CN111606844A - 一种瑞利巴坦中间体的制备方法 - Google Patents
一种瑞利巴坦中间体的制备方法 Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 (benzyloxy) amino Chemical group 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- LZRDHSFPLUWYAX-UHFFFAOYSA-N tert-butyl 4-aminopiperidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC(N)CC1 LZRDHSFPLUWYAX-UHFFFAOYSA-N 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 32
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 27
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 claims description 25
- NLFBCYMMUAKCPC-KQQUZDAGSA-N ethyl (e)-3-[3-amino-2-cyano-1-[(e)-3-ethoxy-3-oxoprop-1-enyl]sulfanyl-3-oxoprop-1-enyl]sulfanylprop-2-enoate Chemical compound CCOC(=O)\C=C\SC(=C(C#N)C(N)=O)S\C=C\C(=O)OCC NLFBCYMMUAKCPC-KQQUZDAGSA-N 0.000 claims description 21
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 239000012074 organic phase Substances 0.000 claims description 12
- 239000012452 mother liquor Substances 0.000 claims description 11
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 8
- 230000008025 crystallization Effects 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 6
- 239000011592 zinc chloride Substances 0.000 claims description 5
- 235000005074 zinc chloride Nutrition 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 2
- GSNUFIFRDBKVIE-UHFFFAOYSA-N DMF Natural products CC1=CC=C(C)O1 GSNUFIFRDBKVIE-UHFFFAOYSA-N 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910001439 antimony ion Inorganic materials 0.000 claims description 2
- 229910001422 barium ion Inorganic materials 0.000 claims description 2
- 229910052792 caesium Inorganic materials 0.000 claims description 2
- 229910001424 calcium ion Inorganic materials 0.000 claims description 2
- 229910001431 copper ion Inorganic materials 0.000 claims description 2
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 2
- 229910001449 indium ion Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 2
- 229910001437 manganese ion Inorganic materials 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 2
- 229910001414 potassium ion Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- 229910001432 tin ion Inorganic materials 0.000 claims description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
- DNUTZBZXLPWRJG-UHFFFAOYSA-M piperidine-1-carboxylate Chemical compound [O-]C(=O)N1CCCCC1 DNUTZBZXLPWRJG-UHFFFAOYSA-M 0.000 claims 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 3
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 abstract description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 2
- 230000036632 reaction speed Effects 0.000 abstract 1
- RQCNHUCCQJMSRG-UHFFFAOYSA-N tert-butyl piperidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCCCC1 RQCNHUCCQJMSRG-UHFFFAOYSA-N 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 22
