CN110483549B - 一种硝基咪唑吡喃类抗结核药物的制备方法 - Google Patents
一种硝基咪唑吡喃类抗结核药物的制备方法 Download PDFInfo
- Publication number
- CN110483549B CN110483549B CN201910811857.4A CN201910811857A CN110483549B CN 110483549 B CN110483549 B CN 110483549B CN 201910811857 A CN201910811857 A CN 201910811857A CN 110483549 B CN110483549 B CN 110483549B
- Authority
- CN
- China
- Prior art keywords
- chloro
- nitro
- reaction
- tert
- imidazole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- LHFJSOKWGNOTPS-UHFFFAOYSA-N 2-nitro-1H-imidazole 2H-pyran Chemical compound C1OC=CC=C1.[O-][N+](=O)C1=NC=CN1 LHFJSOKWGNOTPS-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229940072185 drug for treatment of tuberculosis Drugs 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000814 tuberculostatic agent Substances 0.000 title description 3
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- ZLHZLMOSPGACSZ-NSHDSACASA-N (6s)-2-nitro-6-[[4-(trifluoromethoxy)phenyl]methoxy]-6,7-dihydro-5h-imidazo[2,1-b][1,3]oxazine Chemical compound O([C@H]1CN2C=C(N=C2OC1)[N+](=O)[O-])CC1=CC=C(OC(F)(F)F)C=C1 ZLHZLMOSPGACSZ-NSHDSACASA-N 0.000 claims abstract description 7
- 238000007363 ring formation reaction Methods 0.000 claims abstract description 7
- 238000010534 nucleophilic substitution reaction Methods 0.000 claims abstract description 6
- 238000010934 O-alkylation reaction Methods 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000006266 etherification reaction Methods 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 239000012467 final product Substances 0.000 claims abstract description 3
- 230000007062 hydrolysis Effects 0.000 claims abstract 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- -1 imidazole-1-yl Chemical group 0.000 claims description 24
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 22
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 12
- BOJZBRDIZUHTCE-UHFFFAOYSA-N 2-chloro-5-nitro-1h-imidazole Chemical compound [O-][N+](=O)C1=CN=C(Cl)N1 BOJZBRDIZUHTCE-UHFFFAOYSA-N 0.000 claims description 11
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 10
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 claims description 9
- 230000035484 reaction time Effects 0.000 claims description 8
- JDNPUJCKXLOHOW-UHFFFAOYSA-N 1-(bromomethyl)-4-(trifluoromethoxy)benzene Chemical compound FC(F)(F)OC1=CC=C(CBr)C=C1 JDNPUJCKXLOHOW-UHFFFAOYSA-N 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 7
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 239000012312 sodium hydride Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims 4
