hydrolone ester 18mg/kg group can significantly reduce the mean arterial pressure, systolic blood pressure and diastolic blood pressure of anesthetized rats after administration. Compared with the blank control group, there are significant differences at 15, 60, 90, 120 minutes. (P ⁇ 0.05 or P ⁇ 0.01); Danshensu borneol The ester 9mg/kg group reduced the mean arterial pressure, systolic blood pressure and diastolic blood pressure in anesthetized rats.
  • the Danshensu hydrolone ester 18mg/kg group can significantly reduce the left ventricular pressure of rats after administration. Compared with the blank control group, there is a significant difference at 15, 30, 60, 90, 120 minutes (PO.05). Or P ⁇ 0.01); Danshensu hydrol ester 9mg/kg group, the left ventricular pressure tendency of drunk rats after administration, compared with the blank control group, there was a significant difference at 60 minutes (PO.05 or P ⁇ 0.01); Danshensu hydroslip ester 4.5mg/kg group had no significant effect on left ventricular pressure of anesthetized rats after administration, no significant difference compared with blank control group; verapamil hydrochloride group, administered After the treatment, the left internal pressure of the anesthetized rats was significantly reduced, which was significantly different from the blank control group (PO.01) (Table 8).
  • Danshensu borneol ester 18mg/kg group can significantly reduce dp/dt after administration, compared with the blank control group, there is significant difference at 15, 30, 60, 90, 120 minutes (P ⁇ 0.05 or P ⁇ 0.01); Danshensu borneol ester 9mg/kg group, after administration, decreased the trend of dp/dt in anesthetized rats, compared with the blank control group, there was significant difference at 60 and 120 minutes (P ⁇ 0.05 or PO.
  • Danshensu hydrolone ester 9mg/kg and 18mg/kg group had a trend of -dp/dt in drunken rats after administration, compared with the blank control group, there was a significant difference at 60 and 120 minutes (P ⁇ 0.05). Or P ⁇ 0.01); Danshensu borneol 4.5mg/kg group had no significant effect on -dp/dt of anesthetized rats after administration, and there was no significant difference compared with the blank control group; verapamil hydrochloride group, Significantly reduce the anesthetized rats after administration -dp/dt, there was a significant difference compared with the blank control group ( ⁇ 0 ⁇ 01). (Tables 9, 10).
  • the rats were anesthetized with ether, fixed on the back, and normal electrocardiograms were recorded (before modeling). Under sterile conditions, the left chest is lifted, the muscles are bluntly separated in the fourth intercostal space, the right chest is gently squeezed out of the heart, between the pulmonary artery cone and the left atrial appendage, and the coronary artery is ligated 2 to 3 mm from the origin of the left coronary artery. The left anterior descending artery is then immediately returned to the chest and the wound is sutured. Topical application of penicillin to prevent infection. Immediately after the operation, the electrocardiogram after ischemia (Omin after modeling) was recorded, and the height of the ST-T segment was measured.
  • Omin after modeling the electrocardiogram after ischemia
  • Rate of change (%) 140.08 ⁇ 161.56 22.34 ⁇ 21.51**
  • Model control group 1 10 0.20 ⁇ 0.09 0.19 ⁇ 0.41 0.23 ⁇ 0.10

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Description

取代 -苯基- " -羟基丙酸衍生物、 其合成方法及其用途 技术领域
本发明涉及一种取代 ?-苯基- « -羟基丙酸衍生物, 其合成方 法及其用于制备防治心脑血管疾病的药物的用途。
背景技术
丹参是一种疗效明确的治疗心脑血管疾病的中药,目前普遍 认为丹参素(其化学名称为: ?-(3,4-二羟基苯基) -« -羟基丙酸) 是丹参水溶性組分的主要活性成分, 药理试验表明, 苯基- « - 羟基丙 丹参素的药^ ^团, 但其疗效不显著。 因此, 对取代 ?-苯基- «-羟基丙酸的结构进行改造,改造后的衍生物可能具有或 大于原型化合物的药效,并有可能提高其在防治心脑血管疾病方 面的疗效。 例如, 水片可以通过心脑屏障, 而丹参素不易通过心 脑屏障, 因此在丹参素的结构中,增加冰片的化学结构对丹参素 进行结构改造。
发明内容
本发明的目的在于提供一种取代 /?-苯基- « -羟基丙酸衍生物 及其合成方法, 以及将取代 ?-苯基 羟基丙酸衍生物用于制备 预防和治疗心脑血管疾病的^物的用途。
在本发明的第一方面, 提供了一种取代) ff-苯基- «,羟基丙酸 衍生物, 具体而言是由通式(I )表示的化合物:
Figure imgf000003_0001
( I )
其中, 、 R2、 R3相互独立地选自 H、 OH、 F Cl、 Br、 甲氧 基和乙 或作为替代地, 、 R2—起形成 -OCH20-, R3选 自 H、 OH、 曱 #L^、 乙 和卤素;
为 OH或酰 fU^;
R5选自环烷氧基、 和取代氨基,并且在 R5是氨基的情况下, Ri, R2、 R3不全为 H。
在本发明的一个实施方案中, ¾为 OH。
在本发明的另一实施方案中, R4为芳酰氧基或杂环取代酰 氧基。优选地, ¾为邻乙酰氧基苯甲酰氧基、 3-吡啶苯甲酰氧基 或 4-吡啶苯甲酰氧基。
在本发明的一个实施方案中, R5为:
Figure imgf000004_0001
在本发明的一个实施方案中, 、 R2分别为 OH。
在本发明的另一实施方案中, ¾、 R2—起形成 -OCH20-。 在本发明的一个优选实施方案中, 在 Ri、 R2分别为 OH的
式(II )所示
Figure imgf000004_0002