- 150000001875 compounds Chemical class 0.000 description 14
- 238000001914 filtration Methods 0.000 description 14
- 239000003208 petroleum Substances 0.000 description 12
- 239000012065 filter cake Substances 0.000 description 10
- BZLVMXJERCGZMT-UHFFFAOYSA-N methyl tert-butyl ether Substances COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000002386 leaching Methods 0.000 description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
- AKQOBHZKBDHWQI-BZEFIUHZSA-N O[C@H]1C[C@@H](CCC1)N1C(C2(C3=C1N=C(N=C3)NC1=CC=C(C=C1)S(=O)(=O)NC([2H])([2H])[2H])CC2)=O Chemical compound O[C@H]1C[C@@H](CCC1)N1C(C2(C3=C1N=C(N=C3)NC1=CC=C(C=C1)S(=O)(=O)NC([2H])([2H])[2H])CC2)=O AKQOBHZKBDHWQI-BZEFIUHZSA-N 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- 238000000967 suction filtration Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
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- NCCJWSXETVVUHK-ZYSAIPPVSA-N (z)-7-[(2r)-2-amino-2-carboxyethyl]sulfanyl-2-[[(1s)-2,2-dimethylcyclopropanecarbonyl]amino]hept-2-enoic acid;(5r,6s)-3-[2-(aminomethylideneamino)ethylsulfanyl]-6-[(1r)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid Chemical compound C1C(SCC\N=C/N)=C(C(O)=O)N2C(=O)[C@H]([C@H](O)C)[C@H]21.CC1(C)C[C@@H]1C(=O)N\C(=C/CCCCSC[C@H](N)C(O)=O)C(O)=O NCCJWSXETVVUHK-ZYSAIPPVSA-N 0.000 description 2
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 2
- YRDQGCOQKBMZAM-UHFFFAOYSA-N C(C)(C)(C)OC=O.N1CCCCC1 Chemical compound C(C)(C)(C)OC=O.N1CCCCC1 YRDQGCOQKBMZAM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- SMOBCLHAZXOKDQ-ZJUUUORDSA-N [(2s,5r)-7-oxo-2-(piperidin-4-ylcarbamoyl)-1,6-diazabicyclo[3.2.1]octan-6-yl] hydrogen sulfate Chemical compound O=C([C@H]1N2C[C@@](CC1)(N(C2=O)OS(O)(=O)=O)[H])NC1CCNCC1 SMOBCLHAZXOKDQ-ZJUUUORDSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229960003716 cilastatin sodium Drugs 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229950011310 relebactam Drugs 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- DNUTZBZXLPWRJG-UHFFFAOYSA-N 1-Piperidine carboxylic acid Chemical compound OC(=O)N1CCCCC1 DNUTZBZXLPWRJG-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- 229960000549 4-dimethylaminophenol Drugs 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- NDCUAPJVLWFHHB-UHNVWZDZSA-N avibactam Chemical compound C1N2[C@H](C(N)=O)CC[C@@]1([H])N(OS(O)(=O)=O)C2=O NDCUAPJVLWFHHB-UHNVWZDZSA-N 0.000 description 1
- 229960002379 avibactam Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003781 beta lactamase inhibitor Substances 0.000 description 1
- 229940126813 beta-lactamase inhibitor Drugs 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003952 β-lactams Chemical group 0.000 description 1
- 229940126085 β‑Lactamase Inhibitor Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no 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
- C07D211/60—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
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/07—Optical isomers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种瑞利巴坦中间体的制备方法,该方法以(2S,5R)‑5‑[(苄氧基)氨基]哌啶‑2‑甲酸酯II为原料,在促进剂的存在下与Boc‑4‑氨基哌啶III反应生成4‑((2S,5R)‑((苄氧基)氨基)哌啶‑2‑甲酰胺基)哌啶‑1‑甲酸叔丁基酯I的制备方法。该方法原料易得,反应条件温和,反应选择性高,反应速度快,杂质少等优点。
Description
技术领域
本发明属于药物合成领域,具体涉及4-((2S,5R)-((苄氧基)氨基)哌啶-2-甲酰胺基)哌啶-1-甲酸叔丁基酯的制备方法。
背景技术
瑞利巴坦(Relebactam)是一种新型的非β-内酰胺结构的β-内酰胺酶抑制剂,其结构与阿维巴坦类似,瑞利巴坦和亚胺培南-西司他丁钠组合药物在临床二期显示了良好的性能,研究其合成和作用具有重要的意义。其化学名为硫酸单[(1R,2S,5R)-7-氧代-2-[(4-哌啶基氨基)羰基]-1,6-二氮杂双环[3.2.1]辛-6-基]酯,具体结构如下:
其中,4-((2S,5R)-((卞氧基)氨基)哌啶-2-甲酰胺基)哌啶-1-甲酸叔丁基酯I是合成瑞利巴坦的关键中间体,其结构如下:
关于瑞利巴坦中间体的合成方法,主要有以下这几篇文献报道,例如:WO2017136254A1,合成路线如下:
WO2014200786A1,合成路线如下:
WO2010126820A2,合成路线如下:
现有报道的方法,有的原料特殊,不容易制备,有的杂质难控,对最终产品质量有影响,有的反应转化率低,提高了成本。
发明内容
为了克服现有技术不足,本发明提供了一种瑞利巴坦中间体的制备方法。该方法具有条件温和,安全性高,操作简便,反应纯度高,杂质少,易于工业化生产等优点。
本发明采用的技术如下:
一种瑞利巴坦中间体的制备方法,将化合物II((2S,5R)-5-[(苄氧基)氨基]哌啶-2-甲酸酯)与化合物III(Boc-4-氨基哌啶)在促进剂的存在下于溶剂反应制得化合物I(4-((2S,5R)-((苄氧基)氨基)哌啶-2-甲酰胺基)哌啶-1-甲酸叔丁基酯),反应如下:
其中,R1为甲基、乙基、苄基、叔丁基、烯丙基中的一种。
所述的制备方法中;所述的促进剂中正离子为锂离子、镓离子、镁离子、铜离子、铁离子、铟离子、锡离子、锗离子、锑离子、银离子、亚铁离子、锰离子、钯离子、铯离子、钙离子、钡离子、锌离子、铝离子、钾离子、钠离子中一种或多种。所述的促进剂中负离子为氯离子、溴离子、碘离子、氟离子、硫酸根离子、硫酸氢根离子、硝酸根离子、乙酸根离子、丙酸根离子、甲磺酸根、对甲苯磺酸根、碳酸根离子、氢氧根离子中一种或多种。
所述的促进剂与化合物II的摩尔比为0.05~1:1。;进一步优选为:所述的促进剂与化合物II的摩尔比为0.2~0.6:1。
所述的化合物II和化合物III的摩尔比例为1:1~3。进一步优选为:所述的化合物II和化合物III的摩尔比为1:1~2.5。
所述的溶剂为甲醇、乙醇、异丙醇、乙腈、环己烷、二氯甲烷、甲苯、DMF、DMSO、二氧六环中的一种或者多种。作为进一步优选,所述溶剂为乙醇、甲苯、乙腈、甲醇中的一种或多种。
作为优选,所述促进剂为氯化铝、氯化锌和三氯化铁中的一种或多种。所述促进剂与化合物II的摩尔比为0.3~0.6:1;所述化合物II和化合物III的摩尔比例为1:1~2.5。
作为进一步优选,反应结束后,加入氢氧化钠水溶液得到的有机相浓缩,利用析晶剂析晶得到本发明的目标产物;得到的母液去除溶剂后的残留物可以直接回收套用,实验证明,直接回收套用时,既不会影响产物的纯度,且可以充分利用其中未反应的化合物III,降低化合物III的消耗量;同时也可以进一步回收其中的产品,进而提高收率。
作为优选,所述析晶剂为石油醚,甲基叔丁基醚,环己烷,正己烷,异丙醚。经过简单的后处理,本发明即可得到HPLC纯度为98%以上的最终产品。且收率一般在80%以上。特别是选择氯化铝作为催化剂时,收率均在85%以上,如果考虑母液套用,收率可以提高到95%甚至95%以上。
作为优选,首次反应时,促进剂与化合物III的摩尔比为1:4~7(催化剂为氯化铝或者氯化铁等三价阳离子盐时,促进剂与化合物III的摩尔比为1:6~7;催化剂为氯化锌等二价阳离子盐时,促进剂与化合物II的摩尔比为1:4~5);母液去除溶剂套用时,促进剂与化合物III的摩尔比为1:1~4(催化剂为氯化铝或者氯化铁等三价阳离子盐时,促进剂与化合物III的摩尔比为1:3~4;催化剂为氯化锌等二价阳离子盐时,促进剂与化合物II的摩尔比为1:2~3)。
所述的温度为0℃~60℃。最优为40℃~60℃。
与现有技术相比,本发明的有益效果体现在:
本发明采用在反应体系中加入无机盐作为促进剂,大大提高了反应收率,且该方法反应条件温和,后处理简单,反应纯度高。
本发明的反应母液可以不经过预处理即可直接套用于反应,进一步提高了反应收率,降低了产物的制备成本。
具体实施方式
将化合物II与化合物III在催化剂的存在下于溶剂反应制得化合物I,反应如下:
实施例1:(R1为苄基)
反应瓶内投入甲苯30ml,无水氯化铝0.7g(5.3mmol),化合物III 7.0g(35mmol),化合物II 5g(14.7mmol),50℃保温至反应完全(约3小时),加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,滤饼用石油醚淋洗烘干,得化合物I5.6g,收率:88%,含量:98.5%。1H NMR(400MHz,CDCl3)δ7.40–7.27(m,5H),6.75(d,J=8.0Hz,1H),4.66(s,2H),4.00(s,2H),3.93–3.82(m,1H),3.29(dd,J=11.8,2.4Hz,1H),3.16(dd,J=10.4,2.8Hz,1H),2.96(t,J=10.0Hz,1H),2.84(t,J=11.5Hz,2H),2.53–2.42(m,1H),2.15–2.05(m,1H),1.88(dd,J=23.3,8.8Hz,3H),1.44(d,J=3.5Hz,10H),1.38–1.20(m,3H)。Ms:M+1=433.28。
母液减压至干,加入甲苯30ml,化合物III 3.8g(19mmol),无水氯化铝0.7g(5.3mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,滤饼用石油醚淋洗烘干,得化合I6.1g,收率:96%,含量:98.5%。
实施例2:(R1为苄基)
反应瓶内投入乙腈30ml,无水氯化铝0.7g(5.3mmol),化合物III 7.0g(35mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,滤液减压至干,用环己烷析晶,抽滤,滤饼用纯水淋洗,烘干,得化合I 5.5g,收率:86%,含量:99.0%。
母液减压至干,加入乙腈30ml,化合物III 3.8g(19mmol),无水氯化铝0.7g(5.3mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用环己烷析晶,抽滤,滤饼用环己烷淋洗烘干,得化合I6.0g,收率:94.5%,含量:98.5%。
实施例3:(R1为苄基)
反应瓶内投入甲苯30ml,无水氯化锌1.02g(7.5mmol),化合物III 7.0g(35mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,烘干,得化合I 5.08g,收率:80%,含量:97.0%。
实施例4:(R1为苄基)
反应瓶内投入甲苯30ml,无水三氯化铁0.86g(5.3mmol),化合物III7.0g(35mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,滤饼用石油醚淋洗烘干,得化合I 4.5g,收率:70%,含量:95.0%。
实施例5:(R1为乙基)
反应瓶内投入甲苯30ml,无水氯化铝0.73g(5.5mmol),化合物III 7.0g(35mmol),化合物II 4.1g(14.7mmol),50℃保温至反应完全(约10小时),加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,滤饼用石油醚淋洗烘干,得化合I5.6g,收率:88%,含量:98.0%。
母液减压至干,加入甲苯30ml,化合物III 3.8g(19mmol),无水氯化铝0.73g(5.5mmol),化合物II 4.1g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用石油醚析晶,抽滤,滤饼用石油醚淋洗烘干,得化合I6.0g,收率:94.5%,含量:98.5%。
实施例6:(R1为苄基)
反应瓶内投入乙醇30ml,无水氯化铝0.7g(5.3mmol),化合物III 7.0g(35mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用甲基叔丁基醚析晶,抽滤,滤饼用甲基叔丁基醚淋洗烘干,得化合物I 5.5g,收率:86%,含量:98.8%。
母液减压至干,加入乙醇30ml,化合物III 3.8g(19mmol),无水氯化铝0.7g(5.3mmol),化合物II 5g(14.7mmol),50℃保温至反应完全,加入50%氢氧化钠水溶液2.0g,过滤,分层,有机相减压至干,用甲基叔丁基醚析晶,抽滤,滤饼用甲基叔丁基醚淋洗烘干,得化合I 6.0g,收率:94%,含量:98.8%。
对比例1
反应条件同实施例1,区别仅在于不加入无水氯化铝,反应相同时间后,TLC检测几乎没有产物生成。
对比例2
反应条件同实施例1,区别仅在于用DMAP替换无水氯化铝,反应相同时间后,TLC检测几乎没有产物生成。
对比例3
反应条件同实施例1,区别仅在于用对甲基苯磺酸替换无水氯化铝,反应相同时间后,TLC检测几乎没有产物生成。
Claims (8)
2.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,所述促进剂由正离子和负离子组成,其中正离子选自锂离子、镓离子、镁离子、铜离子、铁离子、铟离子、锡离子、锗离子、锑离子、银离子、亚铁离子、锰离子、钯离子、铯离子、钙离子、钡离子、锌离子、铝离子、钾离子、钠离子中一种或多种;负离子选自氯离子、溴离子、碘离子、氟离子、硫酸根离子、硫酸氢根离子、硝酸根离子、乙酸根离子、丙酸根离子、甲磺酸根、对甲苯磺酸根、碳酸根离子、氢氧根离子中一种或多种。
3.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,所述的促进剂与化合物II的摩尔比为0.01~1:1。
4.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,所述的化合物II和化合物III的比例为1:1~3。
5.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,反应温度为0℃~60℃。
6.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,所述的溶剂为甲醇、乙醇、异丙醇、乙腈、环己烷、二氯甲烷、氯仿、氯苯、甲苯、DMF、DMSO、二氧六环中的一种或者多种。
7.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,反应结束后,加入氢氧化钠水溶液,得到的有机相干燥后浓缩,利用析晶剂析晶得到本发明的目标产物;母液去除溶剂直接作为原料回收套用。
8.根据权利要求1所述的瑞利巴坦中间体的制备方法,其特征在于,所述R1为乙基、苄基;所述促进剂为氯化铝、氧化铁、氯化锌中的一种或多种;反应温度为45~60℃。
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