- 238000010511 deprotection reaction Methods 0.000 claims 2
- 229960004063 propylene glycol Drugs 0.000 claims 2
- KGWNRZLPXLBMPS-UHFFFAOYSA-N 2h-1,3-oxazine Chemical compound C1OC=CC=N1 KGWNRZLPXLBMPS-UHFFFAOYSA-N 0.000 claims 1
- 238000005804 alkylation reaction Methods 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- 238000006902 nitrogenation reaction Methods 0.000 claims 1
- 238000001953 recrystallisation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- FLDSOXFRYVOGFK-UHFFFAOYSA-N 2,5-dinitro-1h-imidazole Chemical compound [O-][N+](=O)C1=CN=C([N+]([O-])=O)N1 FLDSOXFRYVOGFK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 4
- 230000002365 anti-tubercular Effects 0.000 abstract description 3
- 239000002360 explosive Substances 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 30
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- OBBGZXFKKHAEKW-VIFPVBQESA-N (2s)-1-[tert-butyl(dimethyl)silyl]oxy-3-(2-chloro-4-nitroimidazol-1-yl)propan-2-ol Chemical compound CC(C)(C)[Si](C)(C)OC[C@@H](O)CN1C=C([N+]([O-])=O)N=C1Cl OBBGZXFKKHAEKW-VIFPVBQESA-N 0.000 description 12
- LELNFDPWGWCRTB-INIZCTEOSA-N tert-butyl-[(2S)-3-(2-chloro-4-nitroimidazol-1-yl)-2-[[4-(trifluoromethoxy)phenyl]methoxy]propoxy]-dimethylsilane Chemical compound C([C@@H](CO[Si](C)(C)C(C)(C)C)OCC=1C=CC(OC(F)(F)F)=CC=1)N1C=C([N+]([O-])=O)N=C1Cl LELNFDPWGWCRTB-INIZCTEOSA-N 0.000 description 10
- UTLWGZGIECKZNZ-SCSAIBSYSA-N (2S)-1-chloro-3-(2-chloro-4-nitroimidazol-1-yl)propan-2-ol Chemical compound ClC[C@H](CN1C(=NC(=C1)[N+](=O)[O-])Cl)O UTLWGZGIECKZNZ-SCSAIBSYSA-N 0.000 description 9
- BRLQWZUYTZBJKN-GSVOUGTGSA-N (+)-Epichlorohydrin Chemical compound ClC[C@@H]1CO1 BRLQWZUYTZBJKN-GSVOUGTGSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 201000009671 multidrug-resistant tuberculosis Diseases 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- YANSSVVGZPNSKD-QMMMGPOBSA-N tert-butyl-dimethyl-[[(2s)-oxiran-2-yl]methoxy]silane Chemical compound CC(C)(C)[Si](C)(C)OC[C@@H]1CO1 YANSSVVGZPNSKD-QMMMGPOBSA-N 0.000 description 2
- 201000008827 tuberculosis Diseases 0.000 description 2
- 108010077805 Bacterial Proteins Proteins 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229960003350 isoniazid Drugs 0.000 description 1
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229950008905 pretomanid Drugs 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- JQXXHWHPUNPDRT-WLSIYKJHSA-N rifampicin Chemical compound O([C@](C1=O)(C)O/C=C/[C@@H]([C@H]([C@@H](OC(C)=O)[C@H](C)[C@H](O)[C@H](C)[C@@H](O)[C@@H](C)\C=C\C=C(C)/C(=O)NC=2C(O)=C3C([O-])=C4C)C)OC)C4=C1C3=C(O)C=2\C=N\N1CC[NH+](C)CC1 JQXXHWHPUNPDRT-WLSIYKJHSA-N 0.000 description 1
- 229960001225 rifampicin Drugs 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
- A61P31/06—Antibacterial agents for tuberculosis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/188—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-O linkages
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Communicable Diseases (AREA)
- Pulmonology (AREA)
- Pharmacology & Pharmacy (AREA)
- Oncology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
本发明涉及一种硝基咪唑吡喃类抗结核候选药物PA‑824的制备方法。该方法涉及五步反应,其首先经亲核取代、水解、硅醚化反应得到一个关键中间体6,再经O‑烷基化、环合反应得到终产物PA‑824。整个反应所需原料廉价易得,避免使用易爆炸原料2,4‑二硝基咪唑,反应条件温和,操作简单,易于规模化生产。
Description
技术领域
本发明属于药物化学领域,具体涉及一种硝基咪唑吡喃类抗结核药物(PA-824)的制备方法,更具体地说涉及通过引入(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)作为关键中间体的PA-824的制备方法。
背景技术
Pretomanid(1),淡黄色结晶性粉末,分子式为:C13H12N3O5F3,分子量为:359.26。PA-824是一种硝基咪唑吡喃类化合物,该药主要通过抑制细菌蛋白质合成和细胞壁霉菌酸合成的双重作用机制达到抑制结核杆菌的效果。抗菌活性优于异烟肼,对敏感结核杆菌和耐利福平结核杆菌活性较好,对于隔离的多耐药结核(MDR-TB)有潜在的疗效,并且有可能缩短治疗周期,与临床使用的抗结核药物无交叉耐药性,目前处于预注册阶段。结构式为:
目前,有关PA-824制备方法的参考文献包括:专利US6087358、CN104177372、CN107915747。这些文献中提供的PA-824的制备方法,是以2,4-二硝基咪唑和(S)-叔丁基二甲基甲硅烷基缩水甘油醚为起始原料制得PA-824,爆炸性的2,4-二硝基咪唑以及价格昂贵的(S)-叔丁基二甲基甲硅烷基缩水甘油醚的使用,不利于工业化生产。鉴于此,本发明设计了新的合成路线。
发明内容
本发明的目的是针对以上存在的问题与不足,提供一种制备PA-824的有效方法,通过引入关键中间体6,提供一种反应条件更温和、后处理更简单、成本更低和方法更合理的PA-824的制备方法。
由于化合物(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)利用未见文献报道的新方法合成,并用于PA-824的制备,因此,本发明包括6的合成及其在制备PA-824中的应用。
本发明的合成路线是:
本发明的制备方法,包括如下步骤:
1)亲核取代反应:2-氯-4-硝基咪唑(2)与(S)-环氧氯丙烷(3)在碱的作用下,制得化合物(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4);
2)水解反应:(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4)与NaOH水溶液反应,得到(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5);
3)硅醚化反应:(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)与叔丁基二甲基氯硅烷(TBDMSCl)在碱性条件下,制得(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6);
4)O-烷基化反应:(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄在碱的作用下,制得(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7);
5)环合反应:(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)在四丁基氟化铵(TBAF)作用下脱保护,进而在碱性条件下环合得到目标化合物(S)-6-(4-(三氟甲氧基)苄氧基)-6,7-二氢-2-硝基-5H-咪唑并[2,1-b][1,3]恶嗪PA-824(1)。
上述步骤1)中,在有机溶剂中,2-氯-4-硝基咪唑(2)与(S)-环氧氯丙烷(3)在碱性条件下进行亲核取代反应得到化合物(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4),反应温度为60~80℃,反应时间为0.5~1.0h。其中,所述有机溶剂选自丙酮、乙腈、乙醇、DMF、甲醇、四氢呋喃中的一种或几种,所述碱选自三乙胺、氢氧化钠、碳酸氢钠、碳酸钾、哌啶中的一种。
上述步骤2)中,在NaOH溶液中加入(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4)进行水解反应得到(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5),反应温度为60~90℃,反应时间为2~5h,NaOH溶液的浓度为1~10%。