在本发明的另一优选实施方案中, 在 、 R2—起形成
■OCH20-的情况下,
Figure imgf000005_0001
方 案 , R3=H ,
Figure imgf000005_0002
, 或者作为另一替代方
案 R3=H, R4=OH,
Figure imgf000005_0003
在本发明的第二方面, 提供了通式(I) 的化合物的合成方 法, 所述方法包^使通式(III)的化合物与通式(IV) 的化合 物或其水合物在催化剂存在下反应:
Figure imgf000005_0004
(III) (IV) 其中 、 R2、 R3、 和 R5的意义同通式(I) 中所述; 或者, 所述方法包括使通式(V)的化合物与通式(VI)的化合 物或其水合物在催化剂存在下反应:
Figure imgf000006_0001
(V) (VI)
其中 ¾、 R2、 R3和 R5的意义同通式(I)中所述, '为酰氧基。
所述的催化剂为浓 H2S04、硅钨酸、磷鉬酸、对曱基^ ^酸、 S20〖- /Zr02、 三氯化铝、 氯化锌和 /或氯化镁。 优选地, 所述的催 化剂为对甲基苯磺酸、 S20-/Zr02、 三氯化铝和 /或氯化锌。 使用 对甲基苯磺酸和 /或 S20〖- /Zr02是尤其有利的。
通式(m)的化合物与通式(IV)的化合物的反应摩尔比 为 1: 0.8-1: 1.5, 优选 1: 1〜1: 1.5, 更优选 1: 1.25-1: 1.5, 最优选为 1: 1.5。
通式(V)的化合物与通式(VI)的化合物的反应摩尔比为 1: 0.8-1: 1.5, 优选 1: 1〜1: 1.5, 更优选 1: 1.25-1: 1.5, 最 优选为 1: 1.5。
任选地,所述反应在溶剂中进行。所用的溶剂选自乙酸乙酯、 二氯甲烷、 四氢呋喃、 丙酮、 甲苯、 1,4-二氧六环和 \yv-二甲基 甲酰胺。 优选地, 所用的溶剂选自四氢呋喃、 丙酮、 甲苯、 1,4- 二氧六环、 Ay-二甲基甲酰胺。 更优选地, 所用的溶剂选自四氢 呋喃和丙酮。使用四氢呋喃作为溶剂是最优选的。所述溶剂可以 单独或组合使用。
反应温度根据所选择溶剂的不同而变化,控制在 0°C〜150°C 是有利的。 优选地, 反应温度为 25°C ~100°C。 更优选地, 反应 温度为 65°C。
反应时间可以是 21!〜 24h, 优选 5h~15h, 更优选 8h~12h, 最优选 8h。
在本发明的一个具体实施方案中, 式(II)的化合物的合成 方法包括: 使 ?-(3,4-二羟基苯基) 羟基丙酸与冰片在催化剂存 在下反应。其中所述的催化剂为路易斯酸催化剂,如甲基苯磺酸、
S20〖- /Zr02、 三氯化铝和 /或氯化锌, 更具体地为 S20〖- /Zr02。 其中 所述的 ^(3,4-二羟基苯基) -« -羟基丙酸与水片的反应摩尔比为 1: 1〜1: 1.5, 优选为 1: 1.25-1: 1.5, 更优选为 1: 1.5。 所述反 应在溶剂中进行, 且溶剂选自四氢呋喃、 甲苯、 1,4-二氧六环或 Ayv—二甲基甲酰胺,优选为四氢呋喃。反应 度才艮据所用溶剂的 不同而变化, 通常控制在 65。C〜150°C , 优选控制在 65。C。 反应 时间为 8h〜12h, 优选为 8h。
在使用 s2o8 2- /∑^2作为催化剂的情况下, 任选地可以通过以 下方法制备 s2o〖- /Zr02 : 在 0 ~ 10°C下, 将氨水加至 ZrOCl2溶液 中, 至 pH值 9-12, 陈化, 洗涤沉淀至无 Cr, 烘干、 研磨后置 于 (NH4)2S208溶液中浸泡, 过滤、 干燥、 研磨, 于 500 ~ 700。C 培烧 2-5h制得 s2o〖_ /Zr02。 ―
在本发明的第三方面,提供了本发明的化合物用于制备预防 和治疗心脑血管疾病的药物的用途, 尤其是将 ?-(3,4-二羟基苯 基) - -羟基丙酸冰片酯(式 II的化合物 )用于制备预防和治疗心 脑血管疾病的药物。
附图说明
图 1表示实施例 1 中式(II ) 的化合物即 ?-(3,4-二羟基苯 基) - -羟基丙酸冰片酯的合成路线图。
图 2表示实施例 1中所得最后产物的质谱图。
图 3表示实施例 1中所得最后产物的红外光谱图。
图 4表示实施例 1中所得最后产物的 ^NMR谱图。
图 5表示实施例 1中所得最后产物的 13CNMR谱图。
具体实施方式
以下结合合成实例及药效学试验,对本发明作进一步的详细 说明。应该理解, 以下实施例仅仅用于描述本发明, 而不是限制 本发明。 实施例 1: ?-(3,4-二羟基苯基: )- 羟基丙酸水片酯的合成一
( 1 ) 乙酰甘氨酸的合成
在 250mL三口瓶中加入 0.33mol甘氨酸和 lOOmL蒸馏水, 剧 烈搅拌至溶解, 搅拌下緩慢滴加 0.67mol醋酸酐, 继续剧烈搅拌 50min。 抽滤、 洗涤、 干燥, 得白色晶体, 收率 86.0%。
( 2 ) 2-甲基 -4-(3,4-二乙酰氧基苄叉基) 0恶唑酮的合成 取 3,4-二羟基苯甲醛 0.20mol、 乙酰甘氨酸 0.24mol和无水醋 酸钠 0.26mol于 250mL三口瓶中, 加入醋酸酐 189mL, 搅拌混匀, 在 80°C水浴中搅拌反应 4h, 然后升温至 100。C继续搅拌反应 lh, 冷却至室温后将其放入冰箱中冷却。 向其中加入 lOOmL水并搅 拌, 底部有黄色晶体析出, 抽滤、 洗涤、 干燥, 得黄色晶体, 收 率 75.0%。
( 3 ) ff-(3,4-二乙酰氧基苯基) -α-乙酰■#基丙烯酸的合成 在烧瓶中加入 0.15mol 2-甲基 -4-(3,4-二乙酰氧基苄叉基)口恶 唑酮、 166mL丙酮和 166mL蒸馏水,緩慢加热至沸,加热回流 3h。 活性炭脱色, 滤液放置结晶。 抽滤、 洗涤、 干燥, 得米黄色结晶 性粉末, 收率 72.9%。
( 4 ) ?-(3,4-二羟基苯基)丙酮酸的合成
取 0.25mol β-(3,4-二乙酰氧基苯基) 乙酰氣基丙烯酸,加入 1 mol.L-1盐酸 1500mL, 搅拌下加热回流 8h。 活性炭脱色, 抽滤, 滤液浓缩至有晶体析出。抽滤、洗涤、干燥,得白色疏松状晶体, 收率 48.1%。
( 5 ) 9-(3,4-二羟基苯基) -«-羟基丙酸的合成
取 0.17mol ?-(3,4-二羟基苯基)丙酮酸, 加入 112g锌汞齐和 1808mL 1.4 mol'L-1盐酸溶液, 加热回流反应 8h。 过滤后, 滤液 用乙酸乙酯反复萃取, 并用无水 Na2S04干燥, 除去乙酸乙酯, 得 ?-(3,4-二羟基苯基) 羟基丙酸。 收率 40.3%。 、
( 6 ) /?-(3,4-二羟基苯基; Hz-羟基丙酸冰片酯的合成 在三口瓶中加入 0.12mol -(3,4-二羟基苯基) -ct-羟基丙酸和 0.18mol冰片 , 然后加入催化剂对甲基^ ^酸 0.86g或自制催化 剂 S208 27Zr02 2.00g, 并加入四氢呋喃 500 mL, 65。C下反应 8h。 反应结束后除去催化剂、 溶剂和未反应的冰片, 得棕色粘稠物, 柱色谱分离得淡黄色油状物。
催化剂 S208 27Zr02 的制备方法如下: 取 0.025mol ZrOCl2-8H20配制成 1 mol.I/1的 ZrOCl2溶液,在水水浴中搅拌, 慢慢滴入 6 moH/1的氨水, 直至 pH值至 10, 陈化 12h, 抽滤, 用蒸镏水洗涤沉淀至无 CT为止(用 0.1 mol'l AgNOs检验)。将 沉淀在 110°C下烘 I0h, 研细, 然后用 0.5
Figure imgf000009_0001
溶 液浸泡 12h, 抽滤, 干燥, 研细, 在马弗炉中 600 °C下培烧 3h 即制得 S208 27Zr02
( 7 )所得淡黄色油状物的质谱、 红外光谱、 ΧΗΝΜΚ谱、 13CNMR镨
图 2 为所得淡黄色油状物的质谱图, 可以看出 351.7是
( M+H20 ) 的分子离子峰, 它的分子量为 333.69;
如图 3所示, IR(KBr) v/c 1: 3363.61(OH), 2953.12(CH3), 2913.90(CH2), 1725.51(00), 1608.20、 1521.53、 1450.32(苯环 骨架), 1281.36(酯的 C=0) , 1114.39(仲羟基 C-O) , 885.71 和 805.68(1,2,4-苯环三取代 );
如图 4所示, iHNMlU CD3COCD3, 500MHz )δ 6.57-7.64(m, 3H, Ar-H) , 4.10-4.32(m,lH,-CH ( OH ) -), 4.83(t, 1H, -CH-), 2.79-2.92(m, 2H, -CH2-);
如图 5所示, 13CNMR( CDCI3 , 500MHz )δ: 174.790, 143.807, 143.056, 128.557, 121.549, 116.895, 115.488, 81.983, 71.646, 48.860, 47.881 , 44.798, 39.871 , 36.506, 27.918, 27.057, 19.653, 18.774, 13.501
上述表征证明合成得到了 ?-(3,4-二羟基笨基) -« -羟基丙酸冰 片酯。 实施例 2: ?-(3,4-二羟基苯基) - -羟基丙酸水片酯的合成二 其它步骤同实施例 1, 除了在三口瓶中加入 0.12mol β-(3,4- 二羟基苯基) -α-羟基丙酸和 0.15mol冰片, 然后加入催化剂对甲 基苯磺酸 0.86g, 四氢呋喃 500mL, 65°C下反应 12h。 反应结束 后减压蒸馏除去反应溶剂, 所得粘稠状物质在沸水浴下由油泵 ( 1.3xl(T3Pa )抽除冰片, 然后加入 200mL乙酸乙酯, 所得溶液 用饱和 NaHC03洗涤以除去未反应的 )ff-(3,4-二羟基苯基) - -羟基 丙酸和对甲基苯磺酸,减压浓缩所得乙酸乙酯层,得棕色粘稠物, 柱色谱分离得淡黄色油状物。所得产物的质谱与红外光谱与实施 例 1相同。
实施例 3: ?-(3,4-二羟基苯基) - -羟基丙酸冰片酯的合成三 其它步驟同实施例 1, 除了在三口瓶中加入 0.1 mol β-(3,4- 二羟基苯基) 羟基丙酸和 0.12 mol冰片, 然后加入 1.33g催化 剂820 /∑1:02 , 1,4-二氧六环 400ml, 于 100°C下反应 8h。 反应结 束后抽滤除去催化剂 S20〖- /Zr02, 然后减压蒸馏除去溶剂, 所得 粘稠状物质在沸水浴下由油泵(1.3xl(T3Pa )抽除冰片, 得黑棕 色粘稠物,柱色讲分离得淡黄色油状物。所得产物的质谱与红外 光谱与实施例 1相同。
实施例 4: -(3,4-二羟基苯基; Hz-羟基丙酸水片酯的合成四 其它步骤同实施例 1, 除了在三口瓶中加入 0.06mol ?-(3,4- 二羟基苯基: 羟基丙酸和 0.09mol水片, 然后加入催化剂三氯 化铝 0.60g,溶剂 A V-二甲基曱酰胺 200ml,于 150 °C下反应 10h。 反应结束后减压蒸馏除去溶剂,所得粘稠状物质在沸水浴下由油 泵(1.3xl(T3 Pa )抽除水片, 得黑椋色物质, 再经柱色傅分离得 淡黄色油状物。 所得产物的质谱与红外光潘与实施例 1相同。
实施例 5: ?-(4-氯苯基) -« -羟基丙酸水片酯的合成 ( 1 ) 2-曱基 -4-(4-氯苄叉基) ^唑酮的合成类似于实施例 1 ( 2 ), 除了使用 4-氯苯曱 替 3,4-二羟基苯甲醛,得到棕黄色 晶体, 收率 87.4%。
( 2 ) (4-氯苯基) -« -乙酰氨基丙烯酸的合成
在烧瓶中加入 O.lOmol 2-甲基 -4-(4-氯苄叉基)口恶唑酮、 llOmL丙酮、 llOmL水及 2mL浓盐酸, 緩慢加热至沸, 加热回流 3ho 活性炭脱色, 滤液放置结晶。 抽滤、 洗涤、 干燥, 得橘黄色 结晶性粉末, 收率 81.1%。
( 3 ) ?-(4-氯苯基)丙酮酸的合成
在烧瓶中加入 (4-氯苯基) 乙酰氨基丙烯酸 4.55g、 lmoI'L 1盐酸溶液 91mL和 THF 45mL, 加热回流 10h。 活性炭脱 色, 滤液放置结晶。 抽滤、 洗涤、 干燥, 得类白色晶体粉末, 收 率 77.3%。
( 4 ) ?-(4-氯苯基) - -羟基丙酸的合成
取 ^-(4-氯苯基)丙酮酸 15.00g, 加入 98.00g Zn(Hg), 219mL Z^mol'L-1的盐酸溶液和 35mL THF溶液, 加热回流 10h。 趁热抽 滤, 滤液浓缩至 80mL时放置过夜。 抽滤, 洗涤, 干燥, 沸水重 结晶, 得白色絮状晶体, 收率 64.0%。
( 5 ) ?-(4-氯苯基) - -羟基丙酸水片酯的合成
在三口瓶中加入 0.12mol ?-(4-氯苯基) -α-羟基丙酸和
0.15mol冰片, 然后加入催化剂对甲基苯磺酸 0.86g, 四氢呋喃 500mL, 65。C下反应 12h。 反应结束后減压蒸馏除去反应溶剂, 所得粘稠状物质在沸水浴下由油泵(1.3xl(T3Pa )抽除水片, 然 后加入 200mL乙酸乙酯, 所得溶液用饱和 NaHC03洗涤以除去 未反应的 氯苯基) 羟基丙酸和对甲基苯磺酸,减压浓缩有 得棕色粘稠物, 柱色谱分离得淡黄色油状物。
IR(KBr) v/cm 1: 3461.45(OH), 2981.99(CH3), 2935.46(CH2), 1731.08(C=O), 1598.03、 1492.10、 1453.90(苯环骨架), 1269.86(酯 的 C=0), 1106.22(仲羟基 C-O), 846.84(对二取代); 1HNMR(500MHz, CDC13)<5: 6.57-7.64(m, 3H, Ar-H) , 4.10-4.32(m, 1H, -CH( OH ) -), 4.83(t, 1H, -CH-), 2.79-2.92(m, 2H, -CH2-), 1.205(t, 3H, -CH3);
13CNMR(500MHz, CDC13) & 13.5, 19.5, 19.5, 23.3, 30.2, 32.5, 40.8, 45.4, 49.4, 50.6, 71.3, 82.4, 128.7, 128.7, 129.1, 129.1, 131.5, 137.5, 170.8。
实施例 6: -(3-甲 *-4-羟基苯基) -ce-羟基丙酸冰片酯的合 成
( 1 ) 2-甲基 -4-(3-甲氧基 -4-乙酰氧基苄叉基 唑酮的合成 类似于实施例 1 ( 2 ), 除了使用 3-甲氧基 -4-羟基苯甲醛代替 3,4- 二羟基苯甲醛, 得到黄色晶体, 收率 73.5%。
( 2 ) β-(3-甲氧基 -4-乙酰氧基苯基) 乙酰 ^丙烯酸的合 成类似于实施例 1 ( 3 ), 除了使用 2-甲基 -4-(3-甲氧基 -4-乙酰氧 基苄叉基) 0恶唑酮代替 2-甲基 -4-(3,4-二乙酰氧基苄文基) Ρ恶唑酮, 得到疏松状米黄色结晶性粉末, 收率 71.6%。
( 3 ) ?-(3-甲氧基 -4-羟基苯基)丙酮酸的合成类似于实施例 1 ( 4 ),除了使用 ?-(3-甲氧基 -4-乙酰氧基苯基) -« -乙酰氨基丙烯酸 代替 ?-(3,4-二乙酰氧基苯基) 乙酰氨基丙烯酸, 得到浅黄色疏 松状晶体, 收率 64.2%。
( 4 ) /?-(3-甲氧基 -4-羟基苯基) -« -羟基丙酸的合成类似于实 施例 5( 4 ),除了使用 3-甲氧基 -4-羟基苯基)丙酮酸代替^ (3,4- 二羟基苯基)丙酮酸, 得到浅椋黄色油状物或晶体, 收率 77.8%。
( 5 ) ?-(3-甲氧基 -4-羟基苯基) 羟基丙酸水片酯的合成类 似于实施例 5 ( 5 ), 除了使用 (3-甲氧基 -4-羟基苯基) 羟基丙 酸代替 ?-(3,4-二羟基苯基) 羟基丙酸, 得到淡黄色晶体, 收率 59.8%。。
IR( Br) v/cm 1: 3363.61(OH), 2953.12(CH3), 2913.90(CH2), 1725.51(C=0), 1608.20、 1521.53、 1450.32(苯环骨架), 1281·36(酯 的 00), 1114·39(仲羟基 C-O), 885.71、 805·68(1,2,4-苯环三取 代), 1237,58、 1027.61(芳基烷基醚);
1HNMR(400MHz? CD3COCD3.M: 6.679-6.869(m, 3H, Ar-H) , 4.920-4.983(m, 1Η, -CH-), 4.257-4.286(t, 1H,- CH(OH)-), 3.819(s, 3H, -OCH3) , 2.804-2.978(m, 2H, -CH2-);
13CNMR(500MHz, CD3COCD3 : 13.5, 19.5, 19.5, 23.3, 30.2, 32.5, 41.1, 45.4, 49.4, 50.6, 56.1, 71.3, 82.4, 113.1, 116.8, 121.4, 133.0, 142.9, 151.3, 170.8。
实施例 7: β-(3, 4-二氧亚甲基苯基) (3-吡啶甲酰氧基) 丙酸薄荷酯的合成
( 1 )2-甲基 -4-(3, 4-二氧亚甲基苄叉拳) 0恶唑酮的合成类似于 实施例 1 (2), 除了使用 3, 4-二氧亚甲 i苯甲醛代替 3,4-二羟基 苯甲醛, 得到黄色晶体, 收率 76.5%。
(2 )?-(3, 4-二氧亚甲基苯基) 乙酰氨基丙烯酸的合成类似 于实施例 1 (3), 除了使用 2-甲基 -4-(3, 4-二氧亚甲基苄叉基)口恶 唑酮代替 2-甲基 -4-(3,4-二乙酰氧基苄叉基 )0恶唑酮, 得到疏松状 米黄色结晶性粉末, 收率 78.7%。
(3) β-(3, 4-二氧亚甲基苯基)丙酮酸的合成类似于实施例 1 ( 4 ), 除了使用 ?-(3, 4-二氧亚曱基苯基) - -乙酰氨基丙烯酸代替 ?-(3, 4-二氧亚甲基苯基) 乙酰 ^丙烯酸, 得到浅黄色疏松状 晶体, 收率 65.4%。
( 4 )?-(3, 4-二氧亚甲基苯基) 羟基丙酸的合成类似于实施 例 5 (4), 除了使用 ?-(35 4-二氧亚甲基苯基)丙酮酸代替/ ?-(3,4- 二羟基苯基)丙酮酸, 得到浅棕黄色油状物或晶体, 收率 78.7%。
( 5 )/?-(3, 4-二氧亚甲基苯基) 羟基丙酸薄荷酯的合成类似 于实施例 5 (5), 除了使用 ?-(3, 4-二氧亚甲基苯基)-《-羟基丙酸 代替 (3,4-二羟基苯基: Hz-羟基丙酸, 得到淡黄色油状物。 ( 6 ) ?-(3,4-二氧亚甲基苯基) -α-(3-吡啶甲酰氧基)丙酸薄荷 酯的合成
在三口瓶中加入 0.12mol ^-(3, 4-二氧亚曱基苯基) -α-羟基丙 酸薄荷酯用 15mL 酮溶解, 然后加入一定量的催化剂 DCC / DMAP在水浴下滴加^" 0.15mol烟酸的 5mL丙酮溶液, 水浴 反应 2h后, 室温反应 lh。 反应结束后减压抽滤, 蒸馏除去反应 溶剂, 所得粘稠状物质加入 200mL乙酸乙酯, 所得溶液用饱和 NaHCOs洗涤以除去未反应的烟酸和催化剂。 减压浓缩有机相, 得棕色粘稠物, 柱色谱分离得淡黄色油状物 ?- ( 3, 4-二氧亚甲 基苯基) -a- ( 3-吡啶曱酰氧基) 丙酸薄荷酯, 收率 45.5%。
IR(KBr) v/cm"1: 3056.56(H-C=C), 2967.42(CH3), 2940.54(CH2), 1723.02(C=O), 1597.32、 1520.17、 1462·10(苯环 骨架), 1452.62、1480·34、1585(吡啶环骨架), 1268.53(酯的 C=0) , 1235.79、 1017.23(芳基烷基醚), 1125.33(仲羟基 C-O) , 884.43 和 798.62(1,2,4-三取代);
1HNMR(400MHz, CD3COCD3.)^ : 7.56-9.00(m, 4H, Pyridinio-H), 6.679-6.869(m, 3H, Ar-H), 6.06(s, 2H, -OCH20-), 5.10(m, 1H,-CH(0)-) , 4.920-4.983(m, 1H, -OCH(clcy)-), 2.804-2.978(m, 2H, -C¾ -);
13CNMR(500MHz, CD3COCD3)r5: 20.7, 21.0, 21.0, 22.3, 25.7,
28.5, 33.9, 37.8, 39.6, 47.1, 72.6, 75.6, 101.2, 112.7, 115.2, 121.0, 122.1, 126.0, 132.7, 136.4, 146.0, 148.7, 150.4, 151.4, 165.9, 170.8。
实施例 8: β-(3 , 4-二氧亚甲基苯基) -α- (对吡啶曱酰氧基) 丙酸薄荷酯的合成
合成方法类似于实施例 7, 除了使用异烟酸代替烟酸, 最终 得到淡黄色油状物 ?-(3, 4-二氧亚曱基苯基) (对吡啶甲酰氧基) 丙酸薄荷酯, 收率 47.83%。
IR(KBr) v/cm"1 : 2966.27(CH3) , 2943.14(CH2) , 1720.82(C=O), 1592.37、 1517.09、 1467.10(苯环骨架、 ), 1452.24、 1484.56、 1598.23(吡啶环骨架), 1267·67(酯的 C=0), 1237.58、 1027·61(芳基垸基醚), 1103·14(仲羟基 C-0), 880.43 和 795.81(1,2,4-三取代);
1HNMR(400MHz, CD3COCD3)^ : 7.56-9.00(m, 4H, Pyridinio-H), 6.679-6.869(m, 3H, Ar-H), 6.06(s, 2H, -OCH20 -), 5.10(m, 1H,-CH(0)-) , 4.920-4.983(m, 1H, -OCH(clcy)-), 2.804-2.978(m, 2H, -CH2-);
13CNMR(500MHz, CD3COCD3)<5: 20.7, 21.0, 21.0, 22.3, 25.7,
28.5, 33.9, 37.8, 39.6, 47.1, 72.6, 75.6, 101.2, 112.7, 115.2, 122.9, 122.9, 126.0, 132.7, 136.4, 146.0, 148.7, 150.3, 150.3, 165.9, 170.8。
实施例 9: ?-(3,4-二氧亚甲基苯基 )-«-(邻乙酰氧基苯甲酰氧 基)丙酸冰片酯的合成
步骤(1 )〜(4 )等同于实施例 7 ( 1 ) ~ ( 4 )。
( 5 ) ?-(3,4-二氧亚甲基苯基) 羟基丙酸冰片酯的合成类似 于实施例 5 ( 5 ), 除了使用水片代替薄荷, 得到淡黄色油状物。
( 6 ) ?-(3, 4-二氧亚甲基苯基) -α- (邻乙酰氧基苯甲酰氧基)丙 酸冰片酯的合成类似于实施例 7 ( 6 ), 除了使用邻乙酰 苯曱 酸代替烟酸, 使用 ?-(3,4-二氧亚甲基苯基) -α-羟基丙酸冰片酯代 替 ?-(3,4-二氧亚甲基苯基) - -羟基丙酸薄荷酯, 得到浅棕黄色油 状物或晶体, 收率 43.8%。
IR(KBr) v/cm"1: 2981.99(CH3) , 2935.46(CH2) , 1731.08 (C=0) , 1598.03、 1492.10、 1453.90(苯环骨架), 1269.86(酯的 C=0), 1106.22(仲羟基 C O), 880.43和 795.81(1,2,4-三取代), 746.84(邻二取代);
1HNMR(400MHz, CD3COCD3) 5: 7.18-8.00(m, 4H, Ar-H), 6.679-6.869 (m, 3H, Ar-H) , 6.06(s, 2H, -OCH20-), 5.10(m, IH,- CH(0)-), 4.920-4.983(m? IH, -OCH(clcy)-), 2.804-2.978(m, 2H, -CH2 -); 13CNMR(500MHz, CD3COCD3)^: 13.5, 19.5, 19.5, 20.3, 23.3, 30.2, 32.5, 37.8, 45.4, 49.4, 50.6, 56.1, 72.6, 82.1, 112.7, 115.2, 120.9, 121.0, 121.5, 125.5, 130.3, 132.7, 133.5, 146.0, 148.7, 153.6, 165.9, 169.0, 170.8。
实施例 10: ?-(3, 4-二氧亚甲基苯基) - -羟基 -iV-(3-苯基 -1-乙 氧酰基)丙基丙酰胺的合成
步骤(1 )〜(4 )等同于实施例 7 ( 1 ) ~ ( 4 )。
( 5 ) 2-胺基 -4-苯基丁酸乙酯的合成
取苯基丁氨酸 16.50g, 加入无水乙醇 - 350mL, 搅拌下通入 干燥的 HC1气体, 1.5h后停止并改变反应装置, 加热回流 1.5h。 反应结束后, 蒸除大部分乙醇, 有大量白色晶体析出, 抽滤, 洗 涤并干燥, 得白色针状晶体 19.2g, 将白色晶体溶于水溶液中, 用 NaOH溶液调节其 pH值, 乙醚萃取,除去溶剂得无色或微黄 色液体 14.92g, 收率 78.2%。―
( 6 )β-(3, 4-二氧亚甲基苯基) -« -羟基 -7V 3-苯基小乙氧酰基) 丙基丙酰胺的合成
在^ 瓶中加入 0.40g ?-(3, 4-二氧亚甲基苯基) 羟基丙酸 和 12mL CH3CN, 反应瓶外部用水水混合物冷却, 在磁力搅拌 器搅拌下加入 0.62g 2-胺基 -4-苯基丁酸乙酯和 0.02g DMAP, 搅 拌至澄清后,加入 DCC 0.45g, 于搅拌下使反应温度自然升至室 温, 并在室温下反应 5h0 减压蒸除溶剂后, 加入乙酸乙酯, 将 所得乙酸乙酯溶液用 NaHC03洗涤、 HC1 7J溶液洗涤、 水洗。 减压蒸馏即得目标化合物粗品。 粗品经制备色谱纯化, 得 0.39g 白色固体, 收率 51.3%。
IR( Br) v/cm 1: 3417.26(醇羟基), 3255.79 ( NH ) , 2967.53(CH3) , 2934.21(CH2) , 1723.79(C=0) , 1669.97(酰胺 C=0) , 1593.37、 1515.19. 1463.13(苯环骨架), 1239.98、 1026.76(芳基烷基醚), 1111.35(仲羟基 C O) , 884.45 和 792.17(1,2,4-三取代); 698.69, 750.62 (苯环单取代); 1HNMR(400MHz, CD3COCD3) : 6.18-7.50(m, 8H, Ar-H), 6.13(s, 2H, -OCH20-), 4.82(m, 1H,-CH(NH) -), 4.55(m, 1H, -CH(OH)-), 4.12(q, 2H, -OCH2-), 2.804-2.978(m, 2H, -PhCH2-), 2.30-2:54(m, 4H, -CH2C¾-), 1.31(t, 3H, -CH3);
13CNMR(500MHz, CD3COCD3)<5: 14.1, 30.3, 32.3, 41.7, 52.7,
61.3, 73.3, 101.2, 112.7, 115.2, 121.0, 126.1, 128.1, 128.1, 128.9, 128.9, 132.7, 138.0, 146.0, 148.7, 171.5, 172.7。
实施例 11: 2-羟基 -3-(3, 4-二氧亚曱基苯基) -U-羟基 -3-(l- 萘氧基)丙基丙酰胺的合成
步骤(1 )〜(4 )等同于实施例 7 ( 1 )〜(4 )。
( 5 ) 1-萘基环氧丙基醚的合成
在 500mL三口圆底烧瓶中加入 10.03gl-萘酚, 3.1gNaOH, 20.4 环氧氯丙烷 ( S/R )和 ( SgKI再加入 OmL乙醇, 放入微 应器中, 在 30。C搅拌, 300W微波照射下反应 12min后取 出,抽滤,滤液浓缩至干,得油状物质。向油状物质中加入 H20, 用乙醚萃取, 合并乙醚层, 用 NaOH溶液洗 用 H20洗涤一 次,醚层用无水硫酸镁干燥后,浓缩得产物 12.95g,收率 93.2%。
( ό ) 1- ^-3-(1-萘 H¾)-2-丙醇的合成
取浓氨水 450mL 放入微波专用反应瓶中, 并向其中加入
3.0gl-蔡基环氧丙基醚, 电磁搅拌, 在 40。C, 300W微波照射下 反应 14min。 反应完毕后, 浓缩至干, 向其中加入乙酸乙酯, 并 向其中加入浓盐酸, 调节 pH为酸性, 抽滤得 ( 1-萘氧 基) -2-丙醇盐酸盐, 干燥得白色固体。 将固体加热溶解于水中, 调节 pH为碱性, 冷却后有大量白色固体析出。 抽滤干燥得 2.0 克白色固体, 收率 63%。
( 7 ) 2-羟基 -3-(3, 4-二氧亚甲基苯基) 羟基 -3-(1-萘氧基) 丙基丙酰胺的制备
取 1- -3-(1-萘氧基 )-2-丙醇 0.43g用 15niL丙酮溶解, 并 加入 0.45gDCC和 O.lOgDMAP, 在磁力搅拌下滴加 5mL 0.40g ?-(3, 4-二氧亚甲基苯基) -« -羟基丙酸的丙酮溶液,室温反应 lh,有大量白色固体产生。反应结束后,抽滤,将滤液浓缩至干, 向所得物质中加入乙酸乙酯, 用 NaHC03溶液洗涤, 酯层浓缩 至干, 得棕色油状物质, 用制备 ';^目色谱纯化, 得 0.27g浅黄色 油状物质, 收率 32.8%。
IR(KBr) v/cm 1: 3409.82(醇羟基), 3251.72(NH), 2969.37(CH3) , 2944.74(CH2) , 1723.49(00), 1664.74(酯的 C=0) , 1591.77、 1519.90、 1469·21(苯环骨架), 1235.78、 1029.63(芳基烷基醚), 1101.15(仲羟基 C O) , 885.53 和 794.61(1,2,4-三取代); 3050(萘骨架), 798.69, 780.62(萘环单取 代);
1HNMR(400MHz, CD3COCD3)c5: 6.75-8.30(m, 10H, Ar-H), 6.13(s, 2H, -OCH20-), 3.55(m, 2H,- CH2(NH) -), 4.55(m, 1H, -COCH(OH)-), 4.35(m, 1H, -CH(OH)-), 4.02(q, 2H, -OCH2-), 2.90-3.07(m5 2H, -PhCH2-);
13CNMR(500MHz, CD3COCD3)<5: 41.7, 45.1, 68.5, 71.3, 73.3, 101.2, 104.3, 112.7, 115.2, 120.4, 121.0, 122.2, 125.4, 126.1, 126.6, 127.4, 127.6, 132.7, 134.5, 146.0, 148.7, 156.8, 172.7。
实施例 12: 药效学试验
l. ?-(3,4-二羟基苯基) -a-羟基丙酸冰片酯(下文中有时简称为 "丹参素水片酯";)对大脑中动脉阻断大鼠脑微循环血流量的影响
SD大鼠 60只, 体重 220±20g。 随机分为正常对照组、 模型对 照组、 丹参素注射液組 ( ip lmL/kg )和 yff-(3,4-二羟基苯基) -ct- 羟基丙酸水片酯小、 中、 大剂量組(ip 5、 15、 35mg/kg ) 。 正 常对照组和模型对照组 ip等体积生理盐水。 动物腹腔注射 1%戊 巴比妥钠 40mg/kg麻醉, 仰卧位, 头部固定, 延颈中线切口皮 肤, 行气管插管, 自主呼吸。 分离右侧颈总静脉及颈总动脉, 穿 线备用。将动物固定于大鼠立体定位仪上, 于右侧颞顶部用牙科 钻钻开一直径为 6x8mm大小的颅窗, 止血后剪开硬脑膜, 暴露 软脑膜,玻璃及牙科水泥覆盖密闭,将激光多普勒微循环血流计 的激光探头固定于颅窗上。之后动物取侧卧位固定,将右侧颈总 动脉提起, 结扎近心端, 小心剪开颈总动脉, 将一直径约 0.3mm 的尼龙线, 穿入动脉, 穿线前标记从动脉切口到眼外眦的距离, 将尼龙线穿入至接近标记位置时,应减慢穿线速度,并同时观察 激光多普勒微循环血流分析仪所显示的脑微循环血流量,穿到大 脑中动脉时可出现微循环灌流量的突然下降,出现微循环血流量 下降后, 再向内穿入约 lmm, 然后将切口的远心端及动脉内的 丝线牢固结扎, 剪去多余的丝线。 实验结束后, 查看尼龙线是否 阻塞大脑中动脉的起始部,未阻塞动脉者实驗数据作废;对照組 不做处理。 颅窗制备完毕后, 将 J 12200型激光多普勒微循环血 流仪探头固定于颅窗处,并维持探头在整个实验过程中无位移及 转动, 记录该区结扎前及结扎后 5、 15、 30、 45和 60min时的微 循环血流量, 用药组记录时间相同。 以观测时间 lmin内的平均 微循环灌流量为该观察时间的微循环灌流量。
表 1 对大脑中动脉阻断大鼠脑微循环血流量的影响 (w=10 )
微循环血流量 ( mL )
5min 15min 30min 45min 60min 对照 组 1 65.3±5.7 67.4±7.4 67.8±6.8 65.1±5.9 64.2±8.5 模型 組 1 10.2±2.3 11.4±3.4 13.2±4.1 14.0±3.4 14.9±6.5 丹参素组 lniL/kg 10.8±3.6 20.1±6.9** 31.2±9.5A* 33.0±6.8*A 29.4±6.9A* 受试药组 5mg/kg 11.4±5.4 12.4±4.6 12.9±5.1 16.1±4.1 16.0±6.9 受试药組 15mg/kg 9.4±3.7 12.8±5.6 20.7±3.2* 25·0±5.2 24.4±4.8A* 受试药组 35mg/kg 10.8±2.7 19.4±5.1*A 32.7±6.2ΛΑ 35.4±8.2A* 35.2±5.8A* 与模型組比较' <0.05, " <0.01 50
- 18- 本实验显示, 阻断大脑中动脉后, 供血区 (额顶叶)脑微循环 血流量迅速下降, 并维护一较低水平, 至阻断后 30min脑^ t循环 血流量才有所增加, 但增加幅度较低, 说明脑缺血模型成功; ?-(3,4-二羟基苯基) -α-羟基丙酸水片酯 15mg/kg 30min和 35mg/kg 15min后脑微循环血流量均明显增加。 提示扩 微动脉, 增加微 循环的血流量,缺血性脑血管疾病可能具有较好的的作用,但作 用机理有待进一步研究。
2. 丹参素水片酯对心脏缺血再灌注损伤 (I/R )的保护作用
SD大鼠 52只,体重 220±20 g。 随机分为模型对照组、丹参素 注射液组 ( im lmL/kg )和? -(3,4-二羟基苯基) -α-羟基丙酸水片酯 小、 中、 大剂量组(ip 5、 15、 35mg/kg ) 。 正常对照组和模型 对照组 ip等体积生理盐水。 各组连续给药 5d。 末次给药的同时, 用 1.5%戊巴比妥钠麻醉大鼠 (ip 45mg/kg), 右颈动脉插管, 经换 能器连接八导生理记录仪, 气管插管,通气频率 60次 /min, 开胸, 以 6/0 线,在距冠状动脉前降支根部 lmm ~ 2mm系一个袢,其间 穿过一塑料管, 拉紧袢, 观察心电图变化, ST抬高或降低均为 结扎成功,结扎线以下心肌組织颜色变暗。 30min后拔出塑料管, 使冠状动脉血流再通, 再濯时局部組织充血。 对于缺血 30min再 灌注 30min组,分别记录实驗前、缺血 lmin和 30min、再灌 30min 测定心肌梗死面积; 对于缺血 30min再灌注 21ι組, 取心脏组织, 用 10%福尔马林固定后, 石蜡包埋, 4μιη厚连续切片, 分别行免 疫组化检测; 假手术组只穿线, 但不结扎冠脉。
对心肌 I/R心肌梗死范围的影响 大鼠经 30min缺血和 30min再灌注后重先结扎冠脉前降支,处死动物,迅速取下心脏, 将 1%伊文思蓝 0.5mL经主动脉注入心腔, 以区分缺血区和非缺 血区。 剪去心房和右室, -20°C冷藏 30min, 将心 JML^特制的切 片槽内, 沿长轴切成 2mm的薄片, 切片浸入 1%的 TTC磷酸緩冲 液中 (pH值 7.4 ) , 37。C孵育 30min, 以区分危险区和坏死区。 然后用 10%的甲醛固定 24h, 以增强染色颜色对比照相。 经处理 后, 心肌组织被分为: 兰色为正常心肌, 浅红色为缺血心肌, 灰 白色为坏死心肌。 通过计算机图像分析软件计算梗死心肌 (nec) 占危险区心肌 (即缺血心肌, 包括缺血梗死区和缺血未梗死区心 肌, aar)的面积百分比 (nec/aar)及梗死心肌占整个心肌面积百分 比 (nec/lv)来表示梗死程度, 同时计算危险区心肌占左室面积百 分比 (aar/lv)。
表 2 对心肌 I/R心肌梗死面积的影响 組 别 剂量 .动物数 aar/lv(%) nec/lv(%) nec/aar(%) 模型对照组 1 12 67.10±11.40 50.52±15.65 64.10±13.03 丹参素組 lrnL/kg 10 50.21±7.10* 41·41±5.49* 49.87±7.83* 受试药组 5 mg/kg 9 64.09±18.10 48.45±17.11 61.72±14.65 受试药组 15 mg/kg 10 63.02±15.98 48.23±15.34 62.63±13.82 受试药组 35 mg/kg 11 51.97±13.04* 40.21±12.65* 50.01±9.03* 与模型对照组比较 *P < 0. 05
结果表明, 与模型组比较, 大剂量组 aar/lv、 nec/lv和 nec/aar 分别下降 22·5%、 20.4%和 22%( Ρ<0· 01),提示可减少心肌! /R心 肌梗死面积。
对 Bax、 Bcl-2、 caspase-3, MMP-2和 ΡΡΑΙΙγ蛋白质表达的 影响 采用标准免疫組化 ABC和 SP法染色。 Bax: 抗兔多克隆抗 体 (Santa C zBio. Inc. ), 稀释度为 1: 200; Bcl22: 抗兔多克隆 抗体 (TBD天津生物技术中心), 稀释度为 1100; caspase-3: 抗兔 多克隆抗体 (Normarkers Fromont , CA) , 稀释; i为 1: 200 ; MMP-2: 抗小鼠单克隆抗体 (NormarkersFromont, CA), 稀释 度为 1 : 200; PPARy: 抗羊多克隆抗体 (Santa Cruz Bio. Inc. ), 稀释度为 1: 500。具体步驟按 ABC和 SP试剂盒说明书操作, DAB 显色, 中性树脂封片。 用 PBS代替一抗作为阴性对照。 检测内容 阳性表达的细胞为棕黄色, MMP-2蛋白在胞浆内, Bcl-2为核膜 和胞浆表达, Bax主要存在胞浆, 部分在胞核表达, caspase-3主 要在胞核表达, 部分在胞浆表达。 用 CMIAS图像分析系统对切 片进行随机选场、 自动采点分析, 以所得心肌組织切片平均光密 度值或积分光密度进行统计处理。
表 3对 Bax、 Bcl-2、 caspase-3、 MMP-2、 和 PPARy蛋白质表达 的影响(《=10 )
OD值
组 别 剂量
Bax Bcl-2 Caspase-3 MMP-2 PPARy 模型对照組 / 0.13±0.04 0.14±0.03 0.37±0.11 0.16±0.04 0.17±0.02 丹参素组 lmL/kg 0.08±0.02A 0.18±0.04 0.21±0.12** 0.12±0.05 0.34±0.08AA 受试药组 5 mg/kg 0.12±0.03 0.15±0.03 0.35±0.14 0.14±0.05 0.16±0. 05 受试药組 15 mg kg 0.09±0.05 0.15±0.06 0.32±0.08 0.14±0.03 0.18±0.06 受试药組 35mg kg 0.07±0.03* 0.21±0.04* 0.20±0.07*A 0.11±0.03* 0.18±0.10 与模型对照组比较 *p < o. 05, **P < 0. 01
本实臉表明心肌细胞 I/R确实存在 Bcl-2和 Bax表达的变化, 说明它们参与了细胞凋亡的调节。 (3,4-二羟基苯基) 羟基丙 酸冰片酉能减少 Bax、 caspase- 3蛋白质的表达,增加 Bcl-2蛋白质 表达, 提示 ?-(3,4-二^基苯基) 羟基丙酸冰片酯能够通过诱导 Bcl-2表达和减少 Bax、 caspase-3来调动细胞对抗损伤的自我保护 机制, 逆转心肌! /R所启动的细胞凋亡和坏死过程, 而对心肌细 胞起保护作用。
MMP-2与心肌 I/R损伤有关, 且是通过裂解肌钙蛋白 I实现 的, 而肌 4蛋白 I的裂解可直接导致细胞凋亡。 特异性 MMP-2抑 制剂可使大鼠心肌 I/R 心脏功能得以改善, 本实验结果显示 ?一 (3,4-二羟基苯基) -α-羟基丙酸水片酯作用后减少 ΜΜΡ-2蛋白 质, 这可能为) ff-(3,4-二羟基苯基) -α-羟基丙酸冰片酯抗心肌 I/R损 伤的另一机制。 3. 丹参素冰片酯对麻醉大鼠血压及心脏左室功能的影响 大鼠腹腔注射 20%乌拉坦 5mL/kg麻醉, 固定;切开大鼠颈 部皮肤,分离颈前肌,暴露气管,插入气管插管;分离颈总动脉, 用心导管经颈总动脉插入左心室, 通过 RM-6000多道生理记录 仪的压力换能器( T-200 )和 RM-6000多道生理记录仪的载^: 大器 (AP-601G ) 测量左室内压, 再将左室内压信号输入到 RM-6000 多道生理记录仪微分放大器(ED-601G )记录左室内 压上升或下降最大速率 p/dtmax -dp/dtmax ); 分离右侧股动脉, 插管测定动脉血压; 连接心电记录电极, 记录标 II心电图, 所有 测量数据经 RM-6000多道记录仪输入到 PowerLab/8Sp数据采 集与处理系统, 通过 PowerLab/8Sp对所采集的数据进行记录、 分析和处理。
在剑突下方 1.5cm处开腹找出十二指肠, 避开血管用眼科剪 剪一小口插入导管, 并做缝合固定以备给药, 手术结束以后, 等 待 30分钟, 待所观察指标稳定后, 记录正常值。
通过导管十二指肠给药, 并于药后 5、 15、 30、 60、 90、 120 分钟对观察指标进行记录。各项观测指标,按下式计算出其变化 率, 并以变化率进行组间比较的统计学处理。
给药后-给药前
变化率(% ) = xlOO
给 药 前
3.1对麻醉大鼠心率的影响
试验结果显示,丹参素水片酯 4.5mg/kg、 9mg/kg和 18mg/kg 三个剂量组对麻醉大鼠心率均无明显影响,与空白对照组比较无 显著性差异; 盐酸维拉帕米有明显降低心率的作用,与模型组比 较有显著性差异( P<0.05或 P<0.01 ) (表 4 )。
3.2对麻醉大鼠平均动脉压、 收缩压、 舒张压的影响
丹参素水片酯 18mg/kg組, 在给药后可明显降低麻醉大鼠 平均动脉压、 收缩压和舒张压, 与空白对照组比较, 在 15、 60、 90、 120分钟处有显著性差异( P<0.05或 P<0.01 ); 丹参素冰片 酯 9mg/kg组有降低麻醉大鼠平均动脉压、收缩压和舒张压趋势, 与空白对照组比较, 在 15、 60分钟处有显著性差异( P<0.05或 P<0.01 ); 丹参素冰片酯 4.5mg/kg組对麻醉大鼠平均动脉压、 收 缩压和舒 压无明显影响, 与空白对照组比较无显箸性差异; 盐 酸维拉帕米组可显著降低麻醉大鼠平均动脉、 收缩压和舒张压, 与模型对照组比较, 在 5、 15、 30、 60、 90、 120分钟处有显著 性差异(Ρ<0·01 ) (表 5、 6、 7 )。
3.3对麻醉大鼠左室内压的影响
丹参素水片酯 18mg/kg组, 在给药后可明显降 醉大鼠 左室内压, 与空白对照组比较, 在 15、 30、 60、 90、 120分钟处 有显著性差异( PO.05或 P<0.01 ); 丹参素水片酯 9mg/kg组, 在给药后有降 醉大鼠左室内压趋势,与空白对照组比较,在 60 分钟处有显著性差异( PO.05 或 P<0.01 ); 丹参素水片酯 4.5mg/kg组, 在给药后对麻醉大鼠左室内压无明显作用, 与空 白对照组比较无显著性差异; 盐酸维拉帕米组,在给药后可明显 降低麻醉大鼠左室内压, 与空白对照組比较有显著性差异 ( PO.01 ) (表 8 )。
3.4对麻醉大鼠 dp/dt和 -dp/dt的影响
丹参素冰片酯 18mg/kg组,在给药后可明显降 ^醉 dp/dt, 与空白对照组比较, 在 15、 30、 60、 90、 120分钟处有显著性差 异( P<0.05或 P<0.01 ); 丹参素冰片酯 9mg/kg组, 在给药后有 降低麻醉大鼠 dp/dt趋势, 与空白对照组比较, 在 60、 120分钟 处有显著性差异(P<0.05或 PO.01 ); 丹参素冰片酯 4.5mg/kg 组, 在给药后对麻醉大鼠 dp/dt无明显作用, 与空白对照组比较 无显著性差异; 盐酸维拉帕米组,在给药后可显著降低麻醉大鼠 dp/dt, 与空白对照组比较有显著性差异(P<0.01 )。
丹参素水片酯 9mg/kg和 18mg/kg组,在给药后有降 醉 大鼠的 -dp/dt趋势, 与空白对照组比较, 在 60、 120分钟处有显 著性差异( P<0.05或 P<0.01 ); 丹参素冰片酯 4.5mg/kg组, 在 给药后对麻醉大鼠的 -dp/dt无明显作用,与空白对照组比较无显 著性差异; 盐酸维拉帕米組, 在给药后可显著降低麻醉大鼠的 -dp/dt, 与空白对照组比较有显著性差异(Ρ<0·01 )。(表 9、 10 )。 实验结果表明, 丹参素冰片酯可降低左室内压、 dp/dt和 -dp/dt, 提示丹参素冰片酯具有降低心肌收缩性的负性心力作 用。其负性心力作用可能是导致麻醉大鼠平均动脉压、收缩压和 舒张压下降的原因。
同时, 实验显示 dp/dtMAX降低, 而心率变化不大, 与心率变 化不成正相关, 其机制有待进一步探讨。
4.丹参素冰片酯对大鼠急性心肌缺血保护作用
雄性大鼠 60 只, 随机分为为假手术组 (0.5%泊洛沙姆 10mL/kg ), 模型对照组(0.5%泊洛沙姆 10mL/kg ) 、 维拉帕米 組(维拉帕米片 10mg/kg )和丹参素冰片酯组( 10mg/kg、 20mg/kg 和 40mg/kg ) 。 各组灌胃给药 0.5小时后, 记录标准 II导联心电 图 (造模前), 测量 ST-T段高度。 然后除假手术组大鼠冠状动 脉下穿线但不结扎外,其余各組按下法结扎冠状动脉制造急性心 肌缺血模型。 用乙醚麻醉大鼠, 仰卧固定, 记录正常心电图(造 模前)。 在无菌条件下切开左胸部庆肤, 于第四肋间隙鈍性分离 肌肉, 轻压右胸挤出心脏, 于肺动脉圆锥与左心耳之间, 距左冠 状动脉起源 2 ~ 3mm处结扎冠状动脉左前降支,随后立即把心脏 送回胸腔,缝合伤口。 局部涂抹青霉素预防感染。 手术后立即记 录缺血后心电图 (造模后 Omin ), 测量 ST-T段高度。 各组动物 于手术后 24小时, 腹腔注射 20%乌拉坦 5mL/kg麻醉, 再记录 心电图(造模后 24h ), 测量 ST-T段高度; 腹主动 血, 分离 血清, 测定乳^^氢酶(LDH )、 肌酸激酶(CK )、 肌酸激酶同 工酶( CK-MB )、超氧化物歧化酶( SOD )活性和丙二醛( MDA ) 含量; 开胸剪取心脏, 用冷生理盐水冲洗, 除去心房, 将心室横 切成 3 ~ 4片, ί¾ 0.25% NBT溶液中, 37°C水浴 lOmin染色, 切下梗死心肌称重, 计算梗死心肌占全心室心肌重量的百分比 (表 11-14 )。
结果表明 ,丹参素冰片酯各剂量组均能降低急性心肌缺血大 鼠梗塞心肌占全心室的比例, 其中以中、 大剂量組作用较强 ( P<0.05或 P<0.01 ); 各剂量组均能降低 24小时后血清乳舰 氢酶( LDH )、 肌酸激酶 ( C )、 肌酸激酶同工酶( CK-MB )的 活性; 升高急性心肌缺血大鼠血清 SOD活性, 以大剂量组作用 较强 (PO.05 ); 大、 中剂量组有降低血清 MDA含量的趋势, 但与模型对照组比较无显著性差异; 降低结扎冠脉 24小时后心 电图 ST-T段的抬高,以大剂量组作用明显 (P<0.05)。 结果说明, 丹参素水片酯均能缩小大鼠心肌梗塞范围,对大鼠急性心肌缺血 有保护作用。
表 4 对心率 (beat/m i ) 的影响
给 药 后
組 别 量 给药前
5, 15' 30' 60' 90' 120' 空白对照組 2.5mJi/kg 344.39±42.73 344.28±46.02 3S5.13±44.09 349.22±47.61 354.23±47.61 361.39±48.94 3S9.78±54.27
(n=10) 2.23±5.30 5.ί6±7.27 4.44±10 4 6.18±11.78 8.06±15.53 7.37±15.32 吐 ' 对照组 2.5mL/kg 322.67±58.28 326.83±50.06 328.47±46.72 . 337.91±49.80 332.98±55.18 , 333.84±54.39 327.03±57.06
(ii=10) 2.42±U.78 4.0S±20.61 6.63±18.47 5.03±19.64 5.46±19.62 3.30±20.73 丹参素水片酯組 18mg/kg 357.2S±35.29 358.56±44.88 356.00±40.82 348.07±39.21 357.22±47.10 355.33±9.61 357.68±53.26
(n=10) 0.22±4.94 -0.07±9.93 -2.01±12.45 0.39 3.05 -0.44±6.91 0.28±12.04 丹参素水片 i組 9mg/kg 373.43±41.28 374.04±47.60 374.93±47.51 361.94dh43.56 359.61i39.30 354.38±62.30 354.09±47.98
(B=10) 0.28±7.83 0.48±7.36 -3.00dbS.83 -4,52±7.I3 -4.13±17.94 -4.62±12.34 丹参素冰片 SI组 4.5mg/kg 329.43±43.77 331.41^ .67 347.56dfc47.18 348.91±52.1I 365.43±32.77 369.71i35.54 360.36i51.93
(n=10) 2.49±7.18 5.67±7.58 5.97±9.72 12.05±12.32 13.31±13.05 9.40±6.30 维拉桷米对照組 H.4tng kg 363.1 ±46.67 345.03±33.81 324.96±36.20 322.02±51.09 317.91±58.04 329.61±55.70 328.05±58.98
(n=10) -4.63±4.0S* ' -9.67±11.64* ' -10.32±16.S6* -1L31±19.30* -7.75±20.U -7.96±21.39 与吐温 照组比较 *p < 0.05» **p < 0.01
b 表 S 对收缩压 (mmHg ) 的影响
给 药 后
组 別 剂 量 ' 给药前 .
5, 15' 30' 60' 90' 120' 空白对照組 2.5mL/kg 117.57±21.61 121.76±23.27 , 123.75±26.S4 U8.91±32.99 118.80±31.50 U8.40±33.16 124.51±35.18
(n-10) 3.55±5.90 4.98±9.25 -0.09±15.39 ±10.36 . -0.17±12.98 5.80±24.03 吐温对照組 . 2.5mL kg 124.41±26.13 122.64±26.97 124,75±24.75 121.92±23.44 120.80±29.92 121.05±27.12 U9.48±25.05
(n=10) -L33±6.67 1.08±9.91 -0.79±13.70 -2.46±16.70 -1.80±16.77 -2.7±17.49 丹参素水片酯组 ISmg/kg 128.25±23.86 128.34±28.96 120.90±26.54 117.76ΪΪ2.90 106.97i32.22 104.23±32.16 113.34±24.47
(n=10) -0.06±12.42 -5.49±14.53' -7.74±12.22 -16.34±19.90' -18.68±18.21" -10.88±16.04 ' 丹参素冰片酯組 9mg kg 132.26*20.00 131.10 ±24.38 127.85±23.92 122.58±23.46 115.46±23.90 120.90±31.83 120.85±32.13
(n=W) -1.14±6.6S -3.57±7.14" -7.38±8.66 -12.63±H.39' * -8.80±16.65 -9.19±14.65* 丹参素水片 II组 4.5mg kg 129,06i32.13 126.54±25.94 128.80±24.39 129.90±23.86 135.97*22.80 131.95i35.10 128.62±28.30
(n=W) -1.96±11.16 -0.05±10.13 ¾93±11.47 5.64±8.91 2.56±13.11 -0.49±12.2S 维拉 ¾ 照组 11.4mgkg 137.10±28.79 U5.30±19.35 98.48±16.13 94.47±17.17 98,49±22.31 99.15±23.91 102.58±27.01
(η=10) -14.92±9.40" -29.86±12.10" * -26.55±17.97" -26.28±17.28* ' -23.82±18.16* · 与吐 照组比较 *p < 0,05, **p < 0.01
Figure imgf000028_0001
-表7 平均动脉压 (mmHg ) 的影响
给 药 后
組 别 M 量
5' 15' 30' 60' 90' 120' 空白对照組 2.5mL/kg 81.80±15.30 84.93±16.35 86.66±18.78 83.S7±22.97 83.96±22.23 83.59±23.20 87.13±25.01 =10) 3.81±6.04 5.64±9.78 1.26±15.60 1.82±12.68 1.51±15.15 6.04±22.99 吐 SX照组 2.5mL/kg 86.51±18.19 85.05±18.38 86.6fttl6.88 84.92±16.37 84.24±20.76 84.38±19.01 83.34 ±18.04 =10) -1,45±7.32 1.28±12.05 -0.32±16.30 -1.82±19.29 -1.26±1 .14 -2.22 ±20.12 丹参素水片醋组 18mg kg 91.44±15.44 91.15±20.31 86.21±18.29 83.71±15.31 74.94 ±21.07 78.81 ±17.04
(n=10) -0.58±13.53 -5.52±14.99" -7.79±14.45 -16.01±20.44" -17.64±18.17' -12.96±17.66* 丹参素水片酯组 9mg kg 90.23±16.25 89.05±20.26 86.74±20^5 82.79±18.98 77.89±18.11 82.38±23.18 82.00±25.04
(n=10) -L79±8.69 -4.42±8.30" . -8.42±9.56 -13.46±12.43 ' -8.77±16.66 -9.71±15.95* 丹参素水片酯組 4.5mg/kg 88.67±14.74 87.97±18.89 90.18±17.91 91.15±17.95 96.51±16.69 93.79±20.11 91.18±22.76
(n=10) -L01±11.95 1.66tll.07 2.91±12.81 8,95±8.95 5.62±15.30 2.06±14 7 维拉帕米对照組 11.4mg kg 95.96±22.22 78^2±14.31 66.21±11.57 63.49±11.93 65.37±14.57 65.97±16.34 68.75±17.93
(n=10) -17.07±11.03 " " -29.16±13.09" ' -32.04±13.81 " -29.68il8.40· · -29.33±17.82 " . -26.6S±17.62" 与吐 i¾!t照組比较 *p < 0.05, **p < 0.01
1 表 8 '左室内压 ( mmHg ) 的影响
给 药 一 后
组 别 剂 量 给药前 ' .
5, 15' 30' 60* 90' 120' 空白对照组 .2.5mL/l¾ 124.84±14.88 127.99±16.77 128.87±18.64 126.10±22.02 126.30±21.69 125.79±22.94 128.12±24.71
(n=10) 2.48± .20 3.05±5.46 0.51±8.27 0.75±7.10 0.27±8.10 2.02±10.87 吐温对照组 2.5mL/l¾ 126.46±14.18 125.76±13 8 127.22±12.98 125.33±14.26 124.91±16.52 124.32±15.43 122.50±15.26
(n=10) -0.41±4.07 0.87±6.22 -0.61±8.37 -1.07±9.12 -1.45±9.18 -2.83±9.80 丹参素水片薛组 18mg kg 131.93±16.79 . - 131.90±18.96 126.28±18.51 124.81±18.94 120.67±23.43 117.91±22.68 119.85±22.26
(n=10) -0.01±7.29 -4.15±8.95* -5.46±7.09 -8.71±11.64" -10.ί81±11.60" -9 13±13.16 " 丹参素水片薛組 9mgfkg ' 128.29±18.38 128.87±25.63 127.06±25.57 123.59±25.06 119.77±23.09 122.40±26.58 121.85±26.36
(n=10) -0.03±8.26 -1.37±9.10 -4.07±8.57 -6.84±8.75" -4.88±11.37 -5.47±9.76 丹参素冰片酯組 4.5mg kg 128.68±20.18 128.67d=18.24 130.13±18.12 129.67±17.48 134.39±19.12 130.91±17.22 129.15±18.53
(n=10) 0.38±6.72 1.51±6.25 1.22±7.07 4.73±6.55 2.3^9.41 0.79±7.76 维拉帕; ^照组 11.4mg/kg 137.79±18.96 128.71±14.20 120.22±12.98 ' 116.59±13.59 115.68±15.37 115.10±16.60 118.39±16.55
(η=10) -6.24±4.79* · -12.21±7.42" -14.73±8.91" ' -15.14±12.14' * -15.59±12.52 ' * -13.34±11.53 ' ' 与吐 i¾ti "照组比较 *p < 0.05, * *p < 0.01
Figure imgf000029_0001
表 10'左室内压变化速率 -MAX ( mmHg/s ) 的影响
给 药 后
组 別 剂 量 给药前
5' 15' 30' 60' 90' 120' 空白对照组 2.5mL kg -3790.6±596.7 -3865.0±679.8 -3891.5±775.2 -3879.0±906.5 -3881.4±781.9 -3858.7±715.1 -3985.4±899.9
(n=10) 1.8±4.8 2.3±8.0 1.3±11.4 2.0±10.4 1.8±10.9 4.4±13.8 吐温对照组 . 2.5mL/kg -3753.7±603.1 -3690.5±526.4 -3767 ±551.9 -3692. ±698.4 -3673.8±721.5 -3658.5±653.0 -3573.1±702.5
(n=10) -1.4±2.7 0.ί^8;5 -1.0±16.2 -1.6±16.5 -1.8±16.4 -4.4±15.4 丹参素水片醋組 18mg¾g -4092.0±905.4 -4103.4±981.2 -3991.9±948.6 -3923.8±S79.8 -3744.3±851.5 -3659.3±806.3 -3692.1±863.3
(n=10) 0.0±7.8 -2.4±9.3 . -3.9±8.2 -7.9±14.0' -9.2±16.9 -8.8±16.9' 丹参素水片能组 9mg/kg -3881.3±735.6 -3908.5±1013.0 -3792.8±979.5 -3696.8±997.3 -3569.5±857.8 -3629.7±1013.3 -3541.7±917.7
(n=10) 0.0±11.2 -2.9±10.2 -5.5±10.8 -8.3±10.2' -7.2±13.3 -9.2±11.3' 丹参素冰片 SI組 4.5mg kg -4246.1±669.3 -4152.9±764.8 -4141.1±755.6 -4090.5±704.6 - 146.8±820.5 -4156.0±947.7 -3995.2±837.9
(n=10) -2.2±8.2 -2.4士 9.1 -3.6±6.5 -2.4±10.2 -2.2±15.9 -5.6±14.3 阳'^ t照组 11.4mg l¾ -4215.6±1058.0 -3812.9±779.3 -3548.9±707.7 -3416.6±767.5 -3436.8±691.1 -3247.4±773Λ -3452.2±630.9
(ιι=10) -8.5±6.6" ' -14.5±9.9" -17.8±11.8" ' -16.2±16.0" -20.9±1 & " -16.3±11.4' ' 与吐温对照组比较 *ρ < 0.05, **ρ < 0.01
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Figure imgf000031_0001
n
-62- SST00/.00ZN3/X3d 表 13对心肌缺血大鼠血清 SOD和 MDA活性的影响 剂量(mg/kg ) 动物数(只) SOD ( U/mL ) MDA ( nmoI/mL ) 假手术組 1 10 155.08±21.45** 6.86±5.67A 模型对照组 1 10 95.46±26.05 18.20±12.10 丹参素冰片酯 10 10 117.66±31.97 21.69±27.94 丹参素冰片酯 20 10 111.32±20.36 10.60±11.156 丹参素水片酯 40 10 119.63±23.53* 9.43±6.57 维拉帕米组 10 10 126.16±28.10* 11.86±5.93 与模型对照组比较, *P<0.05, **P<0.01 表 14对心肌缺血大鼠心电图 ST-T段的影响 剂量 动物数 ST-T段抬高值( mV )
(只) 造模前 造^^ Oniin 造^ 24h 假手术组 1 10 0.18±0.08 0.15±0.25 0.12±0.06
变化率(% ) 140.08±161.56 22.34±21.51** 模型对照组 1 10 0.20±0.09 0.19±0.41 0.23±0.10
变化率(% ) 155.67±158.10 92.67±91.35 丹参素水片酯 10 10 0.21±0.06 0.24±0.24 0.17±0.09
变化率(% ) 95.00±78.34 49.00dz36.27 丹参素冰片酯 20 10 0.17±0.07 0.13±0.16 0.11±0.10
变化率(% ) 91.61±116.85 60.77±39.69 丹参素水片酯 40 10 0.21±0.06 0.36±0.17 0.18±0.07
变化率(% ) 103.87±148.26 29.0 18.99* 维拉帕米组 10 10 0.23±0.04 0.23±0.12 0.18±0.04
变化率(% ) 34.36±35.86A 19.17±20.94* 与模型对照组比较, *P^0.05, **P<0.01

Claims

权 利 要 求
1. 一种由通式(I )表示的化合物:
Figure imgf000033_0001
( I )
其中, 、 R2、 R3相互独立地选自 H、 OH、 F、 Cl、 Br、 甲氧基和乙氧基; 或作为替代地, 、 一起形成 -oc¾o-, 并且 R3选自 H、 OH、 曱 、 乙 和卤素;
t为 OH或酰氧基;
Rs选自环烷氧基、 和取代氨基, 并且在 R5是氨基的情 况下, 、 R2、 R3不全为 H。
2、根据权利要求 1所述的化合物, 其特征在于: R4为 OH。
3、 根据权利要求 1所述的化合物, 其特征在于: ¾为芳酰 氧基或杂环取代酰 11^。
4、 根据权利要求 3所述的化合物, 其特征在于: 为邻乙 酰氧基苯甲酰氧基、 3-吡啶苯甲酰氧基或 4-吡啶苯甲酰氧基。
5、根据权利要求 1-4中任一项所述的化合物, 其特征在于: 为:
Figure imgf000033_0002
Figure imgf000034_0001
6、 根据权利要求 1所述的化合物, 其特征在于: R2分 别为 OH。
7、 根据权利要求 1所述的化合物, 其特征在于: 、 R2— 起形成 -OCH20-。
8、 根据权利要求 6 所述的化合物, 其特征在于: R3=H,
Figure imgf000034_0002
9、 根据权利要求 7 所述的化合物, 其特征在于: R3=H,
Figure imgf000034_0003
10、 根据权利要求 7所述的化合物, 其特征在于: R3=H,
Figure imgf000034_0004
11、 根据权利要求 7所述的化合物, 其特征在于: R3=H,
Figure imgf000034_0005
12、一种合成根据权利要求 1的化合 的方法,所述方法包 括使通式(III ) 的化合物与通式(IV ) 的化合物或其水合物在 催化剂存在下反应:
Figure imgf000035_0001
(III) (IV) 其中 、 R2、 R3、 ¾和 R5的意义同通式(I) 中所述; 或者 所述方法包括使通式(V)的化合物与通式(VI)的化合物或其 水合物在催化剂存在下反应:
Figure imgf000035_0002
(V) (VI)
其中 、 R2、 R3和 R5的意义同通式(I)中所述, '为酰氧基。
13、 根据权利要求 12的合成方法, 其特征在于: 所述的催 化剂为浓 H2S04、 硅钨酸、 磷钼酸、 对甲基^^酸、 s2o- /Zr02、 三氯化铝、 氯化锌和 /或氯化镁。
14、 才艮据权利要求 12的合成方法, 其特征在于: 所述反应 在溶剂中进行。
15、 根据权利要求 14的合成方法, 其特征在于: 所述溶剂 选自乙酸乙酯、 二氯甲烷、 四氢呋喃、 丙酮、 甲苯、 1,4-二氧六 环和 A v-二曱基甲酰胺, 单独或組合使用。
16、根据权利要求 1的化合物用于制备预防和治疗心脑血管 疾病的药物的用途。
17、根据权利要求 16的用途,其中所述化合物是下列式(II) 的化合物。
Figure imgf000036_0001
SST00/.00ZN3/X3d 9 UI/L00Z OAV
PCT/CN2007/001550 2006-05-15 2007-05-14 Acide bêta-phényl-alpha-hydroxy propanoïque substitué, procédé de synthèse et son utilisation WO2007131446A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP07721123A EP2019090B1 (en) 2006-05-15 2007-05-14 Substituted beta-phenyl-alpha-hydroxy propanoic acid, synthesis method and use thereof
NZ572958A NZ572958A (en) 2006-05-15 2007-05-14 Substituted beta-phenyl-alpha-hydroxy propanoic acid, synthesis method and use thereof
BRPI0712101A BRPI0712101B8 (pt) 2006-05-15 2007-05-14 ácido beta-fenil-alfa-hidróxi propanóico substituído, método de síntese e uso do mesmo
PL07721123T PL2019090T3 (pl) 2006-05-15 2007-05-14 Podstawiony kwas beta-fenylo-alfa-hydroksypropionowy, sposób syntezy i jego zastosowanie
JP2009510260A JP5094845B2 (ja) 2006-05-15 2007-05-14 置換β−フェニル−α−ヒドロキシプロピオン酸、その合成方法及び使用
DK07721123.3T DK2019090T3 (da) 2006-05-15 2007-05-14 Substitueret beta-phenyl-alfa-hydroxypropansyre, fremgangsmåde til syntese og anvendelse deraf
US12/301,069 US8017786B2 (en) 2006-05-15 2007-05-14 Substituted β-phenyl-α-hydroxy-propanoic acid, synthesis method and use thereof
AU2007250364A AU2007250364B8 (en) 2006-05-15 2007-05-14 Substituted beta-phenyl-alpha-hydroxy propanoic acid, synthesis method and use thereof
KR1020087030201A KR101059639B1 (ko) 2006-05-15 2007-05-14 치환된 베타-페닐-알파-하이드록시 프로파노산, 그의 합성 방법 및 사용
SI200731105T SI2019090T1 (sl) 2006-05-15 2007-05-14 Substituirana beta-fenil-alfa hidroksi propanojska kislina, postopek sinteze in njena uporaba
CA2652299A CA2652299C (en) 2006-05-15 2007-05-14 Substituted beta-phenyl-alpha-hydroxy propanoic acid, synthesis method and use thereof
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WO2014091465A3 (en) * 2012-12-16 2014-12-24 Mahesh Kandula Compositions and methods for the treatment of metabolic syndrome and lipid disorders
CN103570546A (zh) * 2013-10-09 2014-02-12 西安石油大学 一种丹参素冰片酯的工业化合成方法
WO2019127746A1 (zh) * 2017-12-30 2019-07-04 苏州沪云肿瘤研究中心股份有限公司 一种苯丙酸酯类化合物及其制备方法和应用
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