Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
  • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
  • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
  • C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur 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
  • C07D333/38—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
  • A61P35/02—Antineoplastic agents specific for leukemia
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C231/00—Preparation of carboxylic acid amides
  • C07C231/02—Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C233/00—Carboxylic acid amides
  • C07C233/57—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of rings other than six-membered aromatic rings
  • C07C233/60—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of rings other than six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C233/00—Carboxylic acid amides
  • C07C233/64—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
  • C07C233/67—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
  • C07C233/74—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a ring other than a six-membered aromatic ring
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
  • C07C235/42—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton
  • C07C235/44—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton with carbon atoms of carboxamide groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring
  • C07C235/54—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton with carbon atoms of carboxamide groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a ring other than a six-membered aromatic ring
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D213/00—Heterocyclic 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
  • C07D213/02—Heterocyclic 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
  • C07D213/04—Heterocyclic 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
  • C07D213/60—Heterocyclic 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
  • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
  • C07D213/81—Amides; Imides
  • C07D213/82—Amides; Imides in position 3
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
  • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
  • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
  • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
  • C07D307/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
  • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
  • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
  • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
  • C07D307/68—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J63/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms
  • C07J63/008—Expansion of ring D by one atom, e.g. D homo steroids

Definitions

• the present invention belongs to the field of natural medicines and medicinal chemistry and relates to novel oleanolic acid derivatives, particularly oleanolic acid derivatives of amidation at the C-17 position, and methods for preparing the same, compositions comprising the same, and Use in the preparation of anti-tumor drugs. Background technique
• Oleanolic acid also known as earthworm, is a pentacyclic triterpenoid. It is extracted from the leaves and fruits of plants such as Hibiscus, Gentianaceae, Rubiaceae, and Polygonaceae, mainly in free form and/or in combination with sugar. Many scientists at home and abroad have done extensive research on pentacyclic triterpenoids. According to reports in the literature, oleanolic acid and its derivatives, analogs have a variety of biological activities, such as anti-inflammatory, anti-tumor, anti-virus, regulate immune function, inhibit platelet aggregation, reduce blood fat and protect liver, protect kidney, anti-HIV Wait. Li Yingxia et al .
• oleanolic acid has an anti-human lung cancer cell proliferation, invasion and induction of apoptosis.
• the researchers measured the effect of oleanolic acid on the invasion ability of PGCL3 cells by cell proliferation inhibition assay and soft agar colony formation assay. The results showed that oleanolic acid could decrease the proliferation of PGCL3 cells in a dose-dependent manner, and it had anti-PGCL3 human lung cancer cell proliferation and invasion, and induced apoptosis of PGCL3 cells. Its anti-invasive mechanism is not to block a certain part of the invasion, but to inhibit the basic links of the invasion.
• oleanolic acid has a concentration-dependent effect on apoptosis of human lung adenocarcinoma cells.
• Lin Xiukun et al reported that oleanolic acid and its pharmaceutical preparations have excellent anti-pancreatic cancer effects, which have obvious inhibitory activity against human pancreatic cancer cells in vitro, and have significant effects on tumor cells of tumor cells. Antitumor activity.
• Lin Xiukun et al also studied the inhibitory effect of oleanolic acid on cervical cancer. The results showed that oleanolic acid and its pharmaceutical preparations have obvious inhibitory activity against human cervical cancer cells in vitro, and have obvious antitumor activity against transplanted tumor cells of tumor cells.
• Oleanolic acid is widely used in clinical practice due to its various pharmacological activities and low toxicity, but the bioavailability of such drugs in humans is low, so the development of high-efficiency and low-toxic oleanolic acid derivatives is good.
• the present invention aligns the C-17 position of the terminal acid with an amino group modification and introduces a functional group to enhance its biological activity and availability.
• the method of the present invention and the amine-substituted oleanolic acid amidated derivative at the C-17 position have not been reported in the literature. Summary of the invention
• One of the objects of the present invention is to provide a novel oleanolic acid amidated derivative of the formula (I) or a pharmaceutically acceptable salt thereof:
• R is selected from H, optionally substituted C 3 -C 7 cycloalkyl or cycloalkenyl, optionally substituted aryl, optionally substituted heterocyclic or heteroaryl, optionally substituted aryl-ethylene group, optionally substituted heteroaryl - vinyl, the optionally substituted substituents are selected from halo, nitro, cyano, amino, hydroxy, mercapto, 3 ⁇ 4 ⁇ , dC 6 alkyl, dC 6 alkylamino , dC 6 alkoxy, dC 6 alkyl gram base.
• a second object of the present invention is to provide a process for the preparation of the oleanolic acid amidated quinone of the general formula (I) of the present invention:
• a third object of the present invention is to provide a pharmaceutical composition comprising a compound of the present invention, the pharmaceutical composition comprising at least one compound of the present invention, and optionally a pharmaceutically acceptable excipient.
• a fourth object of the present invention is to provide a use of a compound of the present invention or a pharmaceutical composition comprising the same for the preparation of a medicament, particularly an antitumor medicament. Accordingly, the present invention provides a method of treating a tumor patient comprising administering to a patient in need of treatment a therapeutically effective amount of One less compound of the invention.
• the tumor is particularly selected from the group consisting of leukemia, multiple myeloma, lymphoma, liver cancer, gastric cancer, breast cancer, cholangiocarcinoma, pancreatic cancer, lung cancer, colon cancer, osteosarcoma, melanoma, human cervical cancer, glioma, Nasopharyngeal cancer, laryngeal cancer, esophageal cancer, middle ear tumor, prostate cancer, etc.
• the invention also relates to compounds of the invention for use in the treatment of tumors. Detailed ways
• the present invention relates to a novel oleanolic acid amidated derivative of the formula (I) or a pharmaceutically acceptable salt thereof.
• R is selected from H, optionally substituted C 3 -C 7 cycloalkyl or cycloalkenyl, optionally substituted aryl, optionally substituted heterocyclic or heteroaryl, optionally substituted aryl-ethylene group, optionally substituted heteroaryl - vinyl, the optionally substituted substituents are selected from halo, nitro, cyano, amino, hydroxy, mercapto, 3 ⁇ 4 ⁇ , dC 6 alkyl, dC 6 alkylamino , dC 6 alkoxy, dC 6 alkyl gram base.
• R is the group optionally substituted by halogen, C r C 6 alkyl or C r C 6 alkoxy: aryl, heteroaryl, cycloalkyl, Heterocyclyl, arylvinyl, heteroaryl vinyl.
• the aryl group is a phenyl group.
• the heteroaryl group is a furyl group, a thiophene group, a p ratio H, and a p ratio of 0 ⁇ .
• the cycloalkyl group is a cyclopropyl group, a cyclopentyl group or a cyclohexyl group.
• heterocyclic group is tetrahydrofuranyl, Tetrahydrothiophenyl, piperidinyl, piperazinyl or morpholinyl.
• R is selected from the group consisting of an optionally substituted heteroaryl-vinyl group.
• the invention particularly preferably comprises the following compound of formula (I):
• the oleanolic acid amidated derivative of the present invention has anticancer activity. Compared with oleanolic acid itself, the anticancer activity of the oleanolic acid amidated derivative of the present invention is increased, for example, several times or even tens of times.
• alkyl refers to a straight or branched alkane group containing the specified number of carbon atoms.
• the alkyl group may contain 1 to 18 carbon atoms, for example, 1 to 12, 1 to 10, 1 to 8, 1 to 6, 1 to 5, 1 to 4 or 1 to 3 carbon atoms.
• alkane groups include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, t-butyl, n-pentyl, n-hexyl and n-octadecyl groups.
• C 3 -C 7 cycloalkyl or cycloalkenyl refers to a hydrocarbyl group of a 3-7 membered monocyclic ring system having a saturated or unsaturated ring.
• the C 3 -C 7 cycloalkyl or cycloalkenyl group may be a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopropenyl group, and a cyclohexenyl group.
• aryl refers to a monocarbocyclic aryl group or a fused or non-fused polycarbocyclic aryl group containing 6 to 14 (eg, 6 to 12, 6 to 10 carbon atoms) carbon atoms, in many In the case of a carbocyclic ring, only one carbocyclic ring is aromatic.
• the aryl group also includes an aryl group fused to a heterocyclic group. Examples of the aryl group are a phenyl group, a biphenyl group, a naphthyl group, a 5,6,7,8-tetrahydronaphthyl group, a 2.3-dihydrobenzofuranyl group and the like.
• heteroaryl refers to an aromatic ring group containing from 1 to 4 heteroatoms (eg 1, 2, 3 or 4 heteroatoms) as ring members in the ring. Heteroatoms refer to nitrogen, oxygen or sulfur.
• the heteroaryl group may be a monocyclic heteroaryl group having 5 to 7 ring atoms, or a bicyclic heteroaryl group having 7 to 11 ring atoms. As long as one ring of the bicyclic aryl group is an aromatic heterocyclic ring, the other may be aromatic or non-aromatic, hetero atom-containing or hetero atom-free.
• heteroaryl groups are, for example, pyrrolyl, pyrazolyl, imidazolyl, oxazolyl, pyridyl, pyrimidinyl, furyl, thienyl, Isoxazolyl, thiol and the like.
• heterocyclyl refers to a non-aromatic ring group containing from 1 to 4 heteroatoms (e.g., 1, 2, 3 or 4 heteroatoms) as ring members. Heteroatoms refer to nitrogen, oxygen or sulfur.
• the heterocyclic group may be a monocyclic heterocyclic group having 4 to 8 ring atoms (for example, a 4-7 membered ring, a 5-7 membered ring, a 5-6 membered ring), or a double ring having 7 to 1 ring atoms. Heterocyclic group.
• the heterocyclic group may be aromatic or non-aromatic.
• heterocyclic groups are azetidinyl, pyrrolidinyl, pyrrolinyl, tetrahydrofuranyl, dihydrofuranyl, piperazinyl, piperidinyl, morpholinyl, thiomorpholinyl, tetrahydropyran Base, tetrahydrothiol and the like.
• aryl-vinyl refers to a vinyl group substituted with an aryl group as described above.
• heteroaryl-vinyl refers to a vinyl group substituted with a heteroaryl group as described above.
• halogen means fluoro, chloro, bromo or iodo.
• alkylamino refers to an amino group substituted with one or two alkyl groups having the specified number of carbon atoms. .
• alkoxy refers to alkyl -O- wherein alkyl is as defined above.
• alkylthio refers to an alkyl-S- group wherein alkyl is as defined above.
• the term "pharmaceutically acceptable salts of the compounds of formula (I)" is an organic acid salt formed from an organic acid which forms a pharmaceutically acceptable anion; these organic acid salts include, but are not limited to, toluene Acid salt, methanesulfonate, malate, acetate, citrate, malonate, tartrate, succinate, benzoate, ascorbate, alpha-ketoglutarate, lactic acid Salts and (X-glycerol phosphates; suitable inorganic salts are also formed; these include, but are not limited to, hydrochlorides, sulfates, nitrates, bicarbonates and carbonates, phosphates, hydrobromides , hydroiodide, etc.
• compositions can be obtained using standard procedures well known in the art. For example, it is produced by reacting a sufficient amount of a basic compound with a suitable acid which provides a pharmaceutically acceptable anion.
• the eight chiral centers in the main structure of the oleanolic acid amidated derivative of the present invention have a stereochemical structure represented by the formula (I).
• the definitions and conventions for stereochemistry used herein generally follow MCGRAW-HILL DICTIONARY OF CHEMICAL TERMS (SP Parker, Ed. McGraw-Hill Book Company, New York, 1984); ELIEL, E. and WILEN, S., STEREOCHEMISTRY OF ORGANIC COMPOUNDS (John Wiley & Sons, Inc., New York, 1994).
• treating generally refers to obtaining the desired pharmacological and/or physiological effects.
• the effect # may completely or partially prevent the disease or its symptoms, may be prophylactic; and/or may be therapeutic based on partial or complete stabilization or cure of the disease and/or side effects due to the disease.
• treatment encompasses any treatment for a patient's condition, including: (a) prevention of a disease or condition that is predisposed to a disease or condition but has not yet been diagnosed; (b) inhibition of the symptoms of the disease, That is, to prevent its development; or (c) to alleviate the symptoms of the disease,
• the oleanolic acid amidated derivative of the formula (I) can be obtained by extracting and separating oleanolic acid from a natural medicinal material to form an ammoniated oleanolic acid intermediate (OA-NH 2 ) via Curtius Reaction, and then The intermediate is reacted with an organic acid, an organic acid chloride or an organic acid anhydride in the presence of a coupling reagent to form an oleanolic amidated derivative of the formula (I), wherein R in the formula (I)
• the definitions in the general formula (I) are the same.
• the above Curtius Reaction amination reaction generally first produces an azide intermediate in the presence of a base or an alkaline reagent. This azide intermediate decomposes into the ammoniated oleanolic acid intermediate (OA-NH 2 ) in the presence of heat and an acid or acidic reagent.
• OA-NH 2 ammoniated oleanolic acid intermediate
• the base used to form the azide intermediate can be, but is not limited to, an organic base.
• Triethylamine Triethylamine.
• the acid used to decompose the azide intermediate can be, but is not limited to, a mineral acid.
• sulfuric acid sulfuric acid.
• the azide reagent used in the Curtius Reaction can be an organic reagent or Inorganic reagents. For example: sodium azide, diphenyl azide.
• solvents used include, but are not limited to, polar solvents. For example, chloroform.
• the reaction temperature of the above amination reaction is generally 40. C to 120. C. For example: 100 °C. All of the above amidated organic acids, organic acid chlorides or organic acid anhydrides are commercially available.
• the amidation reaction is generally carried out in the presence of a condensing agent.
• the condensing agent here may be, but is not limited to, an organic condensing agent.
• 2-(7-azobenzotriazole) - hydrazine, hydrazine, hydrazine, ⁇ '-tetramethyluron hexafluorotate (HATU) benzotriazole-oxime, hydrazine, hydrazine ', ⁇ '-Tetramethylurea hexafluoroborate (HBTU), benzotriazole-1-yloxytris(dimethylamino)phosphonium hexafluoroate ( ⁇ ), benzotriene Azole, hydrazine, hydrazine, hydrazine, ⁇ '-tetramethyluronium hexafluoroborate (TBTU).
• HATU 2-(7-azobenzotriazole) - hydrazine,
• the amidation reaction is generally carried out in the presence of a base.
• the base here may be, but not limited to, an organic base.
• DIPEA hydrazine, hydrazine-diisopropylethylamine
• TEA triethylamine
• pyridine 4-dimethylaminopyridine (DMAP).
• the amidation reaction is generally carried out in a solvent or in the absence of a solvent.
• Solvents used include, but are not limited to, organic polar solvents. For example: dichloromethane (DCM), tetrahydrofuran (THF), N, N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and the like.
• the general operation of the amidation reaction may be, but not limited to, to an appropriate ratio of an organic acid, a base and a condensing agent to N-dimethylformamide (DMF).
• a solution of oleanolic acid intermediate (OA-NH 2 ) in N-dimethylformamide (DMF) was added.
• the obtained product was extracted with an organic solvent, washed with water and brine, dried and concentrated to give a crude product. Then purified by high performance liquid chromatography to obtain pure product.
• Protecting groups are those which, once attached to an active moiety (eg, a hydroxyl or amino group), prevent such protecting groups include, but are not limited to, alkyl, benzyl, allyl, trityl (ie, triphenylmethyl)
• An acyl group for example, benzoyl, acetyl or HOOC-X"-CO-, X" is an alkylene, alkenylene, cycloalkylene or arylene group
• a silyl group for example, Trimethylsilyl, triethylsilyl and tert-butyldimethylsilyl
• alkoxycarbonyl aminocarbonyl (for example, dimethylaminocarbonyl, methylethylaminocarbonyl and phenylaminocarbonyl), Alkoxymethyl, benzyloxymethyl and alkyl fluorenylmethyl.
• amino protecting group examples include, but are not limited to, an alkoxycarbonyl group, an alkanoyl group, an aryloxycarbonyl group, an aryl-substituted alkyl group, and the like. Hydroxy and amino protecting groups have been discussed in TW Greene and PGM Wuts, Protective Groups in Organic Synthesis, 2nd Edition, John Wiley and Sons (1991). Both the 3 ⁇ 4 group and the amino protecting group can be removed by a conventional method after the reaction.
• the invention also provides a pharmaceutical composition comprising a compound of formula I of the invention.
• the present invention provides a pharmaceutical composition comprising at least one of the compounds of formula I of the present invention as described above, and optionally a pharmaceutically acceptable excipient.
• Methods of preparing the pharmaceutical compositions include incorporation of suitable pharmaceutical excipients, carriers, diluents and the like.
• the pharmaceutical preparation of the present invention is produced by a known method, including a conventional mixing, dissolving or lyophilizing method.
• the compounds of the present invention can be formulated into pharmaceutical compositions and administered to a patient in a variety of ways suitable for the chosen mode of administration, such as oral, gastrointestinal perfusion, intravenous or intramuscular or dermal injection.
• the compounds of the invention may be administered systemically, for example, orally, in combination with a pharmaceutically acceptable carrier such as an inert diluent or an edible carrier. They can be enclosed in hard or soft In shell gelatin capsules, it can be compressed into tablets.
• a pharmaceutically acceptable carrier such as an inert diluent or an edible carrier.
• the active compound may be combined with one or more excipients and in the form of swallowable tablets, buccal tablets, tablets, capsules, elixirs, suspensions, syrups, wafers, and the like.
• Such compositions and preparations should contain at least 0.1% of active compound.
• the ratio of such compositions and formulations may of course vary and may range from about 1% to about 99% by weight of a given unit dosage form.
• the amount of active compound is such that an effective dosage level can be obtained.
• Tablets, lozenges, pills, capsules, and the like may also contain: a binder such as tragacanth, acacia, corn starch or gelatin; an excipient such as dicalcium phosphate; a disintegrant such as corn starch , potato starch, alginic acid, etc.; a lubricant such as magnesium stearate; and a sweetener such as sucrose, fructose, lactose or aspartame; or a flavoring agent such as mint, wintergreen or cherry.
• a binder such as tragacanth, acacia, corn starch or gelatin
• an excipient such as dicalcium phosphate
• a disintegrant such as corn starch , potato starch, alginic acid, etc.
• a lubricant such as magnesium stearate
• a sweetener such as sucrose, fructose, lactose or aspartame
• a flavoring agent such as mint, winter
• any material used to prepare any unit dosage form should be pharmaceutically acceptable and substantially non-toxic in the amounts employed.
• the active compound can be incorporated into a sustained release preparation and a sustained release device.
• the active compound can also be administered intravenously or intraperitoneally by infusion or injection.
• An aqueous solution of the active compound or a salt thereof, optionally a miscible non-toxic surfactant can be prepared.
• Dispersing agents in glycerin, liquid polyethylene glycols, triacetin and mixtures thereof, and oils can also be prepared. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent microbial growth.
• the pharmaceutical dosage form suitable for injection or infusion may comprise a sterile aqueous solution or dispersion of the active ingredient (optionally encapsulated in a liposome) comprising a ready-to-use preparation suitable for sterile injectable or infusible solutions or dispersions. Or sterile powder.
• the final dosage form must be sterile, liquid, and stable under the conditions of manufacture and storage.
• the liquid carrier can be a solvent or liquid dispersion medium including, for example, water, ethanol, polyol (for example, glycerol, propylene glycol, liquid polyethylene glycol, and the like), vegetable oils, non-toxic glycerides, and suitable mixtures thereof.
• Suitable fluidity for example, by liposome formation, by the maintenance of the required particle size in the case of dispersing agents, or by the use of surfactants.
• the action of preventing microorganisms can be produced by various antibacterial and antifungal agents such as parabens, chlorobutanol, phenol, sorbic acid, thimerosal, and the like.
• isotonic agents such as sugars, buffers or sodium chloride.
• Prolonged absorption of the injectable compositions can be brought about by the use of compositions that delay the absorbent (e.g., aluminum monostearate and gelatin).
• Sterile injectable solutions are prepared by combining the required active compound in a suitable solvent with the various other ingredients listed above, followed by filter sterilization.
• the preferred preparation methods are vacuum drying and lyophilization techniques which result in a powder of the active ingredient plus any additional ingredients present in the previously sterile filtration solution. .
• Useful solid carriers include 4 divided solids (e.g., talc, clay, ⁇ crystalline cellulose, silica, alumina, etc.).
• Useful liquid carriers include water, ethanol or ethylene glycol or water-ethanol
• the I glycol mixture, the compound of the present invention may be dissolved or dispersed in an effective amount, optionally with the aid of a non-toxic surfactant.
• Adjuvants e.g., flavors
• additional antimicrobial agents can be added to optimize the properties for a given use.
• Thickeners can also be used with liquid carriers to form coatable pastes, gels, ointments. , soap, etc., used directly on the user's skin.
• the therapeutic requirements of a compound or an active salt or derivative thereof depend not only on the particular salt selected, but also on the mode of administration, the nature of the disease to be treated, and the age and condition of the patient, ultimately depending on the attending physician or clinician decision.
• unit dosage form is a unit dosage unit containing a physical dispersion unit suitable for administration to humans and other mammalian bodies.
• the unit dosage form can be a capsule or tablet, or a lot of capsules or tablets.
• the amount of unit dose of the active ingredient can vary or be adjusted from about 0.1 to about 1000 grams or more.
• the invention also provides the use of a compound of the invention or a composition comprising the compound for the preparation of a medicament, in particular an antitumor medicament. Accordingly, the present invention provides a method of treating a tumor A method of a patient comprising administering to a patient in need of treatment a therapeutically effective amount of at least one compound of the invention.
• the oleanolic acid amidated derivative of the present invention or a pharmaceutically acceptable salt thereof can be used, for example, for treating leukemia, multiple myeloma, lymphoma, liver cancer, gastric cancer, breast cancer, cholangiocarcinoma, pancreatic cancer, lung cancer, large intestine Cancer, osteosarcoma, melanoma, human cervical cancer, glioma, nasopharyngeal carcinoma, laryngeal cancer, esophageal cancer, middle ear tumor, prostate cancer and other tumors.
• HBTU benzotriazole-oxime, hydrazine, ⁇ ', ⁇ '-tetramethylurea hexafluorotate, p-methylbenzene added to hydrazine, hydrazine-dimethylformamide (0.5 mL)
• Formic acid (15.1 mg, 0.1 mmol), benzotriazole- ⁇ , ⁇ -tetramethylurea hexafluorophosphate (45.5 mg, 0.12 mmol), triethylamine (30.3 mg, 0.30 mmol), at room temperature
• OA-NH 2 110 mg was added, and the mixture was stirred at room temperature for 12 hr. After the reaction, the reaction solution was extracted and concentrated, and the obtained crude product was separated and purified on a preparative column to obtain white solid compound BS-OA-102 (16.1 mg, yield 12.3%).
• BS-OA-096 LC-MS: 1.37 min (97.92%), m/z: 568.6 (M+H).
• BS-OA-097 was prepared by reacting the compound OA-NH 2 with cyclopropanecarboxylic acid according to the method of BS-OA-102: LC-MS: 1.40 min (86.38%) ), m/z: 496.5 (M+H), 518.5 (M+Na).
• BS-OA-098 was prepared by reacting the compound OA-NH: with thiophene-2-carboxylic acid according to the method of BS-OA-102 using the same reagent as above: LC-MS: 1.55 min (99.73%) m/z : 538.5 (M+H), 560.6 (M+Na).
• the compound OA-NH: was reacted with furan-2-carboxylic acid using the same reagent as above to prepare BS-OA- 099: LC-MS: 1.55 min (98.47%) m/z: 522.5 (M+H).
• the compound OA-NH was reacted with 2-furan acrylate using the same reagent as above according to the method of BS-OA-102.
• BS-OA-100 LC-MS: 1.43 min (98.69%) m/z: 549.8 (M+H).
• Compound OA-NH was used according to the method of BS-OA-102 using the same reagent as above. : Reaction with benzoic acid, BS-OA-101: LC-MS: 1.61 min (98.42%), m/z: 532.6 (M+H).
• the same reagent as above was used according to the method of BS-OA-102.
• the BS-OA-103 was prepared: LC-MS: 1.58 min ( 98.59%), m / z:. 562.6 (m + H) according BS-
• the method of OA-102 using the same reagent as above, reacting the compound OA-NH 2 with tetrahydrofuran-2-carboxylic acid to prepare BS-OA-104: LC-MS: 1 .32 min (98.25%), m/z: 526.6 (M+H), 548.5 (M+Na).
• Example 2 Determination of the activity of the oleanolic acid amidated derivative of the invention against leukemia
• Leukemia cell line leukemia cell line: K562/adr (resistant chronic myeloid leukemia, CML), NB4 (acute promyelocytic leukemia, AML), Kasumi-1 (acute myeloid leukemia M2, AML-M2), Jurkat (acute lymphocytic leukemia, ALL), above cell lines They were all donated to the Institute of Cancer Research, Zhejiang University; H9 (Acute Lymphocytic Leukemia, ALL), purchased from the China Center for Type Culture Collection.
• Oleanolic acid (OA) standard was purchased from Huakang Pharmaceutical Raw Material Factory of Shifang City, Sichuan province, and the oleanolic acid amidated derivative of the present invention.
• 6000 well-grown leukemia cells were inoculated into the wells of a 96-well cell culture plate.
• the culture broth was a 1640 cell culture medium containing 10% fetal bovine serum.
• Different concentrations of oleanolic acid amidated derivatives were added, and after mixing, they were placed in a carbon dioxide (5% CO 2 ) cell incubator 37. C was cultured for 72 hours. The relative number of viable cells was then determined by the MTT method.
• the control group (without compound treatment), the cell proliferation inhibition rate was set to 0%, and the relative number of living cells was calculated to determine the half-length growth inhibitory concentration of leukemia cells (72 hours IC 5G value, g/mL) and 16 g/mL Compound 72 hours of leukemia cell proliferation inhibition rate (Inhibition Rate) IR.
• Table 1 shows that the oleanolic acid amidated derivative of the present invention can induce cell death of human chronic myeloid leukemia, acute myeloid leukemia and acute lymphocytic leukemia and inhibit the growth of these leukemia cells, wherein the present invention is derived from oleanolic acid amidation BS-OA-096, BS-OA-097, BS-OA-098, BS-OA-099, BS-OA-101, BS-OA-103 are particularly active against K562/adr, with oleanolic acid Ratio, the cell inhibition rate is increased by more than 3 times; BS-OA-096, BS-OA-097, BS-OA-098, BS-OA-099, BS-OA-101 anti-NB4 activity and oleanolic acid phase Ratio, cell inhibition rate increased by more than 5 times; BS-OA-099, BS-OA-101 increased anti-Kasumi-1 cell inhibition rate by
• Example 3 Determination of activity of oleanolic acid amidated derivatives of the present invention against human multiple myeloma cells
• Myeloma cell line RPMI8226 (multiple myeloma), purchased from Shanghai Fuxiang Biotechnology Co., Ltd.
• the culture broth was a 1640 cell culture medium containing 10% fetal bovine serum. Different concentrations of oleanolic acid amidated derivatives were added, and after mixing, they were placed in a carbon dioxide (5% CO 2 ) cell incubator 37. C was cultured for 72 hours. The relative number of viable cells was then determined by the MTT method.
• the control group (without compound treatment), the cell proliferation inhibition rate was set to 0%, and the relative number of living cells was calculated to determine the half-length growth inhibitory concentration of leukemia cells (72 hours IC 5G value, g/mL) and 16 Inhibition rate of tumor cell proliferation of g/mL compound for 72 hours.
• Table 2 shows that the oleanolic acid amidated derivatives of the present invention are capable of inducing death of human myeloma and inhibiting the growth of these tumor cells.
• BS-OA-096, BS-OA-097, BS-OA-098, BS-OA-099, BS-OA-101, BS-OA-103, BS-OA-104 of the present invention have anti-RPMI8226 activity and Compared with oleanolic acid, the cell inhibition rate was increased by more than 44 times.
• Example 4 Determination of anti-human solid tumor effect of oleanolic acid amidated derivative of the present invention
• Human solid tumor cell lines Hep-2 (larynx cancer), A549 (human lung cancer), CaES-17 (esophage cancer cells), PC-3 (prostate cancer), CNE (nasopharyngeal carcinoma cells), SK-OV-3 (ovarian cancer cells), all purchased from the China Center for Type Culture Collection; RKO (human colon adenocarcinoma), MGC 803 (human gastric cancer cells), MG63 (osteosarcoma), U87 MG (malignant glioma cells), All purchased from Shanghai Fuxiang Biotechnology Co., Ltd.; PANC-1 (pancreatic cancer), Hep G2 (human liver cancer cells), Becap37 (human breast cancer cells), Hela (human cervical cancer cells), all received from Zhejiang University Cancer graduate School.
• RKO human colon adenocarcinoma
• MGC 803 human gastric cancer cells
• MG63 osteosarcoma
• U87 MG malignant glioma cells
• the culture solution was a DMEM high glucose cell culture medium containing 10% fetal calf serum. Placed in carbon dioxide (5% C0 2 ) Cell culture incubator 37. C was cultured for 24 hours, and then, different concentrations of oleanolic acid amidated derivatives were added, and after mixing, carbon dioxide (5% CO 2 ) cell incubator 37 was further placed. C was cultured for 72 hours. The relative number of viable cells was then determined by the MTT method.
• the control group (without compound treatment), the cell proliferation inhibition rate was set to 0%, and the relative number of living cells was calculated to determine the half-length growth inhibitory concentration of leukemia cells (72 hours IC 5 Q value, g/mL) and Inhibition rate of tumor cell proliferation of 16 g/mL compound for 72 hours.
• Table 2 shows that the oleanolic acid amidated derivatives of the present invention are capable of inducing death of human solid tumor cells and inhibiting the growth of these tumor cells. Compared with oleanolic acid itself, the inhibition rate of the oleanolic acid amidated derivative BS-OA-096 against PANC-1, Hela, CNE and MGC803 was increased by 7 times, 4 times, 2 times and 3 times, respectively.
• the anti-RKO, MG63, SK-OV-3 cell inhibition rate increased by 4 times, 3 times and 12 times, respectively; BS-OA-097 anti-PC-3 cell inhibition rate increased nearly 2 times, anti-MG63 increased more than 3 times; BS-OA-099 anti-RKO, A549 cell inhibition rate increased by more than 4 times, its anti-U87 MG, CaES-17 cell inhibition rate increased more than 2 times, its anti-Hep-2 cell inhibition rate increased more than 3 times; Table 2 Growth inhibition concentration (72 hours, IC 50 value and IR value) for multiple myeloma and human solid tumor cells.

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