上述步骤3)中,在N,N-二甲基甲酰胺(DMF)中加入(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)和咪唑,然后滴加叔丁基二甲基氯硅烷(TBDMSCl)的DMF溶液,滴毕后室温反应,反应时间为6~10h,(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)与咪唑、TBDMSCl的摩尔比为1:(1.8~2.5):(1.2~1.5)。
上述步骤4)中,氮气保护下,在四氢呋喃中,(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄在氢化钠NaH作用下进行O-烷基化反应得到(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7),反应温度为室温,反应时间为3~6h,(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄、NaH的摩尔比为1:(1.2-1.5):(1.5~2.0)。
上述步骤5)中,在四氢呋喃中,(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)在等摩尔量的四丁基氟化铵(TBAF)作用下脱保护,然后在-10~0℃条件下加入氢化钠NaH,氮气保护下进行环合反应得到最终产物(S)-6-(4-(三氟甲氧基)苄氧基)-6,7-二氢-2-硝基-5H-咪唑并[2,1-b][1,3]恶嗪(PA-824)(1),反应温度为室温,反应时间为1~2h,(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)与TBAF、NaH的摩尔比为1:(1.0~1.2):(1.5~2.5)。
本发明的优点:以2-氯-4-硝基咪唑(2)与(S)-环氧氯丙烷(3)为原料制备硝基咪唑吡喃类抗结核候选药物PA-824,不仅避免了易爆炸原料2,4-二硝基咪唑的使用,易于规模化制备;同时(S)-环氧氯丙烷的使用极大地降低生产成本,反应条件较为温和,操作简单便捷。
具体实施方式
通过以下具体实施方式的描述,对本发明的上述内容作进一步的详细说明。对于本领域的技术人员而言,不应将此理解为本发明上述主题的范围仅限于以下的方法描述;凡基于本发明上述内容所实现的技术均属于本发明的范围。
1、(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4)的合成
将2-氯-4-硝基咪唑(30.0g,203.36mmol)和210mL(S)-环氧氯丙烷加入到500mL三颈瓶中,加入8.4g(61.01mmol)碳酸钾,混合均匀后升温至70℃反应30min,TLC检测原料点消失。冷却至室温后过滤,滤液减压浓缩至100mL,过滤得白色晶体,将滤液减压蒸干,乙酸乙酯/石油醚(1:2)打浆,抽滤,石油醚洗涤,合并两次产品,得到35.7g白色晶体4,产率73.13%。 1H NMR(400MHz,DMSO)δ8.49(s,1H),5.83(s,1H),4.24(q,J=7.9Hz,1H),4.12–4.00(m,2H),3.67(tdd,J=11.4,8.1,3.5Hz,2H);13C NMR(101MHz,DMSO)δ144.51,132.19,124.32,68.52,50.71,46.63.
2、(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)的合成
将化合物4(35.0g,145.81mmol)和600mL2%的NaOH溶液加入到1000mL三颈瓶中,加完之后升温至90℃反应3h,反应完毕,浓缩,加入200mL甲醇于室温下搅拌1h,过滤,滤液减压除去溶剂,得到29.73g黄色固体5,产率92.01%。 1H NMR(400MHz,DMSO)δ8.43(s,1H),5.24(d,J=5.4Hz,1H),4.91(t,J=5.5Hz,1H),4.19(dd,J=14.0,3.0Hz,1H),3.96(dd,J=14.0,8.7Hz,1H),3.79(d,J=2.4Hz,1H),3.44(dt,J=10.3,5.0Hz,1H),3.32(dt,J=11.3,5.9Hz,1H);13C NMR(101MHz,DMSO)δ144.39,132.15,124.46,69.57,63.16,50.88.
3、(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)的合成
将化合物5(22.5g,101.53mmol)溶于150mL N,N-二甲基甲酰胺(DMF)中,加入15.2g(223.36mmol)咪唑,搅拌40min后,滴加叔丁基二甲基氯硅烷(19.9g,131.99mmol)的DMF溶液(50mL),滴毕后室温反应7h,反应结束后,加入150mL水淬灭反应,水层用乙酸乙酯萃取(3×150mL),合并有机相,饱和氯化钠溶液洗涤,无水硫酸钠干燥,过滤,减压除去溶剂得粗品,将粗品溶于60mL乙酸乙酯中,冰浴下滴加90mL正己烷,滴毕后,在此温度下搅拌30min,过滤,滤液蒸干得24.3g白色固体6,产率71.26%。 1HNMR(400MHz,DMSO)δ8.45(s,1H),5.40(d,J=4.1Hz,1H),4.19(dd,J=14.0,3.2Hz,1H),3.99(dd,J=14.0,8.5Hz,1H),3.83(s,1H),3.63(dd,J=10.4,4.6Hz,1H),3.48(dd,J=10.4,6.8Hz,1H),0.87(s,9H),0.05(s,6H);13CNMR(101MHz,DMSO)δ144.36,131.93,124.45,69.09,64.85,50.70,25.73(3C),17.90,-5.47,-5.49;ESI-MS:[M+H]+336.25.
4、(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)的合成
氮气保护下,将化合物6(20.0g,59.55mmol)和四丁基碘化铵(2.22g,5.96mmol)溶于140mL干燥的四氢呋喃(THF)中,冷却至0℃后分批加入3.57g(89.32mmol)氢化钠,加完之后搅拌30min,滴加4-三氟甲氧基溴苄(19.74g,77.41mmol)的THF溶液(30mL),滴毕,搅拌1h后升温至室温反应3h,TLC检测原料点消失。加入120mL水淬灭反应,水层用乙酸乙酯萃取(3×120mL),合并有机相,饱和氯化钠溶液洗涤,无水硫酸钠干燥,过滤,减压除去溶剂,用硅胶(200目-300目)柱层析(石油醚:乙酸乙酯=1:1,体积比)得到20.08g浅黄色油状化合物7,产率66.12%。 1H NMR(400MHz,DMSO)δ8.40(s,1H),7.27(d,J=8.7Hz,2H),7.22(d,J=8.4Hz,2H),4.61(d,J=12.3Hz,1H),4.45(d,J=12.3Hz,1H),4.24(dd,J=14.4,3.4Hz,1H),4.15(dd,J=14.4,8.1Hz,1H),3.82–3.76(m,1H),3.74–3.68(m,2H),0.86(s,9H),0.05(s,6H);13C NMR(101MHz,DMSO)δ147.66,144.47,137.39,132.04,129.33(2C),124.03,121.29,120.62,118.74,77.00,70.16,62.12,48.53,25.65(3C),17.84,-5.58,-5.61.
5、(S)-6-(4-(三氟甲氧基)苄氧基)-6,7-二氢-2-硝基-5H-咪唑并[2,1-b][1,3]恶嗪PA-824(1)的合成
将化合物7(17.1g,33.53mmol)溶于120mL干燥的四氢呋喃(THF)中,滴加1.0MTBAF的THF溶液(41.0mL,41.0mmol),滴毕后室温反应30min。将反应液冷却至0℃后分批加入2.68g(67.06mmol)氢化钠NaH,加完之后升温至室温、氮气保护下反应1h,反应结束后,加入100mL水淬灭反应,水层用乙酸乙酯萃取(3×100mL),合并有机相,无水硫酸钠干燥,过滤,减压除去溶剂,异丙醇/正己烷重结晶得10.26g浅黄色固体,产率85.17%。HPLC测定纯度大于99%,mp:149~150℃; 1H NMR(400MHz,DMSO)δ8.05(s,1H),7.44(d,J=8.5Hz,2H),7.33(d,J=8.2Hz,2H),4.74–4.63(m,3H),4.48(d,J=12.0Hz,1H),4.34–4.19(m,3H);13C NMR(101MHz,DMSO)δ147.73,147.11,142.10,137.30,129.40(2C),121.34,120.94,118.79,118.01,68.74,67.86,66.59,46.75;ESI-MS:[M+H]+360.24,[M+Na]+382.23。
Claims (1)
1.一种硝基咪唑吡喃类抗结核药物(1)的制备方法,包括亲核取代、水解、硅醚化、O-烷基化、环合反应,其特征在于,
1)亲核取代反应:2-氯-4-硝基咪唑(2)与(S)-环氧氯丙烷(3)在碱的作用下,制得化合物(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4);
2)水解反应:(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4)与NaOH水溶液反应,得到(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5);
3)硅醚化反应:(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)与叔丁基二甲基氯硅烷在碱性条件下,制得(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6);
4)O-烷基化反应:(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄在碱的作用下,制得(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7);
5)环合反应:(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)在四丁基氟化铵(TBAF)作用下脱保护,进而在碱性条件下环合得到硝基咪唑吡喃类抗结核药物(1);
步骤1)中,2-氯-4-硝基咪唑(2)与(S)-环氧氯丙烷(3)在碱性条件下进行亲核取代反应得到化合物(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4),反应温度为60~80°C,反应时间为0.5~1.0 h,所述碱选自碳酸钾;
步骤2)中,在NaOH水溶液中加入(S)-1-氯-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(4)进行水解反应得到(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5),反应温度为90°C,反应时间为2~5 h,NaOH水溶液的浓度为1~10%;
步骤3)中,在N,N-二甲基甲酰胺中加入(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)和咪唑,然后滴加叔丁基二甲基氯硅烷的DMF溶液,滴毕后室温反应,反应时间为6~10 h,(S)-3-(2-氯-4-硝基-1H-咪唑-1-基)-1,2-丙二醇(5)与咪唑、叔丁基二甲基氯硅烷的摩尔比为1:(1.8~2.5):1.2;
步骤4)中,氮气保护下,在四氢呋喃中,(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄在氢化钠NaH作用下进行O-烷基化反应得到(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7),反应温度为室温,反应时间为3~6 h,(S)-1-(叔丁基二甲基硅氧基)-3-(2-氯-4-硝基-1H-咪唑-1-基)丙-2-醇(6)与4-三氟甲氧基溴苄、NaH的摩尔比为1:(1.2-1.5):(1.5~2.0);
步骤5)中,在四氢呋喃中,(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)在四丁基氟化铵(TBAF)作用下脱保护,然后在-10~0°C条件下加入氢化钠NaH,氮气保护下进行环合反应,异丙醇/正己烷重结晶,得到最终产物(S)-6-(4-(三氟甲氧基)苄氧基)-6,7-二氢-2-硝基-5H-咪唑并[2,1-b] [1,3]恶嗪PA-824(1),反应温度为室温,反应时间为1~2 h,(S)-1-(3-(叔丁基二甲基硅氧基)-2-(4-(三氟甲氧基)苄氧基)丙基)-2-氯-4-硝基-1H-咪唑(7)与TBAF、NaH的摩尔比为1:1:(1.5~2.5)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910811857.4A CN110483549B (zh) | 2019-08-30 | 2019-08-30 | 一种硝基咪唑吡喃类抗结核药物的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910811857.4A CN110483549B (zh) | 2019-08-30 | 2019-08-30 | 一种硝基咪唑吡喃类抗结核药物的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110483549A CN110483549A (zh) | 2019-11-22 |
CN110483549B true CN110483549B (zh) | 2021-03-05 |
Family
ID=68555325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910811857.4A Active CN110483549B (zh) | 2019-08-30 | 2019-08-30 | 一种硝基咪唑吡喃类抗结核药物的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110483549B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113717197B (zh) * | 2021-10-13 | 2023-09-12 | 沈阳红旗制药有限公司 | 抗结核药物Pretomanid的制备方法及其应用 |
CN114249747A (zh) * | 2021-12-27 | 2022-03-29 | 苏州虞美景盛新药开发有限公司 | 一种用于治疗广泛耐药性结核病的硝基咪唑吡喃类药物的新合成工艺 |
CN115385930B (zh) * | 2022-08-19 | 2024-04-05 | 药璞(上海)医药科技有限公司 | 一种普瑞玛尼的制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1705670A (zh) * | 2002-10-11 | 2005-12-07 | 大塚制药株式会社 | 2,3-二氢-6-硝基咪唑并[2,1-b]噁唑化合物 |
US20060063929A1 (en) * | 2004-09-17 | 2006-03-23 | Junzo Otera | Process for preparing for imidazopyran derivatives |
CN1982306A (zh) * | 2005-12-15 | 2007-06-20 | 南京圣和药业有限公司 | 光学活性的α-取代的2-甲基-5-硝基咪唑-1-乙醇衍生物 |
CN102020658A (zh) * | 2009-09-11 | 2011-04-20 | 中国中化股份有限公司 | 一种新型化合物及其制备方法 |
CN103450220A (zh) * | 2012-06-05 | 2013-12-18 | 上海阳帆医药科技有限公司 | 一种新型硝基咪唑类化合物及其在药学中的用途 |
-
2019
- 2019-08-30 CN CN201910811857.4A patent/CN110483549B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1705670A (zh) * | 2002-10-11 | 2005-12-07 | 大塚制药株式会社 | 2,3-二氢-6-硝基咪唑并[2,1-b]噁唑化合物 |
US20060063929A1 (en) * | 2004-09-17 | 2006-03-23 | Junzo Otera | Process for preparing for imidazopyran derivatives |
CN1982306A (zh) * | 2005-12-15 | 2007-06-20 | 南京圣和药业有限公司 | 光学活性的α-取代的2-甲基-5-硝基咪唑-1-乙醇衍生物 |
CN102020658A (zh) * | 2009-09-11 | 2011-04-20 | 中国中化股份有限公司 | 一种新型化合物及其制备方法 |
CN103450220A (zh) * | 2012-06-05 | 2013-12-18 | 上海阳帆医药科技有限公司 | 一种新型硝基咪唑类化合物及其在药学中的用途 |
Non-Patent Citations (1)
Title |
---|
"Repositioning Antitubercular 6‑Nitro-2,3-dihydroimidazo[2,1‑b][1,3]oxazoles for Neglected Tropical Diseases:Structure−Activity Studies on a Preclinical Candidate for Visceral Leishmaniasis"及其Supporting Information;Andrew M. Thompson等,;《J. Med. Chem.》;20160222;第59卷;第2530-2550页其Supporting Information的第S1和S12页 * |
Also Published As
Publication number | Publication date |
---|---|
CN110483549A (zh) | 2019-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108047261B (zh) | 一种克立硼罗的制备方法 | |
CN110483549B (zh) | 一种硝基咪唑吡喃类抗结核药物的制备方法 | |
CN109942576B (zh) | Irbinitinib及中间体的制备方法 | |
CN106831737B (zh) | 维帕他韦及其衍生物的制备 | |
CN112778303A (zh) | Cdk4/6激酶抑制剂shr6390的制备方法 | |
WO2023109968A2 (zh) | 非奈利酮及其中间体的合成方法 | |
CN110606850A (zh) | 一种3-苯并[4,5]咪唑[1,2-a]吡嗪-1-胺类化合物及其制备方法和应用 | |
CN110642798A (zh) | 一种n-取代-1,4-二氢-2,3-喹喔啉二酮化合物的绿色合成方法 | |
CN114957247A (zh) | Rimegepant及其中间体的合成方法 | |
CN110655517A (zh) | 一种多替拉韦开环杂质的制备方法及其杂质 | |
CN101469008B (zh) | 卡培他滨羟基衍生物、其制备方法和用于制备卡培他滨 | |
CN104710417B (zh) | 氮杂吲哚类衍生物及其合成方法 | |
CN108191849B (zh) | 一种抗表皮生长因子受体耐药性突变抑制剂的制备方法、相关中间体及应用 | |
CN113896732B (zh) | 抗癌药物卡马替尼的制备方法及其应用 | |
CN110818714A (zh) | 一种恩替卡韦中间体的合成方法 | |
CN110845406B (zh) | 喹啉类化合物的制备方法 | |
CN110655506A (zh) | 一种替加氟的制备方法 | |
CN105272921A (zh) | 一种制备Ceritinib的方法及其中间体化合物 | |
CN104557877A (zh) | 一种阿伐那非中间体及其制备方法和应用 | |
CN114163445A (zh) | 拉罗替尼中间体及其制备方法 | |
CN109153652A (zh) | 1-(芳基甲基)喹唑啉-2,4(1h,3h)-二酮的制备工艺 | |
CN108912055B (zh) | 一种合成抗病毒药物西多福韦中间体和布昔洛韦中间体的方法 | |
CN110655507B (zh) | 一种抗肿瘤类药物替加氟的制备方法 | |
CN113045475A (zh) | 一种5-溴-7-甲基吲哚的制备方法 | |
CN111560021B (zh) | 一种德高替尼中间体及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |