WO2009062342A1 - Dérivés de céphalomannine et leur préparation, composition médicale et utilisation - Google Patents

Dérivés de céphalomannine et leur préparation, composition médicale et utilisation Download PDF

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WO2009062342A1
WO2009062342A1 PCT/CN2007/003235 CN2007003235W WO2009062342A1 WO 2009062342 A1 WO2009062342 A1 WO 2009062342A1 CN 2007003235 W CN2007003235 W CN 2007003235W WO 2009062342 A1 WO2009062342 A1 WO 2009062342A1
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Prior art keywords
group
cephalosporin
propionyl
ethyl acetate
unsubstituted
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PCT/CN2007/003235
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English (en)
French (fr)
Inventor
Weishuo Fang
Xiaoguang Chen
Chungang Yang
Xuan Li
Hongbo Wang
Hongyan Liu
Rui Han
Limin Zhao
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Institute Of Mataria Medica, Chinese Academy Of Medical Sciences
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Priority to CN200780101496A priority Critical patent/CN101855216A/zh
Priority to KR1020107011108A priority patent/KR20100083177A/ko
Priority to AU2007361151A priority patent/AU2007361151A1/en
Priority to EA201000807A priority patent/EA201000807A1/ru
Priority to JP2010533407A priority patent/JP2011503121A/ja
Priority to PCT/CN2007/003235 priority patent/WO2009062342A1/zh
Application filed by Institute Of Mataria Medica, Chinese Academy Of Medical Sciences filed Critical Institute Of Mataria Medica, Chinese Academy Of Medical Sciences
Priority to MX2010005393A priority patent/MX2010005393A/es
Priority to CA2705481A priority patent/CA2705481C/en
Priority to EP07816841A priority patent/EP2213667A4/en
Priority to US12/742,758 priority patent/US20110039921A1/en
Publication of WO2009062342A1 publication Critical patent/WO2009062342A1/zh
Priority to ZA2010/03335A priority patent/ZA201003335B/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D305/00Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms
    • C07D305/14Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms condensed with carbocyclic rings or ring systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents

Definitions

  • Cephalosporin derivative preparation method thereof and pharmaceutical composition and use thereof
  • the present invention discloses a cephalosporin derivative represented by the formula (I), a process for preparing such a cephalosporin derivative, a composition containing the compound, and a compound of the same for preparing an antitumor
  • drugs especially in the preparation of anti-multidrug resistant oncology drugs.
  • Taxane compounds in sputum are a subject of interest in the fields of biology and chemistry. Among them, paclitaxel has a good tumor suppressing activity, and it has been marketed as an anticancer drug, and its structure is as follows -
  • Ac is an acetyl group and Bz is a benzoyl group.
  • paclitaxel analog docetaxel is reported by Colin et al. in U.S. Patent 4,814,470, which is significantly more active than paclitaxel and is marketed as an anticancer drug.
  • the structural formula is as follows:
  • Paclitaxel and docetaxel have a unique mechanism of action. They mainly promote the polymerization of tubulin and inhibit its depolymerization, resulting in abnormal arrangement of microtubule bundles, formation of stelloids, loss of normal function of the spindle, and blocking of cell cycle. in G2 / M phase, leading to cell death (schif, PB; Fant, J .; Horwitz SB Nature 1979, 277:. 665) their unique role 0, a significant effect, a number of other tumors invalid effective anticancer drugs, is Currently a very popular anticancer drug.
  • paclitaxel has become an increasingly prominent problem in the application of chemotherapy in patients with primary and secondary tumor resistance.
  • Docetaxel is also ineffective against paclitaxel-resistant tumors. This has greatly limited their application. It is of great significance to develop new taxol anticancer drugs that are effective against multidrug resistant tumors. It is well known that one of the main factors in the failure of tumor chemotherapy is the multidrug resistance of tumors. The cause of tumor resistance is complex.
  • Paclitaxel resistance is primarily associated with overexpression of P-glycoprotein and tubulin mutations that are targets of such drugs.
  • Tubulin-mediated resistance may also result from mutations in amino acid residues, and the binding of the variant tubulin to paclitaxel is weakened, resulting in decreased activity.
  • P-glycoprotein can actively transport a variety of exogenous compounds, including chemotherapeutic drugs, out of the cell, thereby reducing the concentration in the tumor cells below the effective concentration.
  • Overcoming drug-resistant tumors can be mainly through the following ways: (1) anticancer drugs and MDR reversal agents are mainly combined with P-glycoprotein inhibitors; (2) new anticancer drugs that are equally effective against drug-resistant tumors are found.
  • the research based on the first route has been very extensive, and it is feasible in principle and has good experimental results reported both inside and outside, but unfortunately, it has not achieved satisfactory results in clinical practice. Therefore, people began to hope for a second way to develop new anticancer drugs that are equally effective against drug-resistant tumors. This has become a research hotspot of taxane anticancer drugs at home and abroad.
  • cephalosporin and paclitaxel structure shown below
  • paclitaxel structure shown below
  • paclitaxel analog, cephalosporin as a lead, to facilitate the creation of new drugs and to make full use of resources.
  • One technical problem to be solved by the present invention is to provide a novel cephalosporin derivative which is effective against paclitaxel and docetaxel-resistant tumors.
  • Another technical problem to be solved by the present invention is to provide a process for preparing the novel cephalosporin derivative.
  • a further technical problem to be solved by the present invention is to provide a pharmaceutical composition comprising as an active ingredient a compound of the formula (I) and a pharmaceutically acceptable carrier.
  • Still another technical problem to be solved by the present invention is to provide a novel use of a cephalosporin derivative and a composition thereof as an antitumor agent.
  • the present invention adopts the following technical solutions.
  • cephalosporin derivative of the present invention is represented by the general formula (I).
  • (I) is selected from the group consisting of hydrogen, TMS, TES, TBS or -CO3 ⁇ 4, and Xi is selected from the group consisting of -5 alkyl;
  • R 3 is selected from hydrogen, substituted or unsubstituted Q- 15 straight or branched alkyl, C 2 - 15 alkenyl, -15 alkynyl, unsubstituted, monosubstituted or polysubstituted aryl and heteroaryl Base, -OX 6; -SX 6 ; -NHX 6; -OCOX 6; and,
  • X 2 , X 3 , X 4 , X 5 , X 6 are independently selected from hydrogen; substituted or unsubstituted C ri5 straight or branched alkyl, 3 ⁇ 4- 15 alkenyl, C 2 - 15 alkynyl, Unsubstituted, monosubstituted or polysubstituted aryl and heteroaryl;
  • the substituent on the fluorenyl group is selected from the group consisting of a hydroxyl group, an amino group, a carboxyl group, a carbonyl group, a -5 alkoxy group, a halogen, a -5 alkoxycarbonyl group, a Nd- 5 carbamoyl group, a cyano group, a nitro group;
  • the substituents on the aryl group and heteroaryl group selected from hydroxyl, hydroxymethyl, halo, -5 alkyl, C 5 alkoxy - C5 alkenyl, acyl, acyloxy, nitro, amino, Amido, cyano, azide; preferred Q- 15 alkenyl selected from the group consisting of ethenyl, propenyl, isopropenyl, butenyl, isobutenyl, hexyl;
  • Preferred C rl5 alkynyl is selected from the group consisting of ethynyl, propynyl, isopropynyl, butynyl, isobutynyl, hexynyl;
  • Preferred aryl groups are selected from the group consisting of phenyl, naphthyl, biphenyl;
  • Preferred heteroaryl groups are selected from the group consisting of furyl, thienyl, pyridyl, benzofuran, bipyridyl; said halogens are selected from F, CI, Br, I. More preferably and independently are selected from the group consisting of hydrogen, formyl, acetyl and propionyl. The meaning of the symbols and terms used in the text is -
  • the C-7-position modified or unmodified cephalosporin base is used as a raw material, and the C-7 hydroxyl group is condensed with the corresponding acid or acid chloride; or the C- and 7-position modified Cephalotaxus N-base, remove the benzoyl group at the 2-position to give the key intermediate, and then condense with the corresponding acid or acid chloride.
  • the above acylation reaction is preferably carried out in the presence of a condensation reagent.
  • Preferred condensation reagents include 1,3-dicyclohexyl imide (DCC), dipyridine carbonate (2-DPC), 1,3-diisopropylimide (DIPC), 1-(3-di Methylaminopropyl)-3-ethylcarbimide (EDCI); More preferred reagents are DCC, DIPC, EDCL
  • Preferred catalysts include tertiary amines, pyridine, 4-dimethylaminopyridine and 4-pyrrolidino; more preferred catalysts are 4-dimethylaminopyridine and 4-pyrrolidinopyridine.
  • organic solvents include dimethyl sulfoxide (DMSO), toluene, dichloromethane, ethylene glycol dimethyl ether, 1,2-dichloroacetamidine, tetrahydrofuran and hydrazine, hydrazine-dimethylformamide (DMF); More preferred are toluene, tetrahydrofuran and hydrazine, hydrazine-dimethylformamide (DMF).
  • DMSO dimethyl sulfoxide
  • toluene dichloromethane
  • ethylene glycol dimethyl ether 1,2-dichloroacetamidine
  • tetrahydrofuran and hydrazine hydrazine-dimethylformamide
  • DMF hydrazine-dimethylformamide
  • the reaction temperature is 10-12 (TC, preferably 30-90 Torr).
  • the invention further relates to a pharmaceutical composition comprising a compound of the invention as an active ingredient.
  • the pharmaceutical composition can be prepared according to methods well known in the art. Any dosage form suitable for human or animal use can be prepared by combining a compound of the invention with one or more pharmaceutically acceptable solid or liquid excipients and/or adjuvants.
  • the content of the compound of the present invention in its pharmaceutical composition is usually from 0.1 to 95% by weight.
  • the compound of the present invention or the pharmaceutical composition containing the same may be administered in a unit dosage form, which may be enterally or parenterally, such as oral, intravenous, intramuscular, subcutaneous, nasal, oral mucosa, eyelid, lung. And the respiratory tract, skin, vagina, rectum, etc.
  • the dosage form can be a liquid dosage form, a solid dosage form or a semi-solid dosage form.
  • Liquid dosage forms can be solutions (including true and colloidal solutions), emulsions (including o/w, w/o and double emulsions), suspensions, injections (including water injections, powder injections and infusions), eye drops Agent, nasal drops, lotion and expectorant, etc.; solid dosage forms may be tablets (including ordinary tablets, enteric tablets, tablets, dispersible tablets, chewable tablets, effervescent tablets, orally disintegrating tablets), capsules ( Including hard capsules, soft capsules, enteric capsules), granules, powders, pellets, dropping pills, suppositories, films, patches, gas (powder) sprays, sprays, etc.; semi-solid dosage forms can be ointments, Gel, paste, etc.
  • the compounds of the present invention can be formulated into common preparations, as sustained release preparations, controlled release preparations, targeted preparations, and various microparticle delivery systems.
  • the diluent may be starch, dextrin, sucrose, glucose, lactose, mannitol, sorbitol, xylitol, microcrystalline cellulose, calcium sulfate, calcium hydrogen phosphate, calcium carbonate, etc.
  • the humectant may be water, ethanol, or different Propyl alcohol, etc.
  • the binder may be starch paddle, dextrin, syrup, honey, glucose solution, microcrystalline cellulose, gum arabic, gelatin paste, sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethyl Cellulose, ethyl cellulose, acrylic resin, carbomer, polyvinylpyrrolidone, polyethylene glycol, etc.
  • disintegrant can be dry starch, microcrystalline cellulose, low substitute
  • Tablets may also be further formulated into coated tablets such as sugar coated tablets, film coated tablets, enteric coated tablets, or bilayer tablets and multilayer tablets.
  • the active ingredient compound of the present invention may be mixed with a diluent, a flow aid, and the mixture may be directly placed in a hard capsule or a soft capsule.
  • the active ingredient of the present invention may also be formulated into a granule or pellet with a diluent, a binder, a disintegrant, and then placed in a hard or soft capsule.
  • the various diluents, binders, wetting agents, disintegrants, glidants of the tablets used to prepare the compounds of the invention are also useful in the preparation of capsules of the compounds of the invention.
  • water, ethanol, isopropanol, propylene glycol or a mixture thereof may be used as a solvent, and an appropriate amount of a solubilizing agent, a solubilizing agent, a pH adjusting agent, and an osmotic pressure adjusting agent which are commonly used in the art may be added.
  • a solubilizing agent e.g., sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate, sodium bicarbonate
  • mannitol, glucose or the like may also be added as a proppant.
  • coloring agents, preservatives, perfumes, flavoring agents or other additives may also be added to the pharmaceutical preparations as needed. According to the present invention, it has been found that the compound of the formula (I) exhibits remarkable biological activity in pharmacological screening and is a valuable antitumor agent. It can be used to inhibit the growth of tumors in animals including humans.
  • the compound of the present invention has been strongly tested against sensitive tumors by pharmacological in vitro experiments, and the most active of them is similar to paclitaxel, but the activity of tumors resistant to overexpression of ⁇ -glycoprotein is Dozens of times paclitaxel.
  • the compounds of the present invention are equally effective against tumors that are resistant to mutations in tubulin amino acid residues, and are more active than paclitaxel.
  • the pharmaceutical or pharmaceutical composition of the present invention can be administered by any known administration method for the purpose of enhancing the therapeutic effect for the purpose of administration.
  • the pharmaceutical composition of the present invention can be administered in a wide range of dosages depending on the nature and severity of the disease to be prevented or treated, the individual condition of the patient or animal, the route of administration and the dosage form, and the like.
  • suitable daily dosage ranges of the compounds of the present invention to 0.001-150mg / Kg body weight, preferably (-100mg / K g body weight, more preferably l-60mg / Kg body weight, most preferably 2-30mg / Kg body weight
  • the above dosages may be administered in one dosage unit or in divided dose units depending on the clinical experience of the physician and the dosage regimen including the use of other therapeutic means.
  • the compounds or compositions of this invention may be administered alone or in combination with other therapeutic or symptomatic agents.
  • the compound of the present invention synergizes with other therapeutic agents, its dosage should be adjusted according to the actual situation.
  • BEST MODE FOR CARRYING OUT THE INVENTION The following examples are intended to further illustrate the invention, but this is not intended to limit the invention.
  • Step 1-2 The method described in the following steps 1-2 of Embodiment 1.
  • Step 3 2'-tert-Butyldimethylsilyl -10--propionyl- cephalosporin
  • Propionic anhydride (0.22ml, lJlmmol), reacted at 30 ° C for 2 hours, added 300ml of ethyl acetate, washed with saturated NaHC0 3 solution 2 X 50ml, 50ml saturated NaCl solution, the aqueous layer was extracted with ethyl acetate 150ml, combined with acetic acid The ester layer was dried over anhydrous sodium sulfate, filtered, and the ethyl acetate layer was evaporated to silica.
  • Target product Step 4 2,-tert-Butyldimethylsilyl-7-triethylsilyl- 10-propionyl- cephalosporin 2'-tert-butyldimethylsilyl-10 -propionyl- cephalosporin (193 mg, 0.201 mmol) was dissolved in 2 ml of DMF, and imidazole (73 mg, 1.07 mmol) and triethylchlorosilane (0.135 ml) were added for 10 hours at room temperature, and 10 ml of a saturated NaHC0 3 solution was added. The mixture was extracted with EtOAc (EtOAc)EtOAc.EtOAc. The target product was 198mg (91.7%).
  • Step 5 2'-tert-Butyldimethylsilyl-2-debenzoyl-7-triethylsilyl- 10-propionyl- cephalosporin
  • the obtained product was mixed with impurities such as DCU, and then deprotected without purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • NaHC0 3 solution 2X 20 ml, EtOAc (EtOAc):EtOAc:EtOAc Acetone 8: 3: 2.
  • the target product was 20.3 mg, and the total yield in two steps was 62.3%.
  • Step 1-5 The method described in the following steps 1 to 5 in Embodiment 2.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • pyridine 0.683 ml
  • HF HF
  • ethyl acetate was added thereto to be saturated.
  • NaHC0 3 solution 2 X 20 ml, EtOAc (3 mL) : Acetone 8: 3: 2.
  • the target product was 21.0 mg, and the total yield of the two steps was 62.5 %.
  • Step 1-3 The method described in the following steps 1-3 in Example 2.
  • Step 4 10-propionyl- cephalosporin
  • Step 1 The method described in the same manner as in Step 1 of Example 1.
  • Step 2 2-tert-Butyldimethylsilyl-2-desbenzoyl- cephalosporin
  • the obtained product was mixed with impurities such as DCU, and then deprotected without further purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • Step 1 The method described in the same manner as in Step 1 of Example 1.
  • Step 2 The method described in the second step of Example 5.
  • the obtained product was mixed with impurities such as DCU, deprotected without purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • Examples 7-14 were prepared by the following reaction scheme of the reaction.
  • Step 3 2, tert-butyldimethylsilyl decyl -10-triethylsilyl-tritercinoline
  • 2,-tert-Butyldimethylsilyl-10-deacetyl-trisamine (300 mg, 0.332 mmol) was dissolved in 10 ml of THF, protected with N 2 , a 10 ° C ice salt bath, N, 0-bis(triethylsilyl)-trifluoroacetamide (1 ml) and LHMDS (3 ul), reacted for 10 minutes, added 10 ml of a saturated NaHCO3 solution, extracted with ethyl acetate 3 ⁇ 50 ml, and then combined ethyl acetate layer. After drying over anhydrous sodium sulfate, the ethyl acetate layer was evaporated to dryness. The target product was 314mg (92.6%) o
  • Step 4 2,-tert-Butyldimethylsilyl -10-triethylsilyl sulfonyl-7-propionyl- cephalosporin
  • Step 1-5 The method described in the following steps 1-5 in Example 7.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • pyridine 0.683 ml
  • HF HF
  • ethyl acetate was added thereto to be saturated.
  • NaHC0 3 solution 2 X 20 ml, EtOAc (3 mL) : Acetone 8: 3: 2.
  • the target product was 15.0 mg, and the total yield in two steps was 76.5 %.
  • Step 1-5 The method described in the following steps 1-5 in Example 7.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without further purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • the NaHC0 3 solution was washed with 2 ⁇ 20 ml, and the aqueous layer was evaporated, evaporated, evaporated, evaporated, evaporated, evaporated : 3 2.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without further purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • the NaHC0 3 solution was washed with 2 ⁇ 20 ml, and the aqueous layer was washed with ethyl acetate (3 ⁇ 50 ml), ethyl acetate layer was evaporated, dried over anhydrous sodium sulfate and evaporated.
  • Steps 1-6 The same procedure as described in steps 1-6 of Example 10. For the product of Step 6 in Example 10, the yield was 27%.
  • Step 1-5 The method described in the following steps 1-5 in Example 7.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • the NaHC0 3 solution was washed with 2 ⁇ 20 ml, and the aqueous layer was washed with ethyl acetate (3 ⁇ 50 ml), ethyl acetate layer was evaporated, dried over anhydrous sodium sulfate and evaporated. : 3: 2.
  • Step 1-5 The method described in the following steps 1-5 in Example 7.
  • the obtained product was mixed with impurities such as DCU, and then deprotected without further purification, dissolved in 1.4 ml of acetonitrile, and then pyridine (0.683 ml) and HF (0.375 ml) were added thereto, and reacted at room temperature for 24 hours, and 30 ml of ethyl acetate was added thereto to be saturated.
  • NaHC0 3 solution 2> ⁇ 20 ml wash the aqueous layer was extracted with ethyl acetate 3 ⁇ 50 ml, ethyl acetate layer was combined, dried over anhydrous sodium sulfate, and the ethyl acetate layer was evaporated to dryness.
  • Acetone 8: 3: 2.
  • Steps 1-6 The same procedure as described in steps 1-6 of Example 7. Just the m-methoxybenzoic acid in step 6. Change to 2-butenoic acid.
  • Step 1-5 The method described in the following steps 1-5 in Example 7.
  • the logarithmic growth phase cells were cultured in 96-well culture plates, each well ⁇ (containing 1000-1200 tumor cells).
  • the drug-administered group was added with different concentrations of compounds, and each drug was set to 4 to 5 dose groups, and each group was provided with at least three parallel holes.
  • the control group was added with an equal volume of solvent to the compound. Incubate in 37 °, 5% C0 2 incubator, discard the culture solution after 4 days, and add 200 ⁇ l of 10.2% hydrazine solution (RPMI 1640) per well. After incubation at 37 ° C for 4 hours, the supernatant was discarded, and 200 ⁇ l of DMSO was dissolved in each well to dissolve the formazan particles.
  • the optical density value (OD) was measured with a microplate reader at a reference wavelength of 450 nm and a detection wavelength of 570 nm.
  • the tumor cells treated with the solvent control were used as a control group, and the inhibition rate of the drug on the tumor cells was calculated by the following formula, and the IC 50 was calculated :
  • the average OD value of the control group and the average OD value of the administration group are identical to each other.
  • Example 3 1.38X10- 7 8.02xl0 -7 7.04X10 -8 Embodiment>1> ⁇ 10 -6
  • Example 4 9.74xl0 "9 4.85 ⁇ 10”
  • Example 5 5.90X10- 10 2.23x10 7 2.01X10- 7 4.2 ⁇ -7 embodiment -7> 1 ⁇ 10- 6> 1 ⁇ 10 -6
  • Example 6 1 ⁇ 44 ⁇ 1 ( ⁇ 7 8.94x1 ⁇ - 7 2 ⁇ 10 ⁇ 1 ( ⁇ 7> 1 ⁇ 10 -6
  • Example 8 2.39 ⁇ 10 -9 2.73 l0 -7 9 ⁇ 36 ⁇ 1 ( ⁇ 9> 1 ⁇ 10- 6 paclitaxel 8.66xl0 -9 9.59X10- 7 2.32X10 -7> 1 ⁇ 1.- 6 three cephalomannine 5.18X10- 9 ⁇ . ⁇ " 6 1.33x10-7 >1 ⁇ 10" 6 -polyene pac
  • KB is a human oral epithelial cancer cell line
  • KB/V is a human lung adenocarcinoma cell vincristine resistant strain
  • A549 is a human lung adenocarcinoma cell line
  • A549/Taxol is a paclitaxel resistant strain of human lung adenocarcinoma cells.
  • Table 2 MTT assay for the cytotoxic effect of the compound of Example 8 on multiple tumor cells
  • A549/T human lung adenocarcinoma resistant to Taxol cell line
  • MCF-7/D human breast cancer resistant to adriamycin cell line.
  • Example 8 paclitaxel is a raw material, white powder.
  • Formulation method Paclitaxel, the compound of Example 8 was formulated into the desired concentration using the injectable solvent provided by Concord.
  • mice BALB/c (nu/nu) nude mice
  • Feeding environment SPF level.
  • the animals were subcutaneously inoculated with human lung adenocarcinoma A549 or human ovarian cancer A2780 or human gastric cancer BGC-823 cells. After the tumors were grown to 100-300 mm 3 , the animals were randomly divided into groups (d0). The dose was administered to human lung adenocarcinoma A549, paclitaxel at 10 mg/kg, and Example 8 at 5 mg/kg, administered intraperitoneally.
  • the administration time of paclitaxel and Example 8 were both d0-d4 days, once a day for 5 times; in human ovarian cancer A2780 and Human gastric cancer BGC-823, paclitaxel was 30 mg/kg, and Example 8 was 7.5 mg/kg, 15 mg/kg, and 30 mg/kg.
  • the administration time of paclitaxel was d0-d3 days in human ovarian cancer A2780, once a day. 4 times, in human gastric cancer
  • BGC-823 is d0-d2 days, once a day, a total of 3 times, and Example 8 is d0-d3 days, once a day, a total of
  • the tumor volume (V) is calculated as:
  • V l/2xaxb 2 where a and b represent length and width, respectively.
  • Control group 7 22. 0 25. 1 149. 9+59. 0 1447. 4+941. 2 9. 7
  • Paclitaxel can inhibit the growth of human lung adenocarcinoma A549, human ovarian cancer A2780, Lewis lung cancer and human gastric cancer BGC-823 xenograft tumor in nude mice;
  • Example 8 on human lung adenocarcinoma A549, human ovarian cancer A2780, Lewis lung cancer nude mouse allogeneic The growth inhibition of transplanted tumors is stronger than that of paclitaxel, and the growth inhibition effect on human gastric cancer BGC-823 xenografts in nude mice is comparable to that of paclitaxel.

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Description

三尖杉宁碱衍生物、 及其制法和其药物组合物与用途 技术领域
本发明公开了如通式 (I)所示的三尖杉宁碱衍生物, 这类三尖杉宁碱衍生物 的制备方法, 含有这类化合物的组合物, 以及这类化合物在制备抗肿瘤药物中的 应用, 尤其是在制备抗多药耐药肿瘤药物中的应用。 背景技术 萜稀中的紫杉烷类化合物,在生物学和化学领域都是人们所关注的课题。其中 尤其紫杉醇具有很好的肿瘤抑制活性, 它已经作为抗癌药上市, 结构如下-
Figure imgf000003_0001
其中, Ac为乙酰基, Bz为苯甲酰基。
Colin等人在美国专利 4, 814, 470中报道了紫杉醇类似物多烯紫杉醇, 它的 活性明显高于紫杉醇, 并亦作为抗癌药上市, 其结构式如下:
Figure imgf000003_0002
紫杉醇和多烯紫杉醇的作用机理独特, 它们主要是促进微管蛋白聚合, 抑制 其解聚, 从而导致微管束的排列异常, 形成星状体, 使紡锤体失去正常功能, 将 细胞周期阻断于 G2/M期, 导致癌细胞的死亡 (Schif, P. B.; Fant, J.; Horwitz S. B. Nature. 1979, 277: 665)0 它们作用独特, 疗效显著, 对许多其它抗癌药无效肿瘤有 效, 是目前十分畅销的抗癌药。
尽管紫杉醇在临床上获得巨大成功, 但它自身具有一些缺点亟需克服。 除水 溶性差, 资源有限等缺点外, 紫杉醇对原发性及继发性肿瘤耐药病人的化疗无效 成为该药应用中越来越突出的问题。 多烯紫杉醇对紫杉醇耐药肿瘤也是无效的。 这使它们的应用受到了很大限制。 开发对多药耐药肿瘤有效的新型紫杉垸类抗癌 药具有重要的意义。 众所周知,肿瘤化疗失败的主要因素之一就是肿瘤的多药耐药性。肿瘤耐药成 因复杂。 紫杉醇的耐药性则主要与 P-糖蛋白过量表达以及作为该类药物靶点的微 管蛋白突变有关。 微管蛋白介导的耐药又可能源于氨基酸残基突变, 而变异的微 管蛋白与紫杉醇的结合作用变弱,从而导致其活性下降。 P-糖蛋白能将包括化疗药 物在内的多种外源性化合物主动转运出细胞, 从而使其在肿瘤细胞内的浓度降到 有效浓度之下。
克服耐药肿瘤主要可通过以下途径:(1)抗癌药与 MDR逆转剂主要是 P-糖蛋白 抑制剂合用; (2)发现新的对耐药肿瘤同样有效的抗癌药。 基于第一条途径的研究 已经非常广泛, 在原理上可行而且体内外都有不错的实验结果报道, 但遗憾的是 至今未在临床上取得理想效果。 因此, 人们开始寄希望于第二条途径, 研制新的 对耐药肿瘤同样有效的抗癌药。 这已成为国内外紫杉烷类抗癌药研究热点。 已有 报道发现一些能对多药耐药肿瘤有效的第二代紫杉垸化合物, 例如 BMS-148876, IDN-5109。 它们对多药耐药肿瘤的活性明显优于紫杉醇和多烯紫杉醇, 目前已经 进入临床研究阶段。
三尖杉宁碱结构与紫杉醇类(结构如下所示),在植物中含量较高(万分之 1-2, 与紫杉醇的含量相当), 且其对敏感和耐药肿瘤的作用与紫杉醇类似, 但在工业分 离生产中往往被作为紫杉醇的副产品而舍弃, 未被有效利用。 我们以紫杉醇类似 物三尖杉宁碱为先导物进行改造, 既便于创制新药, 又可以充分利用资源。
Figure imgf000004_0001
发明内容 本发明要解决的一个技术问题是提供一种针对耐紫杉醇和多烯紫杉醇肿瘤有 效的新的三尖杉宁碱衍生物。
本发明要解决的另一个技术问题是提供制备该新的三尖杉宁碱衍生物的方法。 本发明要解决的又一个技术问题是提供一种药物组合物,其中包括作为活性成 份的通式 (I) 的化合物和药学上可接受的载体。
本发明要解决的再一个技术问题是提供一种新的三尖杉宁碱衍生物及其组合 物作为抗肿瘤剂的应用。 为解决上述技术问题, 本发明采用如下技术方案,
具体地讲, 本发明涉及的三尖杉宁碱衍生物如通式 (I) 所示
Figure imgf000005_0001
(I) 选自氢, TMS, TES, TBS或 -CO¾, Xi选自 -5烷基;
选自氢, 取代的或非取代的 C i5直链或支链烷基, -15链烯基, ¾-15炔 基, 未取代、 单取代或多取代的芳基及杂芳基, -COX2 ; -COX3-COO¾ ;
-COX3-CONX4X5;
R3选自氢, 取代的或非取代的 Q-15直链或支链烷基, C2-15链烯基, -15炔 基, 未取代、 单取代或多取代的芳基及杂芳基, -OX6; -SX6; -NHX6; -OCOX6; 并且,
X2, X3, X4, X5, X6独立地选自氢; 取代的或非取代的 Cri5直链或支链烷基, ¾-15链烯基, C2-15炔基, 未取代、 单取代或多取代的芳基及杂芳基;
所述垸基上的取代基选自羟基, 氨基, 羧基, 羰基, -5烷氧基, 卤素, -5 烷氧羰基, N-d-5垸基氨基甲酰基, 氰基, 硝基; .
所述芳基及杂芳基上的取代基选自羟基, 羟甲基, 卤素, -5烷基, C 5烷氧 基, -5链烯基, 酰基, 酰氧基, 硝基, 氨基, 酰胺基, 氰基, 叠氮基; 优选的 Q-15链烯基选自乙烯基, 丙烯基, 异丙烯基, 丁烯基, 异丁烯基, 己 炼基;
优选的 Crl5炔基选自乙炔基, 丙炔基, 异丙炔基, 丁炔基, 异丁炔基, 己炔 基;
优选的芳基选自苯基, 萘基, 联苯基;
优选的杂芳基选自呋喃基, 噻吩基, 吡啶基, 苯并呋喃, 联吡啶基; 所述的卤素选 F, CI, Br, I。 更优选的 和 独立的选自氢, 甲酰基, 乙酰基, 丙酰基。 文中所用符号和术语的含义是-
"Bz"指苯甲酰基; "Ph"指苯基; "Ac"指乙酰基; "Et"指乙基; "R"除另 外定义外一般是指烷基; " TMS " 指三甲硅垸基; "TES " 指三乙基甲硅烷基; "TBS"指叔丁基二甲基甲硅烷基; "DMAP"指对二甲氨基吡啶; "DMF"指 N, N-二甲基甲酰胺; "THF"指四氢呋喃; "DCC"指二环己基碳二亚胺; ' "PP"指 4- 吡咯基吡啶; "r.t."指室温; "TritonB"指卞基三甲基氢氧化铵; 根据本发明还涉及制备本发明化合物的方法, 下面反应通式 IIa, lib给于具 体说明
Figure imgf000006_0001
lib
具体而言, 用 C-10位修饰或未修饰的三尖杉宁碱为原料, 将 C-7位羟基与相 应的酸或酰氯缩合; 或用 C-10位和 7位修饰的三尖杉宁碱, 脱除 2位苯甲酰基, 得到关键中间体, 再与相应的酸或酰氯缩合。
上述的酰化反应优选在缩合试剂存在的条件下进行。优选的缩合试剂包括 1,3- 二环己基酰亚胺(DCC)、 二吡啶碳酸酯(2-DPC)、 1,3-二异丙基酰亚胺(DIPC)、 1-(3-二甲胺丙基) -3-乙基碳酰亚胺(EDCI); 更优选的试剂为 DCC, DIPC, EDCL 上述的酰化反应优选在催化剂存在的条件下进行。 优选的催化剂包括三级胺、 吡啶、 4-二甲胺基吡啶和 4-吡咯基吡啶; 更优选的催化剂为 4-二甲胺基吡啶和 4- 吡咯基吡啶。
上述的酰化反应优选在有机溶剂存在的条件下进行。优选的有机溶剂包括二甲 亚砜(DMSO)、 甲苯、二氯甲烷、 乙二醇二甲醚, 1,2-二氯乙垸、 四氢呋喃和 Ν,Ν- 二甲基甲酰胺(DMF);更优选的包括甲苯、四氢呋喃和 Ν,Ν-二甲基甲酰胺(DMF)。
反应温度为 10-12(TC, 优选为 30-90Ό。 本发明还涉及以本发明化合物作为活性成份的药物组合物。 该药物组合物可 根据本领域公知的方法制备。 可通过将本发明化合物与一种或多种药学上可接受 的固体或液体赋形剂和 /或辅剂结合, 制成适于人或动物使用的任何剂型。 本发明 化合物在其药物组合物中的含量通常为 0.1-95重量%。
本发明化合物或含有它的药物组合物可以单位剂量形式给药, 给药途径可为 肠道或非肠道, 如口服、 静脉注射、 肌肉注射、 皮下注射、 鼻腔、 口腔粘膜、 目艮、 肺和呼吸道、 皮肤、 阴道、 直肠等。
给药剂型可以是液体剂型、 固体剂型或半固体剂型。 液体剂型可以是溶液剂 (包括真溶液和胶体溶液)、 乳剂(包括 o/w型、 w/o型和复乳)、 混悬剂、 注射剂 (包括水针剂、 粉针剂和输液)、 滴眼剂、 滴鼻剂、 洗剂和搽剂等; 固体剂型可以 是片剂(包括普通片、 肠溶片、 含片、 分散片、 咀嚼片、 泡腾片、 口腔崩解片)、 胶囊剂 (包括硬胶囊、 软胶囊、 肠溶胶囊)、 颗粒剂、 散剂、 微丸、 滴丸、 栓剂、 膜剂、 贴片、 气 (粉) 雾剂、 喷雾剂等; 半固体剂型可以是软膏剂、 凝胶剂、 糊 剂等。
本发明化合物可以制成普通制剂、 也制成是缓释制剂、 控释制剂、 靶向制剂 及各种微粒给药系统。
为了将本发明化合物制成片剂, 可以广泛使用本领域公知的各种赋形剂, 包 括稀释剂、 黏合剂、 润湿剂、 崩解剂、 润滑剂、 助流剂。 稀释剂可以是淀粉、 糊 精、 蔗糖、 葡萄糖、 乳糖、 甘露醇、 山梨醇、 木糖醇、 微晶纤维素、 硫酸钙、 磷 酸氢钙、 碳酸钙等; 湿润剂可以是水、 乙醇、 异丙醇等; 粘合剂可以是淀粉桨、 糊精、 糖浆、 蜂蜜、 葡萄糖溶液、 微晶纤维素、 阿拉伯胶浆、 明胶浆、 羧甲基纤 维素钠、 甲基纤维素、 羟丙基甲基纤维素、 乙基纤维素、 丙烯酸树脂、 卡波姆、 聚乙烯吡咯垸酮、 聚乙二醇等; 崩解剂可以是干淀粉、 微晶纤维素、 低取代羟丙 基纤维素、 交联聚乙烯吡咯烷酮、 交联羧甲基纤维素钠、 羧甲基淀粉钠、 碳酸氢 钠与枸橼酸、 聚氧乙烯山梨糖醇脂肪酸酯、 十二垸基磺酸钠等; 润滑剂和助流剂 可以是滑石粉、 二氧化硅、 硬脂酸盐、 酒石酸、 液体石蜡、 聚乙二醇等。
还可以将片剂进一步制成包衣片,例如糖包衣片、薄膜包衣片、肠溶包衣片, 或双层片和多层片。
为了将给药单元制成胶囊剂, 可以将有效成分本发明化合物与稀释剂、 助流 剂混合, 将混合物直接置于硬胶囊或软胶囊中。 也可将有效成分本发明化合物先 与稀释剂、 黏合剂、 崩解剂制成颗粒或微丸, 再置于硬胶囊或软胶囊中。 用于制 备本发明化合物片剂的各稀释剂、 黏合剂、 润湿剂、 崩解剂、 助流剂品种也可用 于制备本发明化合物的胶囊剂。
为将本发明化合物制成注射剂, 可以用水、 乙醇、 异丙醇、 丙二醇或它们的 混合物作溶剂并加入适量本领域常用的增溶剂、 助溶剂、 pH调剂剂、 渗透压调节 剂。 增溶剂或助溶剂可以是泊洛沙姆、 卵磷脂、 羟丙基 -β-环糊精等; ρΗ调剂剂可 以是磷酸盐、 醋酸盐、 盐酸、 氢氧化钠等; 渗透压调节剂可以是氯化钠、 甘露醇、 葡萄糖、 磷酸盐、 醋酸盐等。 如制备冻干粉针剂, 还可加入甘露醇、 葡萄糖等作 为支撑剂。
此外, 如需要, 也可以向药物制剂中添加着色剂、 防腐剂、 香料、 矫味剂或 其它添加剂。 按照本发明, 发现通式 (I) 化合物在药理筛选中显示显著的生物活性, 是有 价值的抗肿瘤剂。 可用于抑制包括人在内的动物体内肿瘤的生长。
本发明的化合物经过药理体外实验, 发现对敏感的肿瘤有很强的抑制作用, 其 中最活性最强的与紫杉醇相近,'但对因 Ρ-糖蛋白过量表达而产生耐药的肿瘤的活 性是紫杉醇的几十倍。 本发明的化合物对因微管蛋白氨基酸残基突变而产生耐药 的肿瘤同样有效, 活性强于紫杉醇。
体内实验显示, 本发明化合物对人肺腺癌 Α549裸鼠异体移植瘤的生长抑制作 用较紫杉醇强。
为达到用药目的, 增强治疗效果, 本发明的药物或药物组合物可用任何公知 的给药方法给药。
本发明化合物药物组合物的给药剂量依照所要预防或治疗疾病的性质和严重 程度, 患者或动物的个体情况, 给药途径和剂型等可以有大范围的变化。 一般来 讲, 本发明化合物的每天的合适剂量范围为 0.001-150mg/Kg 体重, 优选为 ( -100mg/Kg体重, 更优选为 l-60mg/Kg体重, 最优选为 2-30mg/Kg体重。 上述 剂量可以一个剂量单位或分成几个剂量单位给药, 这取决于医生的临床经验以及 包括运用其它治疗手段的给药方案。
本发明的化合物或组合物可单独服用, 或与其他治疗药物或对症药物合并使 用。 当本发明的化合物与其它治疗药物存在协同作用时, 应根据实际情况调整它 的剂量。 具体实施方式 下面的实施例用来进一步说明本发明, 但是这并不意味着对本发明的任何限 制。
实施例 1 10-去乙酰 -三尖杉宁碱的制备
Figure imgf000009_0001
步骤 1 : 2' -叔丁基二甲基甲硅烧基 -三尖杉宁碱
将三尖杉宁碱(600mg, 0.721mmol)溶于 5mlDMF中, 加入咪唑 (245.5mg, 3.61mmol) 和叔丁基二甲氯硅烷 (543.5mg, 3.61mmol) ,70°C反应 5小时, 加入饱 和 NaHC03溶液 10ml, 用乙酸乙酯 3 X 50ml萃取, 合并乙酸乙酯层, 无水硫酸钠 干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 石油醚: 乙酸乙酯 =5 : 1。 得目标产物 637mg (93.4% ) o 步骤 2: 2,-叔丁基二甲基甲硅烷基- 10-去乙酰 -三尖杉宁碱
将 2,-叔丁基二甲基甲硅烷基 -三尖杉宁碱(98mg, 0.103mmol)溶于 6ml乙醇 中, 加入 85 %水合肼 (0.625ml),室温反应 2小时, 加入饱和 NH4C1溶液 10ml, 用乙酸乙酯 3 X 50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸 干, 硅胶柱层析, 石油醚: 乙酸乙酯 =2: 1。 得目标产物 79.4mg(84.8%)。 步骤 3: 10-去乙酰一三尖杉宁碱
将 2, -叔丁基二甲基甲硅烷基- 10-去乙酰 -三尖杉宁碱(32mg, 0.035mmol)溶 于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温反应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2 X 20ml洗, 水层用乙酸乙酯 3 X 50ml 萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 氯 仿: 甲醇 =20: 1。 得目标产物 25.7mg (91.92%)
1H 300M (CDC13): δ 8.10 (2Η, d, J = 7.2 Hz), 7.61 (IH, t, J =7.2 Hz), 7.50 (2H, t, J = 7.2 Hz), 7.28-7.39 (5H, m), 6.65 (IH, d, J= 9.0 Hz), 6.44 (IH, dq, J= 7.2, 1.4 Hz), 6.16 (IH, t, J= 8.1 Hz), 5.66 (IH, d, J= 6.9 Hz), 5.59 (IH, dd, J= 8.9, 2.7 Hz), 5.18 (IH, s), 4.91 (IH, d, J = 7.8 Hz), 4.91 (IH, brs), 4.39 (IH, d, J = 8.7 Hz), 4.24 (IH, brs), 4.19 (IH, d, J = 8.4 Hz), 3.87 (IH, d, J = 6.9 Hz), 3.72 (IH, brs), 2.53-2.62 (IH, m), 2.34 (3H, s), 2.24 (2H, d, J= 9.0 Hz), 1.82-1.88 (IH, m), 1.82 (3H, s), 1.76 (3H, s), 1.72 (3H, d, J= 7.5 Hz), 1.21 (3H, s), 1.11 (3H, s). ESI-MS: m/z [M+Na]+ 812.3. 实施例 2-4由反应下面反应流程制得
Figure imgf000010_0001
实施例 2 2- (3-叠氮苯甲酰基) -10-丙酰基 -三尖杉宁碱的制备
Figure imgf000010_0002
步骤 1-2: 同实施例 1中步骤 1-2描述的方法。
步骤 3: 2' -叔丁基二甲基甲硅垸基 -10-丙酰基 -三尖杉宁碱
将 2, -叔丁基二甲基甲硅烷基- 10-去乙酰 -三尖杉宁碱(155mg, 0.171mmol) 溶于 5ml THF中, 力口入 CeCl3 (8.4mg),冰浴, 加入丙酸酐(0.22ml, lJlmmol), 30°C反应 2小时, 加入 300ml乙酸乙酯, 用饱和 NaHC03溶液 2 X 50ml洗, 50ml 饱和 NaCl溶液洗, 水层用乙酸乙酯 150ml萃取, 合并乙酸乙酯层, 无水硫酸钠干 燥, 过滤, 将乙酸乙酯层蒸干, 硅胶柱层析, 丙酮: 石油醚 = 1 : 2。 得目标产物
Figure imgf000010_0003
步骤 4: 2,-叔丁基二甲基甲硅烷基- 7-三乙基甲硅烷基- 10-丙酰基 -三尖杉宁碱 将 2'-叔丁基二甲基甲硅烷基 -10-丙酰基 -三尖杉宁碱(193mg, 0.201mmol)溶 于 2mlDMF中, 加入咪唑(73mg, 1.07mmol)和三乙基氯硅烷(0.135ml)室温反 应 10小时,加入饱和 NaHC03溶液 10ml,用乙酸乙酯 3 X 50ml萃取,合并乙酸乙 酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 石油醚: 乙酸乙酯 =5: 1。 得目标产物 198mg (91.7% ). 步骤 5: 2'-叔丁基二甲基甲硅垸基 -2-去苯甲酰基 -7-三乙基甲硅烷基- 10-丙酰基- 三尖杉宁碱
将 2-叔丁基二甲基甲硅烷基- 7-三乙基甲硅烷基 -10-丙酰基 -三尖杉宁碱 ( 168mg, 0.156mmol)溶于 7ml二氯甲烷中, -28Ό冰-甲醇浴, 滴入 TritonB (0.138ml, 0.313mmol), 反应 15分钟, 加入 20ml二氯甲烷, 用饱和氯化铵溶液 20ml洗, 水层用乙酸乙酯 2 X 50ml萃取, 有机层用 20ml饱和 NaC 溶液洗, 有机 层用无水硫酸钠干燥, 过滤, 将有机层蒸干, 硅胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 1。 得目标产物 110mg (73%)。 步骤 6: 2- (3-叠氮苯甲酰基) -10-丙酰基 -三尖杉宁碱
2'-叔丁基二甲基甲硅垸基 -2-去苯甲酰基 -7-三乙基甲硅垸基 -10-丙酰基-三 尖杉宁碱(35.7mg, 0.0368mmol)溶于 lml甲苯中, 加入间叠氮苯甲酸(62.5mg, 0.383mmol), PP (5.7mg, 0.0383mmol)和 DCC (79mg, 0.383mmol), 65°C反应 10小时, 加入 0. 1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶 柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行 脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温反 应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2X 20ml洗, 水层用乙酸 乙酯 3 X 50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅 胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。 得目标产物 20.3mg, 两步总收率 62.3 %。
1H 300M (CDC13): δ 7.89 (IH, d, J = 8.1 Hz), 7.80 (1H, m), 7.48 (1H, t, J = 7.8 Hz), 7.31-7.42 (5H, m), 7.24 (IH, ddd, J = 1.2, 2.4, 8.1 Hz), 6.49 (IH, d, J = 8.7 Hz), 6.40 (IH, dq, J= 1.5, 6.9 Hz), 6.28 (IH, s), 6.17 (IH, t, J= 8.1 Hz), 5.66 (IH, d, J- 6.9 Hz), 5.58 (IH, dd, J = 2.7, 8.7 Hz), 4.94 (1H, d, J = 7.8 Hz), 4.68 (IH, brs), 4.40 (IH, m), 4.30 (IH, d, J= 8.4 Hz), 4.17 (IH, d, J - 8.4 Hz), 3.80 (IH, d, J= 6.9 Hz), 3.63 (IH, brs), 2.47-2.62 (3H, m), 2.37 (3H, s), 2.31 (2H, overlap), 1.82-1.95 (IH, m), 1.78-1.80 (6H, brs), 1.72 (3H, dd, J= 1.5, 6.9 Hz), 1.67 (3H, s), 1.25 (3H, s), 1.23 (3H, t, J= 7.8 Hz), 1.14 (3H, s). ESI-MS: m/z [M+Na]+ 909.4 实施例 3 2- (3-甲氧基苯甲酰基) -10-丙酰基 -三尖杉宁碱的制备
Figure imgf000012_0001
步骤 1-5: 同实施例 2中步骤 1一 5描述的方法。
步骤 6: 2- (3-甲氧基苯甲酰基) -10 -丙酰基 -三尖杉宁碱
2' -叔丁基二甲基甲硅垸基- 2-去苯甲酰基 -7-三乙基甲硅烷基- 10-丙酰基-三 尖杉宁碱(37.2mg, 0.0383mmol)溶于 1ml甲苯中,加入间甲氧基苯甲酸(58.3mg, 0.383mmol), PP (5.7mg, 0.0383mmol)和 DCC (79mg, 0.383mmol) , 65Ό反应 24小时, 加入 0. 1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶 柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行 脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml) 和 HF ( 0.375ml) ,室温反 应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2 X 20ml洗, 水层用乙酸 乙酯 3 X 50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅 胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。 得目标产物 21.0mg, 两步总收率 62.5 %。
1H 300M (CDC13): 5 7.71 (IH, d, J = 8.1 Hz), 7.62-7.69 (1H, m), 7.29-7.43 (6H, m), 7.15(1H, ddd, J= 0.9, 2.7, 8.3 Hz), 6.51 (IH, d, J = 8.7 Hz), 6.42 (IH, dq, J= 1.5, 7.2 Hz), 6.39 (IH, s), 6.19 (1H, t, J= 7.5 Hz), 5.66 (IH, d, J= 6.9 Hz), 5.59 (IH dd, J= 2.7: 8.6 Hz), 4.94 (IH, d, J= 7.5 Hz), 4.69 (IH, brs), 4.36-4.44 (1H, m), 4.33 (IH, d, J =8.4 Hz), 4.17 (IH, d, J = 8.4 Hz), 3.88 (3H, s), 3.79 (IH, d, J = 6.9 Hz), 3.63 (IH, brs), 2.45-2.63 (3H, m), 2.33 (3H, s), 2.26 (2H, dd, J= 3.0, 9.0 Hz), 1.86-1.92 (IH, m), 1.80 (3H, pseud-t, J =1.2 Hz), 1.79 (3H, d, J =1.2 Hz), 1.72 (3H, dd, J = 1.2, 6.9Hz), 1.67 (3H, s), 1.25 (3H, s), 1.23 (3H, t, J = 7.5 Hz), 1.14 (3H, s). ESI-MS: m/z [M+Na]+ 898.4. 实施例 4: 10-丙酰基 -三尖杉宁碱的制备
Figure imgf000013_0001
步骤 1-3: 同实施例 2中步骤 1-3描述的方法。 步骤 4: 10-丙酰基 -三尖杉宁碱
将 2'-叔丁基二甲基甲硅烷基 -10-丙酰基 -三尖杉宁碱(26mg, 0.027mmol)溶 于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温反应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2 X20ml洗, 水层用乙酸乙酯 3 X 50ml 萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 氯 仿: 甲醇 =20: 1。 得目标产物 21. lmg (92%).
1H 300M (CDC13): δ 8.11 (IH, d, J= 6.9 Hz), 7.61 (1H, t, J= 7.5 Hz), 7.50 (2H, t, J = 7.5 Hz), 7.31-7.42 (5H, m), 6.54 (IH, d, J= 9.0 Hz), 6.43 (IH, dq, J= 1.2, 6.9 Hz), 6.28 (IH, s), 6.20 (IH, t, J- 7.5 Hz), 5.66 (IH, d, J= 7.2 Hz), 5.61 (IH, dd, J= 3.0, 8.7 Hz), 4.93 (IH, dd, J= 2.1, 9.5 Hz), 4.70 (IH, d, J= 2.4 Hz), 4.36-4.42 (1H, m), 4.29 (IH, d, J= 8.7 Hz), 4.18 (IH, d, J= 8.4), 3.79 (IH, d, J= 7.2), 3.66 (IH, brs), 2.47-2.62 (3H, m), 2.35 (3H, s), 2.25-2.34 (2H, m), 1.86-1.91 (IH, m), 1.80 (3H, s), 1.79 (3H, s), 1.72 (3H, dd, J= 1.2, 6.9 Hz), 1.67 (3H, s), 1.25 (3H, s), 1.23 (3H, t, J= 7.5 Hz), 1.14 (3H, s). ESI-MS: m/z [M+Na]+ 884.4. 实施例 5 2- (3-叠氮苯甲酰基) -三尖杉宁碱的制备
Figure imgf000013_0002
步骤 1 : 同实施例 1中步骤 1描述的方法。 步骤 2: 2-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -三尖杉宁碱
将 2'-叔丁基二甲基甲硅烷基 -三尖杉宁碱(351mg, 0.329mmol)溶于 7ml二 氯甲垸中, -28Ό·冰一甲醇浴, 滴入 TritonB (0.308ml) ,反应 15分钟, 加入 20ml 二氯甲垸, 用饱和氯化铵溶液 20ml洗, 水层用乙酸乙酯 2 X 50ml萃取, 有机层用 20ml饱和 NaCl溶液洗, 有机层用无水硫酸钠干燥, 过滤, 将有机层蒸干, 硅胶柱 层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 1。 得目标产物 209mg (67.4%)。 步骤 3 : 2- (3—叠氮苯甲酰基) -三尖杉宁碱
2'-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -三尖杉宁碱(62mg, 0.0662mmo l)溶 于 1ml甲苯中,加入间叠氮苯甲酸(121.4mg, 0.744mmol) , PP C l lmg, 0.0742mmol) 和 DCC ( 153.51mg, 0.744mmol) , 65°C反应 10小时, 加入 0.1ml甲醇, 过滤, 固 体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行脱保护, 溶于 1.4ml乙腈中, 依次加 入吡啶 ( 0.683ml) 和 HF (0.375ml),室温反应 24小时, 加入 30ml乙酸乙酯, 用 饱和 NaHC03溶液 2x20ml洗, 水层用乙酸乙酯 3><50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: ' 3: 2。 得目标产物 43mg, 两步总收率 83.4%。
1H 300M (CDC13): δ 7.89 (1H, d, J = 8.1 Hz), 7.79 (IH, m), 7.48 (IH, t, J = 7.8 Hz), 7.31-7.40 (5H, m), 7.22-7.25 (IH, m), 6.49 (IH, d, J = 8.7 Hz), 6.41 (IH, dq, J = 1.5, 6.9 Hz), 6.27 (1H, s), 6.17 (IH, t, J= 8.5 Hz), 5.66 (IH, d, J= 7.2 Hz), 5.58 (IH, dd, J =2.7, 8.7 Hz), 4.94 (IH, d, J= 7.5 Hz), 4.68 (IH, d, J = 2.7 Hz), 4.39 (IH, dd, J= 6.9, 9.45 Hz), 4.30 (IH, d, J = 8.4 Hz), 4.16 (IH, d, J = 8.4 Hz), 3.79 (IH, d, J = 7.2 Hz), 2.48-2.62 (IH, m), 2.34 (3H, s), 2.30 (2H, d, J = 9.0 Hz), 2.24 (3H, s), 1.82-1.91 (IH, m), 1.79 ( 6H, s), 1.73 (3H, d, J = 6.9 Hz), 1.67 (3H, s), 1.25 (3H, s), 1.14 (3H, s). ESI-MS: m/z [M+Na]+ 895.4. 实施例 6 2- (3-甲氧基苯甲酰基) -三尖杉宁碱的制备
Figure imgf000014_0001
步骤 1 : 同实施例 1中步骤 1描述的方法。 步骤 2: 同实施例 5中步骤 2描述的方法。
步骤 3 : 2- ( 3-甲氧基苯甲酰基) -三尖杉宁碱
2, -叔丁基二甲基甲硅垸基 -2-去苯甲酰基-三尖杉宁碱(56mg, 0.0598mniol) 溶于 1ml 甲苯中, 加入间甲氧基苯甲酸 (113mg, 0.742mmol ) , PP ( llmg, 0.0742匪 ol) 和 DCC ( 153.51mg, 0.744匪 ol), 65°C反应 10小时, 加入 0.1ml 甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶柱层析, 石油醚: 乙 酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行脱保护, 溶于 1.4ml 乙腈中, 依次加入吡啶(0.683ml)和 HF (0.375ml),室温反应 24小时,加入 30ml 乙酸乙酯, 用饱和 NaHC03溶液 2x20ml洗, 水层用乙酸乙酯 3><50ml萃取, 合并 乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 正己烷: 乙酸 乙酉 丙酮 =8: 3: 2。 得目标产物 37.3mg, 两步总收率 64.5 %。
1H 300M (CDC13): δ 7.70 (1Η, d, J = 7.5 Hz), 7.68 (1H, m), 7.30-7.42 (6H, m), 7.13 (1H, dd, J= 2.7, 7.5 Hz), 6.55 (1H, d, J = 8.7 Hz), 6.42 (1H, dq, J = 1.2, 6.9 Hz), 6.26 (1H, s), 6.18 (1H, t, J = 7.8 Hz), 5.65 (1H, d, J = 6.9 Hz), 5.58 (1H, dd, J = 3.0, 8.55 Hz), 4.93 (1H, d, J= 7.5 Hz), 4.69 (1H, d, J= 3.0 Hz), 4.38 (1H, dd, J- 6.6, 11.0 Hz), 4.31 (1H, d, J= 8.4 Hz), 4.17 (1H, d, J= 8.4 Hz), 3.86 (3H, s), 3.77 (1H, d, J= 6.9 Hz), 2.48-2.62 (1H, m), 2.32 (3H, s), 2.28 (2H, d, J = 7.2 Hz), 1.86-1.90 (1H, m), 1.79 (3H, s), 1.78 (3H, s), 1.71 (3H, d, J = 6.9 Hz), 1.66 (3H, s), 1.25 (3H, s), 1.14 (3H, s). ESI-MS: m/z [M+Na]+ 884.4.
实施例 7-14由反应下面反应流程制得
Figure imgf000015_0001
实施例 7 2- (3-甲氧基苯甲酰基) -7-丙酰基 -三尖杉宁碱的制备
Figure imgf000016_0001
步骤 1一 2: 同实施例 1中步骤 1-2描述的方法
步骤 3 : 2,一叔丁基二甲基甲硅垸基 -10-三乙基甲硅烷基一三尖杉宁碱
将 2,-叔丁基二甲基甲硅烷基 -10-去乙酰一三尖杉宁碱(300mg,0.332mmol)溶 于 lOmlTHF中, N2保护, 一 10°C冰盐浴, 加入 N, 0—双(三乙基甲硅垸基) 一 三氟乙酰胺(1ml)和 LHMDS (3ul),反应 10分钟,加入饱和 NaHC03溶液 10ml, 用乙酸乙酯 3x50ml萃取,合并乙酸乙酯层,无水硫酸钠干燥,将乙酸乙酯层蒸干, 硅胶柱层析, 石油醚: 乙酸乙酯 =5: 1。 得目标产物 314mg (92.6% ) o
步骤 4: 2,-叔丁基二甲基甲硅烷基 -10-三乙基甲硅垸基 -7-丙酰基 -三尖杉宁碱
将 2,-叔丁基二甲基甲硅烷基 -10-三乙基甲硅烷基 -三尖杉宁碱
(300mg,0.171mmol)溶于 5mlTHF中, 冰浴, 加入丙酸酐(0.40ml),室温反应 20 小时, 加入 300ml乙酸乙酯, 用饱和 NaHC03溶液 2x50ml洗, 50ml饱和 NaCl溶 液洗, 水层用乙酸乙酯 150ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 过滤, 将乙酸乙酯层蒸干,硅胶柱层析,丙酮:石油醚 = 1 : 2。得目标产物 301.0mg(95.1%)。 步骤 5: 2,-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基-三 尖杉宁碱
将 2,-叔丁基二甲基甲硅烷基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖杉宁碱 ( 168mg, 0.156mmol )溶于 7ml二氯甲烷中, -28 °C冰-甲醇浴,滴入 TritonB( 0.138ml, 0.313mmol) ,反应 15分钟, 加入 20ml二氯甲烷, 用饱和氯化铵溶液 20ml洗, 水 层用乙酸乙酯 2x50ml萃取,有机层用 20ml饱和 NaCl溶液洗,有机层用无水硫酸 钠干燥, 过滤, 将有机层蒸干, 硅胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 1。 得目标产物 110mg(73%)。 步骤 6: 2- (3-甲氧基苯甲酰基) -7-丙酰基 -三尖杉宁碱
2,-叔丁基二甲基甲硅垸基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱(26mg, 0.0268mmol)溶于 lml甲苯中, 加入间甲氧基苯甲酸 (40.76mg, 0.268mmol), PP (2.38mg, 0.016mmol)和 DCC (55.28mg, 0.268醒 ol), 65°C反 应 10小时, 加入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅 胶柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进 行脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温 反应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2x20ml洗, 水层用乙酸 乙酯 3x50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶 柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。 得目标产物 18.5mg, 两步总收率 72.9%。
1H 300M (CDC13): 5 7.70 (IH, d, J = 7.2 Hz), 7.62 (IH, brs), 7.31-7.43 (6H, m), 7.15 (IH, dd, J= 2.1, 8.1 Hz), 6.61 (IH, d, J= 8.7 Hz), 6.44 (IH, q, J= 6.9 Hz), 6.15 (IH, t, J= 8.4 Hz), 5.66 (IH, d, J = 6.6 Hz), 5.59 (IH, dd, J= 2.4, 9.0 Hz), 5.45 (IH, dd, J = 7.2, 10.2 Hz), 5.28 (IH, s), 4.91 (IH, d, J= 8.4 Hz), 4.69 (IH, d, J= 2.1 Hz), 4.35 (IH, d, J= 8.4 Hz), 4.20 (IH, d, J= 8.7 Hz), 3.97 (IH, overlapped), 3.96 (IH, d, J= 6.9 Hz), 3.87 (3H, s), 3.6 (IH, brs), 2.46-2.56 (IH, m), 2.34 (3H, s), 2.25 (2H, m), 2.24 (2H, q, J =7.8 Hz), 1.91-1.95 (IH, m), 1.86 (3H, s), 1.81 (6H, brs), 1.73 (3H, d, J= 6.9 Hz), 1.20 (3H, s), 1.09 (3H, t, J = 7.5 Hz), 1.08 (3H, s). ESI-MS: m/z [M+Na]+ 898.3, [M+K]+ 914.3. 实施例 8 2- (3-叠氮苯甲酰基) -7-丙酰基-尖杉宁碱的制备
Figure imgf000017_0001
步骤 1-5 : 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (3-叠氮苯甲酰基) -7-丙酰基 -三尖杉宁碱
2,-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱 (20mg,0.0206mmol)溶于 lml甲苯中, 加入间叠氮苯甲酸 (33.6mg, 0.206匪 ol), PP ( 1.8mg, 0.0124mmol)和 DCC (42.5mg, 0.206腿 ol), 65。C反 应 10小时, 加入 0. 1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅 胶柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进 行脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温 反应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2 X 20ml洗, 水层用乙 酸乙酯 3 X 50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。 得目标产物 15.0mg, 两步总收 率 76.5 %。
H (CDC13, 300MHz): δ 7.89 (IH, d, J = 7.2 Hz), 7.79 (1H, brs), 7.49 (IH, t, J = 7.2 Hz), 7.21-7.40 (6H, m), 6.57 (1H, d, J= 8.7 Hz), 6.42 (1H, q, J= 6.7 Hz), 6.14 (1H, t, J = 8.9 Hz), 5.66 (1H, d, J= 7.5 Hz), 5.59 (1H, dd, J= 2.7, 9.0 Hz), 5.46 (1H, dd, J= 7.5, 10.5 Hz), 5.29 (1H, s), 4.92 (1H, d, J= 8.5 Hz), 4.68 (1H, d J= 2.7 Hz), 4.32 (1H, d, J = 8.1 Hz), 4.19 (1H, d, J = 8.1 Hz), 3.98 (1H, d, J = 7.2 Hz), 3.97 (1H overlapped), 3.60 (1H, brs 2.52 (1H, ddd, J = 7.3, 9.5, 15.0 Hz), 2.34 (3H, s), 2.21-2.34 (2H, m), 2.25 (2H, q, J= 7.6 Hz), 1.92 (1H, m), 1.84 (3H, s), 1.83 (3H, s), 1.80 (3H, s), 1.72 (3H, d, J = 6.9 Hz), 1.21 (3H, s), 1.09 (3H, t, J = 7.5 Hz), 1.08 (3H, s). ESI-MS: m/z [M+Na]+ 909.3, [M+K]+ 925.3. 实施例 9: 2- (3—氯苯甲酰基) -7-丙酰基 -三尖杉宁碱
Figure imgf000018_0001
步骤 1-5 : 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (3-氯苯甲酰基) -7-丙酰基 -三尖杉宁碱
2,-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱(23mg 0.0237mmol)溶于 lml甲苯中, 加入间氯苯甲酸(37.1mg,
0.237mmol), PP (2.1mg O.OHmmol)和 DCC (48.9mg 0.237 ol), 65°C反应 10小时, 加入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶 柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行 脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml) 和 HF (0.375ml),室温反 应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2x20ml洗, 水层用乙酸乙 酯 3x50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱 层析,正己烷:乙酸乙酯:丙酮 =8: 3 2。得目标产物 17.5mg,两步总收率 78.3 % Ή (CDC13, 500MHz): 5 8.10 (1H, s), 8.00 (1H, d, J= 7.5 Hz), 7.59 (1H dd, J= 1.5, 8.0 Hz), 7.46 (1H, t, J= 8.0 Hz), 7.30-7.414 (5H, m), 6.59 (1H, d, J= 8.5 Hz), 6.44 (1H, q J= 7.0 Hz), 6.13 (1 t, J= 9.0 Hz), 5.62 (1H, d, J= 7.5 Hz), 5.59 (1H, dd, J= 2.5, 9.0 Hz), 5.44 (1H, dd, J= 7.5 10.5 Hz), 5.28 (1H s), 4.92 (1H, d, J= 8.5 Hz), 4.69 (1H, d, J= 1.5 Hz), 4.30 (1H, d, J= 8.5 Hz), 4.18 (1H, d, J= 9.0 Hz), 3.97 (1H, d, J= 6.5 Hz), 3.97 (1H overlapped), 3.60 (1H, brs), 2.51 (1H, ddd J= 7.3, 9.5, 15.0 Hz), 2.34 (3H, s), 2.28 (2H, m overlapped), 2.25 (2H, q, J= 7.6 Hz) 1.92 (1H, m), 1.84 (3H, s), 1.82 (3H, s), 1.81 (3H, s), 1.73 (3H, d, J= 6.9 Hz), 1.20 (3H s), 1.09 (3H, t, J= 7.5 Hz), 1.07 (3H, s). ESI-MS: m/z [M+Na]+ 902.3, [M+K]+ 918.3.
实施例 10 2- (3-甲基 -2-丁烯酰基) -7-丙酰基 -三尖杉宁碱的制备 步骤 1-5 : 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (3-甲基 -2-丁烯酰基) -7-丙酰基 -三尖杉宁碱
2, -叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱(20mg,0.0206mmol)溶于 1ml甲苯中,加入 3—甲基一 2—丁烯酸(20.6mg, 0.206mmol), PP ( 1.8mg, 0.0124mmol)和 DCC (42.5mg, 0.206mmol) 65。C反应 10小时, 加入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶 柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行 脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF ( 0.375ml),室温反 应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2x20ml洗, 水层用乙酸乙 酯 3x50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱 层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2,得目标产物 7.5mg, 两步总收率 45.2%。 1H (CDC13, 300MHz): δ 7.29-7.42 (5H, m), 6.59 (1Η, d, J = 8.7 Hz), 6.46 (1H, q, J = 6.9 Hz), 6.13 (1H, t, J= 8.9 Hz), 5.69 (1H, s), 5.58 (1H, dd, J = 1.8, 8.7 Hz), 5.39-5.45 (2H, overlapped), 5.25 (1H, s), 4.91 (1H, d, J = 7.8 Hz), 4.67 (1H, d, J = 1.8 Hz), 4.46 (1H, d, J= 8.1 Hz), 4.20 (1H, d, J = 8.1 Hz), 3.97 (1H, brs), 3.85 (1H, d, J = 6.3 Hz), 3.47 (1H, brs), 2.49 (1H, ddd, J = 7.3, 9.6, 14.5 Hz), 2.28 (1H, dd, J = 9.0, 15.3 Hz), 2.24 (2H, q, J= 7.2 Hz), 2.23 (3H, s), 2.20 (3H, s), 2.16 (1H, dd, J= 15.4, 9.0 Hz), 1.97 (3H, s), 1.91 (1H, m), 1.85 (3H, s), 1.79 (3H, s), 1.79 (3H, s), 1.76 (3H, d, J= 7.2 Hz), 1.20 (3H, s), 1.08 (3H, t, J = 8.1 Hz), 1.04 (3H, s). ESI-MS: m/z [M+Na]+ 846.3.3, [M+K]+862.3. 实施例 11 2- (3-甲基 -3-丁烯酰基) -7-丙酰基 -三尖杉宁碱的制备
Figure imgf000019_0001
步骤 1-6: 同实施例 10中步骤 1-6描述的方法。 为实施例 10中步骤 6的 物, 收率 27%。 1H (CDCI3, 300MHz): 5 7.29-7.42 (5H, m), 6.59 (IH, d, J = 8.7 Hz), 6.46 (IH, q, J = 6.7 Hz), 6.11 (IH, t, J = 8.7 Hz), 5.58 (1H, d, J = 8.7 Hz), 5.41 and 5.40 (2H, overlapped), 5.24 (IH, s), 4.99 (IH, s), 4.92 (2H, brs), 4.67 (IH, d, J = 1.8 Hz), 4.51 (IH, d, J = 8.1 Hz), 4.23 (1H, d, J = 8.1 Hz), 3.95 (IH, brs), 3.84 (IH, d, J= 6.3 Hz), 3.48 (IH, brs), 3.11 (IH, d, J= 15.9 Hz), 3.03 (IH, d, J= 15.0 Hz), 2.49-2.53 (IH, m), 2.17-2.29 (3H, m), 2.22 (3H, s), 2.12 (IH, dd, J= 9.0, 15.4 Hz), 1.92 (IH, m), 1.87 (3H, s), 1.85 (3H, s), 1.79 (3H, s), 1.78 (3H, s), 1.76 (3H, d, J = 7.2 Hz), 1.19 (3H, s), 1.08 (3H, t, J=7.5 Hz), 1.01 (3H, s). ESI-MS: m/z [M+Na]+ 846.3.3, [M+K]+ 862.3. 实施例 12 2- (3-甲基苯甲酰基) -7-丙酰基 -三尖杉宁减的制备
Figure imgf000020_0001
步骤 1-5 : 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (3-甲基苯甲酰基) -7-丙酰基 -三尖杉宁碱
2'-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱 (20.6mg,0.0213mmol ) 溶于 1ml 甲苯中, 加入间甲基苯甲酸 (58mg, 0.426mmol) , PP (4mg, 0.027mmol)和 DCC ( 87.7mg, 0.425mmol) , 65°C反应 10小时, 加入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶 柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行 脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml),室温反 应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2x20ml洗, 水层用乙酸乙 酯 3x50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱 层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。得目标产物 8.1mg, 两步总收率 44.4% 1H (CDC13, 300MHz): δ 7.89-7.93 (2Η, m), 7.28-7.41 (7H, m), 6.62 (IH, d, J= 9.3 Hz), 6.44 (IH, q, J= 6.6 Hz), 6.13 (IH, t, J= 8.4 Hz), 5.66 and 5.62 (2H, overlapped), 5.45 (IH, dd, J = 7.2, 10.8 Hz), 5.28 (IH, s), 4.92 (IH, d, J = 9.6 Hz), 4.71 (IH, d, J = 1.8 Hz), 4.32 (1H, d, J = 8.4 Hz), 4.21 (IH, d, J = 7.5 Hz), 3.96 (IH, d, J = 6.6 Hz), 3.96 (IH, brs, overlapped), 3.57 (IH, brs), 2.48-2.58 (IH, m), 2.43 (3H, s), 2.36 (3H, s), 2.25 (2H, q, J = 7.5 Hz), 2.20-2.30 (2H, m, overlapped), 1.91-1.96 (IH, m), 1.85 (3H, s), 1.82 (6H, s), 1.72-1.74 (3H, d, J = 6.9 Hz), 1.21 (3H, s), 1.08 (3H, t, J= 7.5 Hz), 1.08 (3H, s). ESI-MS: m/z [M+Na]+ 882.4. 实施例 13 2- (3-氰基苯甲酰基 )-7-丙酰基 -三尖杉宁碱的制备
Figure imgf000021_0001
步骤 1-5: 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (3-氰基苯甲酰基) -7-丙酰基 -三尖杉宁碱
2'-叔丁基二甲基甲硅垸基 -2-去苯甲酰基 -10-三乙基甲硅烷基 -7-丙酰基 -三尖 杉宁碱 ( 12.3mg,0.0127mmol) 溶于 lml 甲苯中, 加入间氰基苯甲酸 ( 18.6mg, 0.127mmol), PP ( 1.2mg, 0.008 lmmol)和 DCC (26.22mg, 0.127mmol), 65°C反 应 10小时, 加入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸千, 硅 胶柱层析, 石油醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进 行脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF (0.375ml) ,室温 反应 24小时, 加入 30ml乙酸乙酯, 用饱和 NaHC03溶液 2><20ml洗, 水层用乙酸 乙酯 3x50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶 柱层析,正己垸: 乙酸乙酯: 丙酮 =8: 3: 2。得目标产物 6mg,两步总收率 54.4% 1H (CDC13, 300MHz): δ 8.43 (1Η, s), 8.36 (1H, d, J- 7.5 Hz), 7.90 (1H, d, J= 7.8 Hz), 7.67 (1H, t, J= 7.2 Hz), 7.32-7.42 (5H, m), 6.53 (1H, d, J= 8.7 Hz), 6.50 (1H, q, J = 6.6 Hz), 6.16 (1H, t, J= 8.7 Hz), 5.65 and 5.63 (2H, overlapped), 5.47 (1H, dd, J= 4.8, 11 Hz), 5.31(1H, s), 4.93 (1H, d, J= 9.0 Hz), 4.71 (1H, d, J= 2.4 Hz), 4.25 (1H, d, J = 7.5 Hz), 4.19 (1H, d, J= 8.9 Hz), 4.00 (1H, d, J= 6.6 Hz), 2.46-2.58 (1H, m), 2.36 (3H, s), 2.26 (2H, q, J= 7.8 Hz), 2.22-2.29 (2H, m, overlapped), 1.92-1.97 (1H, m), 1.85 (6H; s), 1.79 (3H, s), 1.72 (3H, d, J= 6.9 Hz), 1.22 (3H, s), 1.09 (3H, t, J= 7.5 Hz), 1.08 (3H s). ESI-MS: m/z [M+Na]+ 893.4, [M+K]+ 909.4. 实施例 14 2- (2-丁烯酰基) -7-丙酰基 -三尖杉宁碱的制备
Figure imgf000021_0002
步骤 1-6: 同实施例 7中步骤 1-6描述的方法。 只是将步骤 6中的间甲氧基苯甲酸 换为 2-丁烯酸。
步骤 1-5 : 同实施例 7中步骤 1-5描述的方法。
步骤 6: 2- (2-丁烯酰基) -7-丙酰基 -三尖杉宁碱
2,-叔丁基二甲基甲硅烷基 -2-去苯甲酰基 -10-三乙基甲硅垸基 -7-丙酰基 -三尖 杉宁碱(37.9mg,0.039mmol)溶于 1ml甲苯中,加入 2-丁烯酸(33.57mg, 0.39mmol) , PP (5.78mg, 0.039匪 ol)和 DCC ( 80.5mg, 0.39匪 ol), 65°C反应 10小时, 加 入 0.1ml甲醇, 过滤, 固体用乙酸乙酯洗涤, 合并滤液并蒸干, 硅胶柱层析, 石油 醚: 乙酸乙酯 =8: 1。 得到的产物混有 DCU等杂质, 不再纯化进行脱保护, 溶于 1.4ml乙腈中, 依次加入吡啶 (0.683ml)和 HF ( 0.375ml),室温反应 24小时, 加 入 30ml乙酸乙酯,用饱和 NaHC03溶液 2x20ml洗,水层用乙酸乙酯 3 <50ml萃取, 合并乙酸乙酯层, 无水硫酸钠干燥, 将乙酸乙酯层蒸干, 硅胶柱层析, 正己烷: 乙酸乙酯: 丙酮 =8: 3: 2。 得目标产物 20.4mg, 两步总收率 69%
1H (CDC13, 300MHz): δ 7.32-7.40 (5Η, m), 7.10 (IH, dq, J= 7.8, 15.1 Hz), 6.58 (IH, d, J= 9.3 Hz), 6.46 (IH, q, J= 6.9 Hz), 6.14 (IH, t, J= 8.4 Hz), 5.88 (IH, d, J= 15.1 Hz), 5.59 (IH, dd, J= 2.4, 9.3 Hz), 5.46 (IH, d, J= 6.6 Hz), 5.43 (IH, dd, J= 7.8, 10.7 Hz), 5.26 (IH, s), 4.92 (IH, dd, J = 2.2, 9.3 Hz), 4.68 (IH, d, J = 2.4 Hz), 4.44 (IH, d, J = 8.4 Hz), 4.20 (IH, d, J= 9.3 Hz), 3.96 (IH, brs), 3.87 (IH, d, J= 6.9 Hz), 3.44 (1H, brs); 2.46-2.53 (IH, m), 2.26 (3H, s), 2.22-2.31 (2H, m, overlapped), 1.96 (3H, d, J= 6.9 Hz): 1.92 (IH, m, overlapped), 1.88 (3H, s), 1.80 (3H, s), 1.79 (3H, s), 1.76 (3H, d, J = 6.6 Hz), 1.20 (3H, s), 1.08 (3H, t, J= 6.9 Hz), 1.04 (3H, s). ESI-MS: m/z [M+Na]+ 832.3.
药理实验:
实验例 1 本发明的化合物细胞水平的细胞毒活性筛选实验
取对数生长期细胞培养于 96孔培养板内, 每孔 ΙΟΟμΙ (含 1000-1200个肿瘤细 胞) 。 次日, 给药组加入含有不同浓度化合物, 每药设 4〜5个剂量组, 每组至 少设三个平行孔。 对照组加入与化合物等体积的溶剂。 置 37Ό, 5%C02 温箱 中培养, 4天后弃去培养液, 每孔加入 200 μ 10.2% ΜΤΤ溶液 (RPMI 1640配制)。 37°C孵育 4小时,弃去上清,每孔加入 DMSO 200μ1溶解甲簪颗粒,轻度振荡后, 用酶标仪, 在参考波长 450nm、 检测波长 570nm条件下测定光密度值 (OD)。 以 溶剂对照处理的肿瘤细胞为对照组,用下面公式计算药物对肿瘤细胞的抑制率, 并计算 IC50:
对照组平均 OD值 一 给药组平均 OD值
抑制率二 一 X 100%
对照组平均 OD值
(结果列于表 1中)
表 1. 本发明的部分化合物的体外细胞毒活性结果
I so (Μ)
样 品
KB KB/V Α549 A549/Taxol 实施例 1 3.37X10-7 >lxlO"6 >lxl0— 6 >1χ10"6 实施例 2 1.03 10-9 1.53X10-7 8.79χ10"8 >1χ1。-6
实施例 3 1.38X10-7 8.02xl0-7 7.04X10-8 >1><10-6 实施例 4 9.74xl0"9 4.85χ10"7 2.01X10—7 4.2 ΙχΙΟ-7 实施例 5 5.90X10-10 2.23x10-7 >1χ10—6 >1χ10-6 实施例 6 1·44χ1(Τ7 8.94x1ο—7 2·10χ1(Γ7 >1χ10-6 实施例 7 8.78xl0"9 2.79x10- 7 2·51χ10-7 >1χ10-6 实施例 8 2.39χ10-9 2.73 l0-7 9·36χ1(Γ9 >1χ10-6 紫杉醇 8.66xl0-9 9.59X10—7 2.32X10-7 >1χ1。-6 三尖杉宁碱 5.18X10—9 Ι.ΟΟχΙΟ"6 1.33x10-7 >1χ10"6 多烯紫杉醇 9.33 1Q-8 8.90χ10"7 2.19X10"7 >1χ10"6
KB为人口腔上皮癌细胞株; KB/V为人肺腺癌细胞长春新碱耐药株; A549为人肺腺癌细胞株; A549/Taxol为人肺腺癌细胞的紫杉醇耐药株。 表 2. MTT法测定实施例 8化合物对多株肿瘤细胞的细胞毒作用
IC50 (Mol/L)
细胞株
Taxol Lx2-32c
HCT-8 7.3 X10"10 3.2 X10"10
Bel-7402 1.3 X10"8 8.7 X10"9
A2780 1.3 X10"9 3.6X10-9
A549 5.2 X10"9 9.4 X10"10
A549/T 2.6 X10"8 1.4X10—9
MCF-7 4.1 X10"10 6.8 X10-10
MCF-7D 3.3 X10"7 2.7X10—7
BGC-823 6.3 X10"9 1.3 X10"9
BGC-803 2.5 X10-9 2.4 X10"9
KB 1.8 X10"9 4.9 X10"10
A549/T: 人肺腺癌耐 Taxol细胞株; MCF-7/D: 人乳腺癌耐阿霉素细胞株。 实验例 2 本发明的化合物的体内活性实验
1受试药物:
名称: 实施例 8, 紫杉醇
制剂: 实施例 8, 紫杉醇均为原料, 白色粉末。
配制方法: 紫杉醇, 实施例 8化合物均用协和药厂提供的注射用溶剂配成所需 浓度。
2实验动物:
动物来源: 中国医学科学院实验动物研究所动物繁育场
种属: BALB/c(nu/nu)裸小鼠
合格证号: 京动许 017号
体重: 19一 22g
性别: 早
各组动物数: 每组 6-8只
饲养环境: SPF级。
3 实验步骤:
动物经 1 周适应后, 皮下接种人肺腺癌 A549或人卵巢癌 A2780或人胃癌 BGC-823细胞, 待肿瘤生长至 100— 300mm3后, 将动物随机分组 (d0)。 给药剂量 在人肺腺癌 A549, 紫杉醇为 10mg/kg, 实施例 8为 5mg/kg, 腹腔注射给药。 给药 时间紫杉醇和实施例 8均为 d0-d4天, 每天 1次, 共 5次; 在人卵巢癌 A2780和 人胃癌 BGC-823,紫杉醇均为 30mg/kg,实施例 8为 7.5mg/kg、 15mg/kg和 30mg/kg, 给药时间紫杉醇在人卵巢癌 A2780为 d0-d3天, 每天 1 次, 共 4次, 在人胃癌
BGC-823为 d0-d2天, 每天 1次, 共 3次, 实施例 8均为 d0-d3天, 每天 1次, 共
4次; 每周测 2次瘤体积, 称鼠重, 记录数据。待肿瘤长至 d30或 d35天, 处死裸 鼠, 测量瘤体积, 并剥瘤称瘤重和体重, 肿瘤体积 (V)计算公式为:
V= l/2xaxb2 其中 a、 b分别表示长、 宽。
对人卵巢癌 A2780裸鼠异体移植瘤的生长抑制作用表 3。
对人胃癌 BGC-823裸鼠异体移植瘤的生长抑制作用表 4。
对 Lewis肺癌的生长抑制作用, 结果见表 5 。
对人肺癌 A549裸鼠异体移植瘤的生长抑制作用, 结构见表 6 。 表 3. 发明化合物对人卵巢癌 A2780裸鼠异体移植瘤的生长抑制作用
Tv RTV
动物体重(g)
剂量 动物数 x+SD T/C 组别
(mg/kg) dO dn 开始 结束 (%) dO dn
体重 体重
对照组 7 7 22. 0 25. 1 149. 9+59. 0 1447. 4+941. 2 9. 7
紫杉醇 30x4 7 6 22. 7 23. 3 137. 9+21. 0 604. 8+525. 0* 4. 4 45. 4
7. 5x4 7 6 22. 4 25. 5 127. 6+65. 9 989. 3+658. 9 7. 8 80. 3 实施例
15x4 7 5 22. 0 25. 2 130. 2+36. 0 855. 6+500. 3 6. 6 68. 1 -
8
30x4 7 6 22. 0 22. 3 157. 1+56. 2 529. 6+454. 8* 3. 4 34. 9 注: dO: 分笼给药时间; dm 第 1次给药后 30天。 *P0<0. 05 vs对照 表 4.本发明化合物对人胃癌 BGC-823裸鼠异体移植瘤的生长抑制作用
Tv
动物体重 (g) RTV 剂量 动物数 x+SD T/C 组别
(mg/kg) dO dn 开始 结束 (%) dO dn
体重 体重
对照组 7/7 ' 26. 0 27. 7 136. 3+33. 5 3290. 3+709. 8 27. 33 紫杉醇 30x3 7/4 25. 2 23. 9 98. 8+47. 35 104. 9+144. 9** 0. 66 2. 41
7. 5x4 7/5 24. 7 26. 1 101. 1+17. 4 2057. 5+1756. 4 17. 45 63. 84 实施例
15x4 7/4 25. 2 23. 8 104. 4+16 1156. 6+403. 9* 9. 27 33. 90 8
30x4 7/5 25. 0 23. 9 99. 7+34. 3 177. 1土 199. 0** 0. 47 4. 57 注: dO: 分笼给药时间; dn: 第 1次给药后 30天。 *P<0. 05, **P〈0. 01 vs 对照 表 5. Lx2-32c对小鼠 Lewis肺癌的生长抑制作用 Dosage Body weight(g) Tumor weight(g) Inhibition
Group
(mg/kg) Initial end Average SD (%)
Control 19.6 24.0 2.87 1.13
Taxol 10x6 19.7 19.4 1.96 0.81 31.64
Lx2-32c 2.5x8 20.0 22.0 2.07 0.22 27.77
5x8 20.0 20.4 1.96 0.68 32.46
10x8 19.5 16.8 0.69 0.33 76.08
表 6.对人肺腺癌 A549裸鼠异体移植瘤的生长抑制作用
Tv RTV
Body w eight(g)
Dosage Number x+sd T/C
Group
(mg/kg) Initial/end (%)
Initial end Initial end
Control 7/7 22.1 27.6 411+136 4862+1861 11.82
Taxol 30x3 8/6 22.0 24.3 468+135 2152+474 4.6 38.9
7.5x3 7/6 21.6 21.8 431+94 3090+900 7.2 60.7
Lx2-32c 15x3 8/7 22.4 25.1 432+115 2897+950 6.7 56.7
30x3 8/6 21.8 23.2 415+85 1646+450 4.0 33.56
4结论:
紫杉醇能抑制人肺腺癌 A549、 人卵巢癌 A2780、 Lewis肺癌和人胃癌 BGC-823 裸鼠异体移植瘤的生长; 实施例 8对人肺腺癌 A549、 人卵巢癌 A2780、 Lewis肺 癌裸鼠异体移植瘤的生长抑制作用较紫杉醇强, 对人胃癌 BGC-823裸鼠异体移植 瘤的生长抑制作用与紫杉醇相当。

Claims

权 利 要 求 书
1、 如通式 (I) 所示的三尖杉宁碱衍生物
Figure imgf000027_0001
(I)
其特征在于,
Ri选自氢, TMS, TES, TBS或 -COX^ Xi选自 d-5垸基;
R2选自氢,取代的或非取代的 Cri5直链或支链烷基, C2-15链烯基, C2-15炔基, 未取代、 单取代或多取代的芳基及杂芳基, -COX2 ; -COX3-COOX4
-COX3-CONX4X5;
R3选自氢, 取代的或非取代的 -15直链或支链烷基, ¾-15链烯基, ¾-15炔 基, 未取代、 单取代或多取代的芳基及杂芳基, -OX6; -SX6; -NHX6; -OCOX6; · 并且,
X2, X3, ¾, X5, X6独立地选自氢;取代的或非取代的 -15直链或支链烷基, ¾-15链烯基 C2-15炔基, 未取代、 单取代或多取代的芳基及杂芳基; 所述垸基上的取代基选自羟基, 氨基, 羧基, 羰基, Cr5烷氧基, 卤素, Cr5 烷氧羰基, N-d-s烷基氨基甲酰基, 氰基, 硝基; 所述芳基及杂芳基上的取代基选自羟基, 羟甲基, 卤素, Cr5烷基, Cr5烷氧 基, -5链烯基, 酰基, 酰氧基, 硝基, 氨基, 酰胺基, 氰基, 叠氮基;
2、 根据根据权利要求 1所述的化合物, 其特征在于
所述的 Cri5链烯基选自乙烯基, 丙烯基, 异丙烯基, 丁烯基, 异丁烯基, 己 稀基;
所述的 cri5炔基选自乙炔基, 丙炔基, 异丙炔基, 丁炔基, 异丁炔基, 己炔 基;
所述的芳基选自苯基, 萘基, 联苯基;
所述的杂芳基选自呋喃基, 噻吩基, 吡啶基, 苯并呋喃, 联吡啶基; 所述的卤素选自 F, CI, Br, I。
3、 根据权利要求 2所述的化合物, 其特征在于, Ri和 R2独立的选自氢, 甲酰基, 乙酰基, 丙酰基, 丁酰基。 、 根据权利要求 3所述的化合物, 其特征在于, 所述的化合物选自
10-去乙酰基-.三尖杉宁碱 2-(3-叠氮苯甲酰基) -:三尖杉宁减 2- (3-甲氧基苯甲酰基) -:三尖杉宁碱 2-(3-叠氮苯甲酰基 )-10-丙酰基-.三尖杉宁碱 2-(3-甲氧基苯甲酰基) -10-丙酰基-三尖杉宁碱
10-丙酰基-.三尖杉宁碱 2-(3-甲氧基苯甲酰基) -7-丙酰基-.三尖杉宁碱 2-(3-叠氮苯甲酰基 )-7-丙酰基-.三尖杉宁碱
2-(3-氯苯甲酰基) -7-丙酰基-三尖杉宁碱 2-(3-甲基苯甲酰基 )-7-丙酰基-.三尖杉宁碱 2-(3-氰基苯甲酰基 )-7-丙酰基-三尖杉宁碱 2-(3-甲基 -2-丁烯酰基) -7-丙酰基-三尖杉宁碱
2 --(3-甲基 -3-丁烯酰基) -7-丙酰基-.三尖杉宁碱
2-(2-丁烯酰基) -7-丙酰基-三尖杉宁碱
5、 制备权利要求 1一 4所述的化合物的方法, 其特征在于,
Figure imgf000028_0001
Ila 即用 C-10位修饰或未修饰的三尖杉宁碱为原料, 将 C-7位羟基与相应的酸或酰氯 缩合;
Figure imgf000029_0001
用 C-10位和 7位修饰的三尖杉宁碱, 脱除 2位苯甲酰基, 再与相应的酸或酰氯缩 合。
6、 根据权利要求 5的制备方法, 其特征在于, 所述的酰化反应中
所用的缩合试剂包括 1,3-二环己基酰亚胺、 二吡啶碳酸酯、 1,3-二异丙基酰亚胺、 1-(3-二甲胺丙基) -3-乙基碳酰亚胺。
7、 根据权利要求 5的制备方法, 其特征在于, 所述的酰化反应中所用的催化剂包 括三级胺、 吡啶、 4-二甲胺基吡啶和 4-吡咯基吡啶。
8、 根据权利要求 5的制备方法, 其特征在于, 所述的酰化反应中所用的有机溶剂 包括二甲亚砜、 甲苯、二氯甲烷、 乙二醇二甲醚, 1,2-二氯乙烷、 四氢呋喃和 Ν,Ν- 二甲基甲酰胺。 -
9、 一种药物组合物, 其特征在于, 含有作为活性成分的权利要求 1一 4 中至少一 种化合物和药学上可接受的载体。 '
10、 如权利要求 1一 4任一化合物在制备抗肿瘤药物中的应用。
11、 根据权利要求 11的应用, 其特征在于, 所述的肿瘤包括多药耐药人肺腺癌、 多药耐药卵巢癌、 多药耐药的人胃癌、 敏感的人肺腺癌、 敏感的卵巢癌、 敏感的 人胃癌。
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