CN116375644B - Aporphine alkaloid compound and preparation method and application thereof - Google Patents

Aporphine alkaloid compound and preparation method and application thereof Download PDF

Info

Publication number
CN116375644B
CN116375644B CN202310237740.6A CN202310237740A CN116375644B CN 116375644 B CN116375644 B CN 116375644B CN 202310237740 A CN202310237740 A CN 202310237740A CN 116375644 B CN116375644 B CN 116375644B
Authority
CN
China
Prior art keywords
column
alkaloid compound
aporphine alkaloid
fractions
aporphine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310237740.6A
Other languages
Chinese (zh)
Other versions
CN116375644A (en
Inventor
蔡祥海
刘将新
保梅芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunming Institute of Botany of CAS
Original Assignee
Kunming Institute of Botany of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunming Institute of Botany of CAS filed Critical Kunming Institute of Botany of CAS
Priority to CN202310237740.6A priority Critical patent/CN116375644B/en
Publication of CN116375644A publication Critical patent/CN116375644A/en
Application granted granted Critical
Publication of CN116375644B publication Critical patent/CN116375644B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D221/00Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/04Ortho- or peri-condensed ring systems
    • C07D221/18Ring systems of four or more rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47Quinolines; Isoquinolines
    • A61K31/473Quinolines; Isoquinolines ortho- or peri-condensed with carbocyclic ring systems, e.g. acridines, phenanthridines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/04Anorexiants; Antiobesity agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Diabetes (AREA)
  • Hematology (AREA)
  • Obesity (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The invention belongs to the technical field of medicine development, and particularly relates to an aporphine alkaloid compound, and a preparation method and application thereof. The aporphine alkaloid compound provided by the invention has a double-selective and high-efficiency inhibition effect on indoleamine 2, 3-dioxygenase (IDO 1) and tryptophan 2, 3-dioxygenase (TDO), can be used as a TDO/IDO1 double-target inhibitor, and can be used for TDO/IDO1 mediated diseases, such as glioblastoma, head and neck cancer, mesothelioma, non-small cell lung cancer, bladder cancer, breast cancer and other tumors and obesity and other metabolic disorder diseases singly or in combination with other medicines.

Description

Aporphine alkaloid compound and preparation method and application thereof
Technical Field
The invention belongs to the technical field of medicine development, and particularly relates to an aporphine alkaloid compound, and a preparation method and application thereof.
Background
Indoleamine 2, 3-dioxygenase 1 (IDO 1) is the rate-limiting enzyme for the degradation of tryptophan to kynurenine in humans, and plays an important role in the metabolic pathway for the breakdown of tryptophan, which is ubiquitous in all tissues in humans. In the tumor microenvironment, IDO1 over-expressed by tumor cells causes excessive consumption of tryptophan and aggregation of the metabolite kynurenine, inhibiting local immune responses and forming immune evasions. In addition to IDO1, tryptophan Dioxygenase (TDO) of the same family is also able to catalyze the same biochemical reaction in humans, but with different tissue distribution and substrate selectivity. Thus, inhibition of IDO1 activity is one of the strategies for tumor immunotherapy, and drug design for this target has been the focus of research for over twenty years.
TDO/IDO1 is expressed in a variety of tumor cells and surrounding microenvironment cells. TDO and IDO1 are expressed in different tumor cells, at different sites in the same tumor, and some tumor cells express two proteins. Thus targeting tumor cells with 50% greater efficiency for bi-directional selective inhibition of both enzymes than 31% and 34% response rates of tumor cells expressing only TDO or IDO 1. The effectiveness of tumor immunotherapy can be improved complementarily, and the T cell can attack tumors better by coping with epidemic prevention systems of organisms. IDO1 and TDO become important targets for tumor immunotherapy, and simultaneously, the effects of inhibiting the activities of the TDO and the IDO1 on improving the tumor immunotherapy are complementary, so that the response rate to stem cells can be greatly improved, IDO1/TDO dual inhibitors are developed, and the novel drug development important strategy in the field of immunotherapy is realized. The use of inhibitors in combination with other immune checkpoint inhibitors or with conventional methods of chemotherapy, radiation therapy, etc. is also desirable.
The aporphine alkaloid is one of the isoquinoline alkaloids, and is mainly distributed in dozens of plant groups such as Papaveraceae (Papaveraceae), annonaceae (Annonaceae), menispermaceae (Menispermaceae), ranunculaceae (Ranunc mu Laceae), berberidaceae (Berberidaceae) and the like, and is mainly formed by synthesizing benzyl tetrahydroisoquinoline alkaloids through tyrosine biosynthesis, generating dienone or dienol through oxidative coupling of benzyl tetrahydroisoquinoline alkaloids, and then carrying out various rearrangements; or directly forming other types of alkaloids by secondary cyclization, C-C bond and C-N bond cleavage and other reactions of benzyl tetrahydroisoquinoline alkaloids, and forming aporphine by the alkaloids. In addition, the aporphine alkaloid can also be formed by migration and rearrangement of a C-C bond. The aporphine alkaloid has wide physiological activities, including functions of regulating immunity, resisting tumor, resisting bacteria, easing pain, etc. The aporphine alkaloid has abundant compounds with antitumor activity, and the compounds have special and strong anticancer effects and relatively special action mechanisms, so that the aporphine alkaloid is worthy of further research as candidate anticancer drugs and lead compounds. The development of innovative drugs based on natural products is an effective and classical way of drug development worldwide, china has abundant medicinal plant resources, and long-term natural product research accumulation provides a solid foundation and a rich compound library for the development of the innovative drugs. These provide a rich plant resource and compound resource library for the research of innovative drugs based on aporphine alkaloids.
Papaveraceae (Papaveraceae) Dacticapnos plants are rich in apofeine alkaloids, 7 species worldwide, and are distributed Yu Xima Laya regions to the western region of our country. There are 4 kinds of Chinese, including Dactylicapnos (D. Scandens), myrsine (D. Tor. Mu.losa), lijiang Dactylicapnos (D. Lichiangensis) and Dactylicapnos (D. Roylei), in southwest, respectively. The plants are rich in aporphine alkaloids, in particular to dactylicapnos (Dactylicapnos scandens) which is a traditional and conventional medicinal material in white nationality of Yunnan province, and are also called as 'hard-turning' in white nationality, such as radix kadsurae, radix Pisi Sativi, radix Hedychii and the like. The root is collected in summer and autumn, dried in the sun, and then used as a medicine, has bitter taste and cool nature, has the effects of easing pain, stopping bleeding, diminishing inflammation and reducing blood pressure, and is widely used for toothache, nervous headache, stomachache, cancer resistance and the like by the white nationalities. To date, 70 or more isoquinoline alkaloids isolated from dactylicapnos have been involved in the framework types including aporphines, pra Luo Tuo, morphine, benzophenanthridines, etc., especially aporphines.
However, no study and report on dual inhibition of TDO and IDO1 by the above alkaloids have been made in the prior art.
Disclosure of Invention
The invention aims to provide an aporphine alkaloid compound, a preparation method and application thereof, and the aporphine alkaloid compound provided by the invention has a double-selective and high-efficiency inhibition effect on indoleamine 2, 3-dioxygenase (IDO 1) and tryptophan 2, 3-dioxygenase (TDO), can be used as a TDO/IDO1 double-target inhibitor, and can be used for TDO/IDO1 mediated diseases, such as glioblastoma, head and neck cancer, mesothelioma, non-small cell lung cancer, bladder cancer, breast cancer and other tumors and obesity and other metabolic disorder diseases singly or in combination with other medicines.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an aporphine alkaloid compound, which comprises a structure shown in a formula 1, a formula 2 or a formula 3:
the invention provides pharmaceutically acceptable salts, hydrates or solvent compounds of the aporphine alkaloid compounds in the technical scheme, wherein the pharmaceutically acceptable salts of the aporphine alkaloid compounds comprise inorganic acid salts and/or organic acid salts;
the inorganic acid salt comprises one or more of hydrochloride, hydrobromide, nitrate, sulfate and phosphate;
the organic acid salt comprises one or more of tartrate, citrate, formate, acetate and oxalate.
The invention provides a preparation method of an aporphine alkaloid compound, which comprises the following steps:
(1) Leaching dactylicapnos with polar solvent, concentrating the obtained leaching solution to obtain extract;
(2) Dispersing the extract in a dilute acid aqueous solution, and performing first extraction on the obtained acidic solution by using first ethyl acetate to obtain a first ethyl acetate phase and a first water phase; the pH value of the first aqueous phase is regulated to 7-8, and then second extraction is carried out by using second ethyl acetate, so as to obtain a second ethyl acetate phase; concentrating the second ethyl acetate phase to obtain total alkaloids of dactylicapnos root;
(3) Mixing the dactylicapnos alkaloid total alkali and silica gel, loading the obtained mixture to a silica gel column for first column chromatographic separation, performing gradient elution on the first column chromatographic separation according to the volume ratio from large to small by adopting a chloroform-methanol system with the volume ratio of chloroform to methanol of 1:0-1:1, and merging the same fractions to obtain six sections of fractions which are named as fractions Fr.I-Fr.VI; recrystallizing the fraction Fr.II to obtain a recrystallization mother liquor and isocorydine;
(4) Loading the recrystallization mother liquor to a first chromatographic column for second column chromatographic separation, wherein the second column chromatographic separation adopts a methanol-water system with the volume percentage of 20-90% for gradient elution according to the volume percentage of methanol from small to large, and the same fractions are combined to obtain four sections of fractions which are named as fractions Fr.II-1-Fr.II-4 respectively; loading the fraction Fr.II-3 to a first gel chromatographic column for third column chromatographic separation, wherein the third column chromatographic separation adopts methanol for isocratic elution, and the same fractions are combined to obtain three sections of fractions which are named as fractions Fr.II-3-1 to Fr.II-3-3 respectively; loading the fraction Fr.II-3-1 to a second chromatographic column, and performing fourth column chromatographic separation, wherein the fourth column chromatographic separation is performed by adopting an acetonitrile-water system with the volume percentage of 20-35% to perform continuous gradient elution according to the volume percentage of acetonitrile to obtain an aporphine alkaloid compound with the structure shown in the formula 1;
(5) Mixing the isocorydine, manganese dioxide and an organic solvent for oxidation reaction, and removing the solvent from the reaction liquid obtained after solid-liquid separation to obtain an oxidation product; loading the oxidation product to a second gel chromatographic column for fifth column chromatographic separation, wherein methanol is adopted for isocratic elution in the fifth column chromatographic separation, and the same fractions are combined to respectively obtain a fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in the formula 3; respectively loading the fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and the fraction containing the aporphine alkaloid compound with the structure shown in the formula 3 into third chromatographic columns, respectively carrying out sixth column chromatographic separation, and carrying out continuous gradient elution by adopting an acetonitrile-water system with the volume percentage of acetonitrile from small to large to obtain the aporphine alkaloid compound with the structure shown in the formula 2 and the aporphine alkaloid compound with the structure shown in the formula 3;
there is no chronological limitation between said step (4) and said step (5).
Preferably, the polar solvent is methanol, the leaching times are 4 times, the leaching temperature is normal temperature, the time of each leaching is 2 days, and the ratio of the mass of the dactylicapnos root to the volume of the polar solvent in each leaching is 1kg:10L.
Preferably, the dilute acid aqueous solution is hydrochloric acid solution, the mass percentage of the hydrochloric acid solution is 0.5%, the pH value of the acid solution is 2-3, the first extraction and the second extraction are both equal-volume extraction, and the times of the first extraction and the second extraction are all 3 times.
Preferably, in the step (3), the silica gel used in the mixing is 100-200 mesh silica gel, and the mass ratio of the total alkaloids of the golden dragon to the silica gel is 1:2 during the mixing;
the packing of the silica gel column is 200-300 meshes of silica gel.
Preferably, the first chromatographic column is an RP-18 medium pressure chromatographic column, and the second chromatographic column and the third chromatographic column are both C18 columns;
the first gel chromatographic column and the second gel chromatographic column are gel Sephadex LH-20 chromatographic columns.
The invention provides an aporphine alkaloid compound prepared by the technical scheme or the preparation method of the technical scheme, or application of the aporphine alkaloid compound in preparing medicines of indoleamine 2, 3-dioxygenase 1 and/or tryptophan 2, 3-dioxygenase mediated diseases, wherein the aporphine alkaloid compound is pharmaceutically acceptable salt, hydrate or solvent compound.
The invention provides a pharmaceutical composition, which comprises a pharmaceutical active component and a pharmaceutically acceptable carrier;
the pharmaceutical active component comprises the aporphine alkaloid compound prepared by the technical scheme or the preparation method of the technical scheme, or pharmaceutically acceptable salts, hydrates and solvent compounds of the aporphine alkaloid compound.
Preferably, the mass percentage of the active components of the medicine is more than or equal to 10 percent.
The invention provides an aporphine alkaloid compound, which comprises a structure shown in a formula 1, a formula 2 or a formula 3. The interaction between the aporphine alkaloid compound provided by the invention and TDO and IDO1 is detected by a nuclear magnetic resonance saturated transfer difference spectrum (NMR STD) method. If the aporphine alkaloid compound provided by the invention is combined with TDO and IDO1, saturation is carried out through intermolecular 1 H- 1 H cross-relaxation transferred to the aporphine alkaloid compound and exhibited a complete decrease in intensity. Thus, NMR STD spectra may show only with eggsWhite matter (TDO and IDO 1) in intimate contact. As can be seen from the results of the examples, the amplified STD spectra show H-3, H-4, H-5, H-8, H-9, 1-OCH 3 、10-OCH 3 And 11-OCH 3 Protons have a pronounced STD signal, indicating that these hydrogen atoms may bind to IDO1 and TDO. H-8, 10-OCH 3 And 11-OCH 3 The strongest proton intensity in the NMR STD spectrum indicates tighter binding to the protein. It was inferred that the 8-position hydrogen atom and the methoxy hydrogen atoms at the C-10 and C-11 positions were most closely bonded to the protein. The NMR STD results further confirmed that the compound of the structure shown in formula 1 was directly bound to IDO1 (A) and TDO (B), respectively. Meanwhile, experiments of half inhibition concentration of the compound also show that the aporphine alkaloid compound with the structure shown in the formula 1, the formula 2 or the formula 3 has double selective inhibition on IDO1/TDO, and the aporphine alkaloid compound with the structure shown in the formula 1 has the strongest inhibition effect.
Drawings
FIG. 1 is a flow chart showing the oxidation reaction of isocorydine with manganese dioxide in example 1 of the present invention;
FIG. 2 is a graph showing the binding of the aporphine alkaloid compound prepared in example 1 of the present invention to IDO1 and TDO.
Detailed Description
The invention provides an aporphine alkaloid compound, which comprises a structure shown in a formula 1, a formula 2 or a formula 3:
in the present invention, all preparation materials/components are commercially available products well known to those skilled in the art unless specified otherwise.
The invention provides pharmaceutically acceptable salts, hydrates or solvates of the aporphine alkaloid compounds in the technical scheme, wherein the pharmaceutically acceptable salts of the aporphine alkaloid compounds comprise inorganic acid salts and/or organic acid salts.
In the present invention, the inorganic acid salt preferably includes one or more of hydrochloride, hydrobromide, nitrate, sulfate and phosphate.
In the present invention, the organic acid salt includes one or more of tartrate, citrate, formate, acetate and oxalate.
The invention provides a preparation method of an aporphine alkaloid compound, which comprises the following steps:
(1) Leaching dactylicapnos with polar solvent, concentrating the obtained leaching solution to obtain extract;
(2) Dispersing the extract in a dilute acid aqueous solution, and performing first extraction on the obtained acidic solution by using first ethyl acetate to obtain a first ethyl acetate phase and a first water phase; the pH value of the first aqueous phase is regulated to 7-8, and then second extraction is carried out by using second ethyl acetate, so as to obtain a second ethyl acetate phase; concentrating the second ethyl acetate phase to obtain total alkaloids of dactylicapnos root;
(3) Mixing the dactylicapnos alkaloid total alkali and silica gel, loading the obtained mixture to a silica gel column for first column chromatographic separation, performing gradient elution on the first column chromatographic separation according to the volume ratio from large to small by adopting a chloroform-methanol system with the volume ratio of chloroform to methanol of 1:0-1:1, and merging the same fractions to obtain six sections of fractions which are respectively named as fractions Fr.I-VI; recrystallizing the fraction Fr.II to obtain a recrystallization mother liquor and isocorydine;
(4) Loading the recrystallization mother liquor to a first chromatographic column for second column chromatographic separation, wherein the second column chromatographic separation comprises gradient elution according to the volume percentage of methanol from small to large by adopting a methanol-water system of 20-90%, and merging the same fractions to obtain four sections of fractions which are named as fractions Fr.II-1-II-4 respectively; loading the fraction Fr.II-3 to a first gel chromatographic column for third column chromatographic separation, performing isocratic elution on the third column chromatographic separation by adopting methanol, and combining the same fractions to obtain three sections of fractions which are named as fractions Fr.II-3-1-II-3-3 respectively; loading the fraction Fr.II-3-1 to a second chromatographic column, and performing fourth column chromatographic separation, wherein the fourth column chromatographic separation is performed by adopting an acetonitrile-water system with the volume percentage of 20-35% to perform continuous gradient elution according to the volume percentage of acetonitrile to obtain an aporphine alkaloid compound with the structure shown in the formula 1;
(5) Mixing the isocorydine, manganese dioxide and an organic solvent for oxidation reaction, and removing the solvent from the reaction liquid obtained after solid-liquid separation to obtain an oxidation product; loading the oxidation product to a second gel chromatographic column for fifth column chromatographic separation, performing isocratic elution by adopting methanol, and combining the same fractions to obtain a fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in the formula 3; and respectively loading the fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and the fraction containing the aporphine alkaloid compound with the structure shown in the formula 3 into third chromatographic columns, and respectively carrying out sixth chromatographic separation, wherein the sixth chromatographic separation adopts an acetonitrile-water system with the volume percentage of acetonitrile from small to large to carry out continuous gradient elution to respectively obtain the aporphine alkaloid compound with the structure shown in the formula 2 and the aporphine alkaloid compound with the structure shown in the formula 3.
The invention uses polar solvent to extract dactylicapnos root, and the obtained extract liquor is concentrated to obtain extract.
In the invention, the polar solvent is preferably methanol, the leaching times are preferably 4 times, the leaching temperature is preferably normal temperature, the time of each leaching is preferably 2 days, and the ratio of the mass of the dactylicapnos root to the volume of the polar solvent in each leaching is preferably 1 kg/10L. The specific embodiment of the concentration is preferably concentration under reduced pressure.
After an extract is obtained, the extract is dispersed in a dilute acid aqueous solution, and the obtained acid solution is subjected to first extraction by using first ethyl acetate to obtain a first ethyl acetate phase and a first water phase; the pH value of the first aqueous phase is regulated to 7-8, and then second extraction is carried out by using second ethyl acetate, so as to obtain a second ethyl acetate phase; concentrating the second ethyl acetate phase to obtain the total alkaloids of the dactylicapnos root.
In the present invention, the dilute acid aqueous solution is preferably a hydrochloric acid solution, the mass percentage of the hydrochloric acid solution is preferably 0.5%, the pH value of the acidic solution is preferably 2 to 3, the first extraction is preferably an equal volume extraction, and the number of times of the first extraction is preferably 3. The second extraction is preferably an equal volume extraction and the number of second extractions is preferably 3.
After obtaining the total alkaloids of the dactylicapnos root, the invention mixes the total alkaloids of the dactylicapnos root with silica gel, the obtained mixture is loaded on a silica gel column to carry out first column chromatography separation, the first column chromatography separation is carried out by gradient elution according to the volume ratio from large to small by adopting a chloroform-methanol system with the volume ratio of chloroform to methanol of 1:0-1:1, and the same fractions are combined to obtain six sections of fractions which are respectively named as fractions Fr.I-VI; recrystallizing the fraction Fr.II to obtain a recrystallization mother liquor and isocorydine.
In the invention, the silica gel used in the mixing is preferably 100-200 mesh silica gel, and the mass ratio of the total alkaloids of the golden dragon alkaloid to the silica gel is preferably 1:2 during the mixing. In the present invention, the packing of the silica gel column is preferably 200 to 300 mesh silica gel.
In the present invention, the first column chromatography separation is preferably performed under room temperature conditions. The first column chromatographic separation is preferably: the volume ratio is 1:0, 40: 1. 20: 1. 10: 1. 5: 1. gradient elution was performed with a 1:1 chloroform-methanol system. The 10 column volumes were eluted separately for each ratio, and the eluents were then combined for each ratio. The obtained eluate was subjected to Thin Layer Chromatography (TLC), and based on the result of the thin layer chromatography, the same fractions were combined to obtain six fractions, which were named fraction fr.i, fraction fr.ii, fraction fr.iii, fraction fr.iv, fraction fr.v and fraction fr.vi, respectively. In the present invention, the concentration is preferably concentration under reduced pressure.
The fraction Fr.II is recrystallized to obtain recrystallization mother liquor and isocorydine. In the present invention, the solvent for recrystallization is preferably methanol, the recrystallization is preferably evaporative crystallization, and the number of times of recrystallization is preferably 2. In the present invention, the specific embodiment of the recrystallization is preferably: dissolving the fraction Fr.II in methanol to obtain a fraction Fr.II solution; evaporating the fraction Fr.II solution at room temperature to remove the solvent, and evaporating the methanol to remove one third of the solvent to obtain a primary crystallization product; dissolving the crystallization product in methanol to obtain a primary crystallization product solution; and evaporating the primary crystallization product solution at room temperature to remove the solvent, and evaporating the methanol to remove one third of the solvent to obtain a crude product of isocorydine and a recrystallization mother liquor. In the invention, a methanol-water system with the volume percentage of 50% is preferably adopted to flush the crude product of the isocorydine, so as to obtain the pure product of the isocorydine.
After obtaining a recrystallization mother liquor, loading the recrystallization mother liquor to a first chromatographic column for second column chromatographic separation, wherein the second column chromatographic separation adopts a methanol-water system with the volume percent of 20-90% for gradient elution according to the volume percent of methanol from small to large, and the same fractions are combined to obtain four sections of fractions which are named as fractions Fr.II-1-II-4 respectively; loading the fraction Fr.II-3 to a first gel chromatographic column for third column chromatographic separation, performing isocratic elution on the third column chromatographic separation by adopting methanol, and combining the same fractions to obtain three sections of fractions which are named as fractions Fr.II-3-1-II-3-3 respectively; loading the fraction Fr.II-3-1 to a second chromatographic column for fourth column chromatographic separation, wherein the fourth column chromatographic separation adopts an acetonitrile-water system with the volume percentage of 20-35% to perform continuous gradient elution according to the volume percentage of acetonitrile to obtain the aporphine alkaloid compound with the structure shown in the formula 1.
In the present invention, the first chromatographic column is preferably an RP-18 medium pressure chromatographic column. The second column chromatographic separation is preferably carried out at room temperature. The second column chromatographic separation is as follows: sequentially adopting methanol-water systems with the volume percentage of 20%, 40%, 60%, 80% and 90% of methanol to carry out gradient elution. In the case of the gradient elution, the flow rate of the methanol-water system is preferably 30mL/min. The 8 column volumes were eluted separately for each ratio, and the eluents for each ratio were then combined. And carrying out thin-layer chromatography on the obtained eluent, merging the same fractions according to the thin-layer chromatography result, and concentrating to dryness to obtain four sections of fractions which are named as fraction Fr.II-1, fraction Fr.II-2, fraction Fr.II-3 and fraction Fr.II-4 respectively. In the present invention, the concentration is preferably concentration under reduced pressure.
The method comprises the steps of loading the fraction Fr.II-3 to a first gel chromatographic column for third column chromatography separation, performing isocratic elution on the third column chromatography by adopting methanol, and merging the same fractions to obtain three sections of fractions which are named as fractions Fr.II-3-1-II-3-3 respectively. In the present invention, the first gel column is preferably a gel Sephadex LH-20 column. The third column chromatography separation is preferably performed at room temperature. In the case of the isocratic elution, the flow rate of the methanol is preferably 0.5mL/min. And eluting 5 column volumes by using methanol, performing color band observation and thin layer chromatography analysis on the obtained eluent, merging the same fractions, and concentrating to dryness to obtain three sections of fractions which are named as fraction Fr.II-3-1, fraction Fr.II-3-2 and fraction Fr.II-3-3 respectively. In the present invention, the concentration is preferably concentration under reduced pressure.
The fraction Fr.II-3-1 is loaded to a second chromatographic column for fourth column chromatographic separation, and the fourth column chromatographic separation is carried out by adopting an acetonitrile-water system with the volume percentage of 20-35% to carry out continuous gradient elution according to the volume percentage of acetonitrile to obtain the aporphine alkaloid compound with the structure shown in the formula 1. In the present invention, the second chromatography column is preferably a C18 column, and the fourth column chromatography separation is preferably performed at room temperature. The fourth column chromatographic separation is as follows: sequentially adopting an acetonitrile-water system with the acetonitrile volume percentage of 20% -35% to carry out continuous gradient elution for 45min. In the case of the gradient elution, the flow rate of the acetonitrile-water system is preferably 8mL/min. The invention collects the fraction with the retention time of 28min and then concentrates the fraction to be dried to obtain the aporphine alkaloid compound with the structure shown in the formula 1. In the present invention, the concentration is preferably concentration under reduced pressure.
After isocorydine is obtained, the isocorydine, manganese dioxide and an organic solvent are mixed for oxidation reaction, and a reaction liquid obtained after solid-liquid separation is used for removing the solvent to obtain an oxidation product; loading the oxidation product to a second gel chromatographic column for fifth column chromatographic separation, performing isocratic elution by adopting methanol, and combining the same fractions to obtain a fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in the formula 3; and respectively loading the fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and the fraction containing the aporphine alkaloid compound with the structure shown in the formula 3 into third chromatographic columns, and respectively carrying out sixth chromatographic separation, wherein the sixth chromatographic separation adopts an acetonitrile-water system with the volume percentage of acetonitrile from small to large to carry out continuous gradient elution to respectively obtain the aporphine alkaloid compound with the structure shown in the formula 2 and the aporphine alkaloid compound with the structure shown in the formula 3.
In the present invention, the organic solvent is preferably methylene chloride. The mass ratio of the isocorydine to the manganese dioxide is preferably 2:5. The oxidation reaction is carried out at room temperature, the time of the oxidation reaction is preferably 2 hours, and the oxidation reaction is carried out under stirring. The present invention preferably employs TLC to detect completion of the oxidation reaction. In the present invention, the solid-liquid separation is preferably filtration. The invention preferably adopts a reduced pressure evaporation mode to remove the solvent to obtain the oxidation product.
After an oxidation product is obtained, the oxidation product is loaded to a second gel chromatographic column for fifth column chromatographic separation, methanol is adopted for isocratic elution in the fifth column chromatographic separation, and the same fractions are combined to obtain a fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in the formula 3. In the present invention, the second gel chromatographic column is preferably a gel Sephadex LH-20 chromatographic column. The fifth column chromatography separation is preferably performed at room temperature. In the case of the isocratic elution, the flow rate of the methanol is preferably 0.5mL/min. Eluting 5 column volumes with methanol, performing color band observation and thin layer chromatography detection on the obtained eluent, combining the same fractions, and concentrating to dryness to obtain a fraction containing the aporphine alkaloid compound with the structure shown in formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in formula 3. In the present invention, the concentration is preferably concentration under reduced pressure.
The method comprises the steps of respectively loading a fraction containing an aporphine alkaloid compound with a structure shown in a formula 2 and a fraction containing an aporphine alkaloid compound with a structure shown in a formula 3 into a third chromatographic column, respectively carrying out sixth column chromatographic separation, and carrying out gradient elution on the sixth column chromatographic separation according to the acetonitrile volume percentage from small to large by adopting an acetonitrile-water system with a volume percentage of 50-65% to respectively obtain the aporphine alkaloid compound with the structure shown in the formula 2 and the aporphine alkaloid compound with the structure shown in the formula 3. In the present invention, the third column is preferably a C18 column, and the sixth column chromatographic separation is preferably performed at room temperature. The sixth column chromatographic separation is as follows: sequentially adopting an acetonitrile-water system with the acetonitrile volume percentage of 50% -65% to carry out continuous gradient elution for 45min. The flow rate of the acetonitrile-water system is preferably 8mL/min at the time of the continuous gradient elution. The aporphine alkaloid compound with the structure shown in the formula 2 is obtained by collecting fractions with retention time of 26min and concentrating the fractions to dryness. The invention collects the fraction with the retention time of 41min and then concentrates the fraction to be dried to obtain the aporphine alkaloid compound with the structure shown in the formula 3. In the present invention, the concentration is preferably concentration under reduced pressure.
The invention provides an aporphine alkaloid compound prepared by the technical scheme or the preparation method of the technical scheme or application of the aporphine alkaloid compound in preparing medicines of indoleamine 2, 3-dioxygenase and/or tryptophan 2, 3-dioxygenase mediated diseases in pharmaceutically acceptable salts, hydrates or solvent compounds.
In the present invention, the indoleamine 2, 3-dioxygenase 1 and/or tryptophan 2, 3-dioxygenase mediated diseases are diseases in which TDO and/or IDO1 expression or activity is significantly enhanced.
In the present invention, the indoleamine 2, 3-dioxygenase 1 and/or tryptophan 2, 3-dioxygenase mediated diseases include cancer or metabolic disorder diseases.
The cancer includes glioblastoma, head and neck cancer, mesothelioma, non-small cell lung cancer, bladder cancer, or breast cancer.
The metabolic disorder disease includes obesity.
The invention provides a pharmaceutical composition, which comprises a pharmaceutical active component and a pharmaceutically acceptable carrier;
the pharmaceutical active component comprises the aporphine alkaloid compound prepared by the technical scheme or the aporphine alkaloid compound prepared by the preparation method of the technical scheme or pharmaceutically acceptable salt of the aporphine alkaloid compound.
The kind of the pharmaceutically acceptable carrier is not particularly limited in the present invention, and may be any kind known to those skilled in the art.
In the invention, the mass percentage of the aporphine alkaloid compound or the pharmaceutically acceptable salt thereof in the pharmaceutical composition is more than or equal to 10%, more preferably more than or equal to 20%, and most preferably more than or equal to 50%. .
The present invention is not limited in any particular manner to the form of administration of the pharmaceutical composition, and forms of administration known to those skilled in the art may be employed.
In the present invention, the route of administration of the pharmaceutical composition is preferably oral or non-oral. The daily dosage is preferably 1 to 1000mg. When the route of administration is oral, the pharmaceutical composition also preferably comprises pharmaceutically acceptable adjuvants; the pharmaceutical auxiliary agent preferably comprises one or more of excipient, disintegrating agent, binder, lubricant, antioxidant, coating agent, colorant, flavoring agent and surfactant; the mass percentage of the medicinal auxiliary agent in the pharmaceutical composition is preferably more than or equal to 10%, more preferably more than or equal to 20%, and most preferably more than or equal to 50%; the pharmaceutical composition is preferably administered in the form of granules, capsules or tablets. When the route of administration is parenteral, the pharmaceutical composition is preferably administered in the form of an injection, infusion or suppository. As one or more embodiments of the present invention, the pharmaceutically acceptable carrier preferably includes one or more of a-lactose monohydrate, starch, and cellulose.
The technical solutions provided by the present invention are described in detail below with reference to the drawings and examples for further illustrating the present invention, but they should not be construed as limiting the scope of the present invention.
Example 1
Drying radix Dactylicapni (D.scandens) sample 10kg, pulverizing, leaching with methanol at room temperature for 4 times, each time with solvent amount (volume) 10 times of sample mass, each time for 2 days, and recovering the extractive solution under reduced pressure to obtain total extract. Dissolving the total extract completely with 0.5% HCl solution, adjusting pH to 2-3, extracting with equal volume of ethyl acetate for 3 times, mixing with rotary evaporator, concentrating under reduced pressure to obtain non-alkaloid component, and removing non-alkaloid component; adjusting pH of the acid water part to 7-8 with 10% ammonia water, extracting with equal volume of ethyl acetate for 3 times, combining ethyl acetate layers, and concentrating under reduced pressure with a rotary evaporator to obtain radix Dactylicapni total alkaloids. Mixing with silica gel with the total alkaloid mass of twice 100-200 meshes, performing silica gel column chromatography with 200-300 meshes, performing gradient elution with chloroform-methanol (from 1:0, 40:1, 20:1, 10:1,5:1 to 1:1), detecting by TLC, and combining the same fractions to obtain six sections of fractions named fractions Fr.I-VI. Dissolving fraction Fr.II (80.0 g) with methanol, standing at room temperature, volatilizing the solvent for one third, crystallizing, dissolving the precipitated crystal with methanol again, standing at room temperature, volatilizing the solvent for one third, and precipitating pure isocorydine crystal again to obtain recrystallization mother liquor and isocorydine.
The recrystallization mother liquor is firstly eluted by 20 percent, 40 percent, 60 percent and 80 percent of methanol water sequentially through an RP-18 medium-pressure chromatographic column, detected by TLC, four sections of fractions are obtained by combining the same fractions, which are named as fractions Fr.II-1 to II-4, the fraction Fr.II-3 is eluted by methanol through a gel Sephadex LH-20 chromatographic column, observed by a color band and detected by thin layer chromatography, and is combined into three sections of fractions, which are named as fractions Fr.II-3-1 to II-3-3, the fraction Fr.II-3-1 is purified by HPLC (C18 preparation column, gradient elution is carried out for 45min by 20 to 35 percent acetonitrile), and the fraction with the retention time of 28min peak is collected, thus obtaining the pure aporphine alkaloid compound (4.0 mg) with the structure shown in the formula 1.
An aporphine alkaloid compound of the structure shown in formula 1: a dark green powder; ultraviolet spectrum (MeOH) lambda (max): 241,312,405,588nm; high resolution mass spectrum HRESIMS m/z 374.0999[ M+Na ]] + Molecular formula C 20 H 17 NO 51 HNMR(500MHz,methanol-d 4 )δppm 8.21(d,J=6.2Hz,1H,H-5),8.13(d,J=8.8Hz,1H,H-8),7.90(d,J=6.2Hz,1H,H-4),7.24(d,J=8.8Hz,1H,H-9),7.19(s,1H,H-3),4.66(s,3H,N-CH 3 ),4.09(s,3H,1-OCH 3 ),4.01(s,3H,10-OCH 3 ),3.76(s,3H,11-OCH 3 ). 13 C NMR(125MHz,methanol-d 4 )δ178.2(s,C-7),170.0(s,C-2),164.5(s,C-1),158.5(s,C-10),146.6(s,C-11),140.5(s,C-3a),138.1(d,C-5),131.5(s,C-11a),129.7(s,C-6a),128.9(s,C-7a),127.0(s,C-1b),124.9(d,C-8),122.6(d,C-4),112.2(d,C-9),105.9(s,C-1a),104.1(d,C-3),60.4(q,11-OCH 3 ),57.0(q,1-OCH 3 ),56.7(q,10-OCH 3 ),49.5(q,N-CH 3 ).HRESIMS m/z 374.0999[M+Na] + (calc.for C 20 H 17 NO 5 Na,374.0999)。
Example 2
Isocorydine (20 mg,29.32 mmol) prepared in example 1 was dissolved in 2mL of methylene chloride, and MnO was added thereto 2 (50 mg,290.69 mmol) was stirred at room temperature for 2h (oxidation scheme shown in FIG. 1), TLC was monitored to complete the reaction, and the mixture was filtered to remove unreacted MnO 2 The solvent was evaporated under reduced pressure, and after eluting with methanol, the fractions were combined to obtain a fraction containing the aporphine alkaloid compound of the structure shown in formula 2 and a fraction containing the aporphine alkaloid compound of the structure shown in formula 3, which were purified by HPLC (C18 column 50-65% acetonitrile water was eluted for 45 min), and the fraction having a retention time of 26min was collected to obtain an aporphine alkaloid compound pure product (2.5 mg) of the structure shown in formula 2, and the fraction having a retention time of 41min was collected to obtain an aporphine alkaloid compound pure product (2.0 mg) of the structure shown in formula 3.
An aporphine alkaloid compound of the structure shown in formula 2: blue-green powder; ultraviolet spectrum (MeOH)
(max) 232,270,344,398,594nm; mass spectrum ESIMS m/z 685.2526[ M+Na ]] + Molecular formula C 39 H 38 N 2 O 8 . Nuclear magnetic data: 1 H NMR(500MHz,methanol-d 4H 7.71(s,1H),7.36(d,J=8.3Hz,1H),7.15(d,J=8.3Hz,1H),7.07(s,1H),6.72(s,1H),4.76(s,1H),3.93(s,3H),3.86(s,3H),3.73(s,3H),3.70(s,3H),3.62(m,2H),3.53(s,3H),3.47(s,3H),3.21(dd,J=13.2,3.4Hz,1H),3.14(m,2H),3.02(m,1H),3.02(m,1H),2.99(m,1H),2.88(dd,J=12.5,3.4Hz,1H),2.64(d,J=15.8,1H),2.48(m,1H),2.39(t,J=13.2Hz,1H),2.54(s,3H). 13 C NMR(125MHz,methanol-d 4C 186.6,178.9,170.7,154.5,153.6,153.3,152.0,146.8,144.4,139.6,138.7,131.9,131.2,130.0,129.9,129.5,127.1,127.0,124.6,118.5,118.1,113.6,113.0,112.9,103.6,101.9,64.5,61.4,60.7,56.8,56.6,56.3,53.9,51.3,44.0,40.5,35.8,29.5,29.2.
an aporphine alkaloid compound of the structure shown in formula 3: blue-green powder; ultraviolet spectrum (MeOH)
(max) 232,311,343,398,588nm; mass spectrum ESIMS m/z 1000.4042[ M-H ]] - Molecular formula C 59 H 59 N 3 O 12 The method comprises the steps of carrying out a first treatment on the surface of the Nuclear magnetic data: 1 H NMR(600MHz,methanol-d 4H :7.77(s,1H),7.25(s,1H),7.16(s,1H),7.15(s,1H),6.91(s,1H),6.78(s,1H),4.96(s,1H),4.02(s,3H),4.00(s,3H),3.98(s,3H),3.93(s,3H),3.78(s,3H),3.77(s,3H),3.69(m,2H),3.62(s,3H),3.56(s,3H),3.24(m,1H),3.18(m,1H),3.03(m,1H),2.96(m,2H),2.95(m,2H),2.84(overlap,2H),2.78(m,1H),2.69(m,2H),2.49(m,2H),2.27(s,6H),2.13(m,2H). 13 C NMR(125MHz,methanol-d 4C :186.6,179.4,166.3,154.6,153.7,153.3,153.2,153.0,151.6,150.2,144.6,144.5,144.3,139.8,139.0,131.6,131.3,130.9,130.7,130.0,129.7,129.6,129.5,128.8,127.2,126.6,124.7,123.8,121.5,118.6,118.1,114.6,114.0,113.7,112.9,112.8,103.6,101.9,64.2,64.0,62.3,61.5,60.7,56.9,56.9,56.8,56.5,56.3,53.7,53.5,51.4,43.7,43.5,40.6,33.2,33.1,29.6,29.4,29.0.
test example 1
Cloning and inducible expression of the genes IDO1 (uniprot ID: P14202), TDO (uniprot ID: P48775): the optimized DNA fragment of the human IDO1 is amplified by in vitro PCR and is constructed into a vector pET28 a. The correctness of the insert and the constructed vector is determined by genetic sequencing. After the sequencing results were correct, the plasmid was transformed into BL21 (DE 3) E.coli for protein expression and purification. The expression and purification process of the protein is as follows: the transformed E.coli was selected and cultured overnight in LB medium in a shaker at 37 ℃. The next day the bacterial liquid is amplified into 1L LB culture medium, and when the bacterial liquid grows to OD600 in logarithmic growth phase: 0.6-0.8, 5-aminolevulinic acid (ALA) (final concentration 0.5 mM) was added to adjust the rotation speed to 120rpm, IPTG (final concentration 0.5 mM) was added after half an hour, and cells were collected after induction at 30℃for 6 hours. After the thalli are mixed and resuspended, the thalli are crushed under ice bath condition until the cell suspension is nearly clear, the protein solution is separated from the sediment by high-speed centrifugation at 4 ℃, and the protein expression quantity in the supernatant is detected by SDS-PAGE electrophoresis. TDO gene cloning and induced expression are identical to IDO1.
Purification and concentration measurement of protein: the protein solution contains fusion protein IDO1, and as the N end of the vector pET28a is provided with a His-tag fusion tag, the fusion protein IDO1 is provided with the His-tag and can be combined with metal ion Ni 2+ The special interaction occurs, and the fusion protein IDO1 is adsorbed on a nickel column by utilizing the characteristics of the protein surface, so that the protein is separated and purified. To increase the protein purity, molecular sieve Superdex G75 was further used for purification. Finally, the purity of the protein reaches more than 95 percent through SDS-PAGE identification. TDO protein was purified as IDO1.
IDO1, TDO protein concentration determination: the purified protein concentration was measured by BCA ProteinAssay Kit using a bovine serum protein standard curve as a reference. In each detection process, different dilution concentrations are used for simultaneous detection, so that errors in the concentration detection process are ensured.
Enzymatic activity reaction system: the reaction system is 80 mu L, and the final concentration of each component is respectively as follows: 50mM potassium phosphate buffer (Ph 6.5), 40mM ascorbic acid, 200. Mu.g/mL catalase, 20uM methylene blue, 300uM substrate L-tryptophan. The final concentration of DMSO was controlled to within 2%. Enzyme was added to the system, preheated in an oven at 37℃for five minutes, and then the compound was added to react in a buffer for 30 minutes. The compound concentrations were: 0. Mu.M, 0.064. Mu.M, 0.320. Mu.M, 1.600. Mu.M, 8.000. Mu.M, 40.000. Mu.M. After the subsequent addition of 30% (w/v) trichloroacetic acid (TCA), the reaction was terminated by heating at 65℃for 15 minutes. And the reaction mixture was centrifuged at 12000rpm for 10min. The supernatant was transferred to 96-well microplates and added to acetic acid 2% (w/v) of p-Dimethylaminobenzaldehyde (DMAB) was added. Kynurenine concentration was determined by measuring absorbance at 490nm using a Bio-Rad microplate reader. Determination of enzyme IC by nonlinear regression analysis using GraphPad Prism 8.0.1 50 Values.
Experimental results: half inhibition concentration of compound experimental steps such as enzyme activity experiments, the compound concentration is set as follows: 0. 0.064, 0.320, 1.600, 8.000, 40.000 μm. As shown in Table 1, the results of the enzymatic IDO1/TDO inhibitory activity of the compounds are shown in Table 1, and it is clear from Table 1 that the aporphine alkaloid compounds of the structures shown in formula 1, formula 2 or formula 3 prepared in example 1 are IDO1/TDO dual-selective inhibitors, and the aporphine alkaloid compounds of the structures shown in formula 1 are the most effective.
TABLE 1 inhibitory Activity of aporphine alkaloid compounds prepared in example 1
Test example 2: characterization in combination with IDO1 and TDO
Nuclear magnetic resonance saturation transfer differential spectroscopy (NMR STD) techniques are commonly used to detect protein-ligand interactions. If the ligand binds to the protein, saturation occurs through intermolecular 1 H- 1 H cross-relaxation is transferred to the ligand and appears as a complete decrease in intensity. Thus, NMR STD spectra may only show ligand signals in intimate contact with the protein. The reference spectrum of the aporphine alkaloid compound of the structure shown in formula 1 alone (C in fig. 2) and its STD spectrum in the presence of IDO1 (a in fig. 2) and TDO (B in fig. 2) are shown in fig. 2. The amplified STD spectra showed H-3, H-4, H-5, H-8, H-9, 1-OCH 3 、10-OCH 3 And 11-OCH 3 Protons have a pronounced STD signal, indicating that these hydrogen atoms may bind to IDO1 and TDO. H-8, 10-OCH 3 And 11-OCH 3 The strongest proton intensity in the NMR STD spectrum indicates tighter binding to the protein. It was inferred from this that the hydrogen proton at the 8-position was most closely bound to the methoxy hydrogen atom at the C-10 and C-11 positions and the protein. The NMR STD results further confirm that the structure of aporphine shown in FIG. 1The alkaloid-like compounds are directly bound to IDO1 (a) and TDO (B), respectively. Important groups are also derived that bind and interact intimately with the protein.
Example 3
Preparation of sulfate:
the 3 aporphine alkaloid compounds with chemical structures prepared in the example 1 are respectively added with sulfuric acid ethanol solution with the mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain the sulfate of the aporphine alkaloid compound.
Example 4
Preparation of hydrochloride:
the 3 aporphine alkaloid compounds with chemical structures prepared in example 1 are respectively added with hydrochloric acid ethanol solution with mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain the hydrochloride of the aporphine alkaloid compound.
Example 5
Preparation of phosphate:
The 3 aporphine alkaloid compounds with chemical structures prepared in example 1 are respectively added with phosphoric acid solution with mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain the phosphate of the aporphine alkaloid compound.
Example 6
Preparation of tartrate:
the 3 aporphine alkaloid compounds with chemical structures prepared in example 1 are respectively added with tartaric acid solution with mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain tartrate of the aporphine alkaloid compound.
Example 7
Preparation of citrate:
the 3 aporphine alkaloid compounds with chemical structures prepared in example 1 are respectively added with citric acid solution with mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain the citrate of the aporphine alkaloid compound.
Example 8
Preparation of formate:
the 3 aporphine alkaloid compounds with chemical structures prepared in example 1 are respectively added with formic acid solution with mass concentration of 4% to pH=4, filtered, and the filtrate is dried to obtain formate of the aporphine alkaloid compound.
Example 9
Preparation of oxalate:
the 3 aporphine alkaloid compounds with chemical structures prepared in the example 1 are respectively added with oxalic acid solution with the mass concentration of 4% to the pH value of 4, filtered, and the filtrate is dried to obtain oxalic acid salt of the aporphine alkaloid compound.
Example 10
Preparation of injection:
the salt prepared in examples 2 to 8 was added with water for injection, finely filtered, filled and sterilized to obtain an injection.
Example 11
Preparation of powder injection:
dissolving the salt prepared in the examples 2-8 in sterile water for injection, stirring until the salt is dissolved, filtering by using a sterile suction filter funnel, performing sterile fine filtration, packaging in an ampoule, performing low-temperature freeze drying, and performing sterile sealing to obtain the powder injection.
Example 12
Preparation of the powder:
the salt prepared in example 2 was mixed with excipients in a mass ratio of 9:1 to give a powder.
Wherein the excipient is a-lactose monohydrate.
Example 13
Preparation of tablets:
the salt prepared in examples 2 to 8 was mixed with an excipient at a mass ratio of 1:10, and tabletted to obtain tablets.
Wherein the excipient is cellulose.
Example 14
The salt prepared in example 3 and the excipient are mixed according to the mass ratio of 5:1, and the salt prepared in examples 2-8 and the excipient are prepared into capsules, granules or medicinal granules.
Wherein the excipient is starch.
Example 15
The salt prepared in example 4 and the excipient are mixed according to the mass ratio of 3:1, and the salt prepared in examples 2-8 and the excipient are prepared into capsules, granules or medicinal granules.
Although the foregoing embodiments have been described in some, but not all embodiments of the invention, other embodiments may be obtained according to the present embodiments without departing from the scope of the invention.

Claims (6)

1. An aporphine alkaloid compound is characterized by comprising the following structure:
2. the pharmaceutically acceptable salt of the aporphine alkaloid compound of claim 1, wherein the pharmaceutically acceptable salt of the aporphine alkaloid compound comprises an inorganic acid salt and/or an organic acid salt;
the inorganic acid salt comprises one or more of hydrochloride, hydrobromide, nitrate, sulfate and phosphate;
the organic acid salt comprises one or more of tartrate, citrate, formate, acetate and oxalate.
3. The process for preparing an aporphine alkaloid compound of claim 1, comprising the steps of:
(1) Leaching dactylicapnos with methanol, and concentrating the obtained leaching solution to obtain an extract; the leaching times are 4 times, the leaching temperature is normal temperature, the time of each leaching is 2 days, and the ratio of the mass of the dactylicapnos root to the volume of the polar solvent in each leaching is 1kg:10L;
(2) Dispersing the extract in a hydrochloric acid solution, wherein the mass percentage of the hydrochloric acid solution is 0.5%, performing first extraction on the obtained acidic solution by using first ethyl acetate, and obtaining a first ethyl acetate phase and a first water phase, wherein the pH value of the acidic solution is 2-3; the pH value of the first aqueous phase is regulated to 7-8, and then second extraction is carried out by using second ethyl acetate, so as to obtain a second ethyl acetate phase; concentrating the second ethyl acetate phase to obtain total alkaloids of dactylicapnos root; the first extraction and the second extraction are both equal-volume extraction, and the times of the first extraction and the second extraction are both 3 times;
(3) Mixing the dactylicapnos root alkaloid total alkali and silica gel, wherein the silica gel used in the mixing is 100-200 meshes silica gel, and the mass ratio of the dactylicapnos root alkaloid total alkali to the silica gel is 1:2 during the mixing; loading the obtained mixture to a silica gel column for first column chromatographic separation, wherein the packing of the silica gel column is 200-300 meshes of silica gel, the first column chromatographic separation adopts chloroform-methanol system with the volume ratio of chloroform to methanol of 1:0-1:1 for gradient elution according to the volume ratio of the silica gel column to the silica gel column, and the same fractions are combined to obtain six sections of fractions which are respectively named as fractions Fr.I-Fr.VI; recrystallizing the fraction Fr.II to obtain a recrystallization mother liquor and isocorydine;
(4) Loading the recrystallization mother liquor to a first chromatographic column for second column chromatographic separation, wherein the first chromatographic column is RP-18 medium-pressure chromatographic column, the second column chromatographic separation adopts a methanol-water system with the volume percent of 20-90% for gradient elution according to the volume percent of methanol from small to large, and the same fractions are combined to obtain four sections of fractions which are named as fractions Fr.II-1-Fr.II-4 respectively; loading the fraction Fr.II-3 to a first gel chromatographic column for third column chromatographic separation, wherein the third column chromatographic separation adopts methanol for isocratic elution, and the same fractions are combined to obtain three sections of fractions which are named as fractions Fr.II-3-1 to Fr.II-3-3 respectively; loading the fraction Fr.II-3-1 to a second chromatographic column, and performing fourth column chromatographic separation, wherein the fourth column chromatographic separation is performed by adopting an acetonitrile-water system with the volume percentage of 20-35% to perform continuous gradient elution according to the volume percentage of acetonitrile to obtain an aporphine alkaloid compound with the structure shown in the formula 1;
(5) Mixing the isocorydine, manganese dioxide and an organic solvent for oxidation reaction, and removing the solvent from the reaction liquid obtained after solid-liquid separation to obtain an oxidation product; loading the oxidation product to a second gel chromatographic column for fifth column chromatographic separation, wherein methanol is adopted for isocratic elution in the fifth column chromatographic separation, and the same fractions are combined to respectively obtain a fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and a fraction containing the aporphine alkaloid compound with the structure shown in the formula 3; respectively loading the fraction containing the aporphine alkaloid compound with the structure shown in the formula 2 and the fraction containing the aporphine alkaloid compound with the structure shown in the formula 3 into third chromatographic columns, respectively carrying out sixth column chromatographic separation, and carrying out continuous gradient elution by adopting an acetonitrile-water system with the volume percentage of acetonitrile from small to large to obtain the aporphine alkaloid compound with the structure shown in the formula 2 and the aporphine alkaloid compound with the structure shown in the formula 3;
The second chromatographic column and the third chromatographic column are both C18 columns; the first gel chromatographic column and the second gel chromatographic column are gel Sephadex LH-20 chromatographic columns;
there is no chronological limitation between said step (4) and said step (5).
4. Use of an aporphine alkaloid compound according to claim 1 or an aporphine alkaloid compound prepared by the preparation method according to claim 3 or an aporphine alkaloid compound according to claim 2 in the preparation of a pharmaceutically acceptable salt for the treatment of indoleamine 2, 3-dioxygenase 1 and/or tryptophan 2, 3-dioxygenase mediated diseases.
5. A pharmaceutical composition comprising a pharmaceutically active ingredient and a pharmaceutically acceptable carrier;
the pharmaceutically active component comprises an aporphine alkaloid compound prepared by the preparation method of claim 1 or an aporphine alkaloid compound prepared by the preparation method of claim 3 or a pharmaceutically acceptable salt of the aporphine alkaloid compound of claim 2.
6. The pharmaceutical composition according to claim 5, wherein the mass percentage of the pharmaceutically active component in the pharmaceutical composition is not less than 10%.
CN202310237740.6A 2023-03-14 2023-03-14 Aporphine alkaloid compound and preparation method and application thereof Active CN116375644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310237740.6A CN116375644B (en) 2023-03-14 2023-03-14 Aporphine alkaloid compound and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310237740.6A CN116375644B (en) 2023-03-14 2023-03-14 Aporphine alkaloid compound and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN116375644A CN116375644A (en) 2023-07-04
CN116375644B true CN116375644B (en) 2024-01-16

Family

ID=86964795

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310237740.6A Active CN116375644B (en) 2023-03-14 2023-03-14 Aporphine alkaloid compound and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN116375644B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1923813A (en) * 2005-08-31 2007-03-07 中国科学院上海药物研究所 Aporphine and use of oxidized aporphine alkaloid
CN109806259A (en) * 2019-02-28 2019-05-28 中国科学院昆明植物研究所 Application of the proto-berberine compounds with TDO selective inhibitory activity in pharmacy
CN109824753A (en) * 2018-11-20 2019-05-31 中国科学院昆明植物研究所 Tanshinone IIA derivative with IDO/TDO double selectivity inhibitory activity
CN115490637A (en) * 2022-06-21 2022-12-20 海南医学院 Preparation method and application of aporphine alkaloid compound

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1923813A (en) * 2005-08-31 2007-03-07 中国科学院上海药物研究所 Aporphine and use of oxidized aporphine alkaloid
CN109824753A (en) * 2018-11-20 2019-05-31 中国科学院昆明植物研究所 Tanshinone IIA derivative with IDO/TDO double selectivity inhibitory activity
CN109806259A (en) * 2019-02-28 2019-05-28 中国科学院昆明植物研究所 Application of the proto-berberine compounds with TDO selective inhibitory activity in pharmacy
CN115490637A (en) * 2022-06-21 2022-12-20 海南医学院 Preparation method and application of aporphine alkaloid compound

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M.-F. Bao et al..Discovery and biological evaluation of a new type of dual inhibitors of indoleamine 2,3-dioxygenase 1 and tryptophan 2,3-dioxygenase from ethnomedicinal plant Dactylicapnos scandens.Phytochemistry.2023,第214卷113794. *

Also Published As

Publication number Publication date
CN116375644A (en) 2023-07-04

Similar Documents

Publication Publication Date Title
CN107986951B (en) Novel topoisomerase I inhibitor, pharmaceutical composition thereof, preparation method and application thereof
CN108484699B (en) Bipyridine alkaloid, preparation method and application thereof
WO2017220042A2 (en) Amrinone pharmaceutical composition and application thereof in hypertension treatment
Luo et al. Isolation, synthesis and bioactivity evaluation of isoquinoline alkaloids from Corydalis hendersonii Hemsl. against gastric cancer in vitro and in vivo
CN113563409B (en) Natural triterpene-iridoid glycoside dimer heterocomplex, preparation method thereof and application thereof in preparation of ACL inhibitor
CN101993370A (en) Glaucocalyxin A acid ester derivative as well as preparation method and application of Glaucocalyxin A acid ester derivative
CN107445952B (en) Method for extracting gladiolide and coptisine and application
Men et al. Chemical constituents and ACE inhibitory activity of desert plant Suaeda physophora Pall.
CN116375644B (en) Aporphine alkaloid compound and preparation method and application thereof
CN101612183B (en) Glaucescent fissistigma root saponin extract, pharmaceutical composition and preparation method and application thereof
CN102050832B (en) Melonines bisindole compound, medicine composition, preparation method and application thereof
CN115154453B (en) Application of aspulvinone compound in preparation of antidiabetic drugs
CN109810113A (en) A kind of alkaloid compound and the preparation method and application thereof
CN113679727B (en) Use of natural triterpene-iridoid glycoside dimer hybrid in preparation of acetyl coenzyme A carboxylase1 inhibitor
CN113214214B (en) Preparation method and application of terpenoid in Atractylodes lancea
CN101993359A (en) Fatty acid derivative of glaucocalyxin A, as well as preparation method and applications thereof
CN112979640B (en) Alkaloid dimer compound and application thereof in preparation of PD-1/PD-L1 pathway inhibitor
CN110256468B (en) Bisindole alkaloid compound or pharmaceutically acceptable salt thereof, and preparation method and application thereof
CN110498805B (en) Bis-furoxanthone and bis-furoanthraquinone compounds, and preparation method and application thereof
EP2999480B1 (en) Extract of hippeastrum papilio rich in galanthamine
CN101851271A (en) Glaucocalyxin D derivative, preparation method and application thereof
CN115073481B (en) Furana quebracho base dimer or pharmaceutically acceptable salt thereof, and preparation method and application thereof, and pharmaceutical composition
WO2017220051A2 (en) Benserazide hydrochloride pharmaceutical composition and medical use thereof for lowering blood sugar
CN109678873B (en) Coumarin compound and preparation method and application thereof
CN115991687B (en) Diisopentenyl substituted aspulvinone compound and preparation method and application thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant