CN112645982B - 一种瑞德西韦关键中间体的制备和纯化方法 - Google Patents
一种瑞德西韦关键中间体的制备和纯化方法 Download PDFInfo
- Publication number
- CN112645982B CN112645982B CN202011525338.0A CN202011525338A CN112645982B CN 112645982 B CN112645982 B CN 112645982B CN 202011525338 A CN202011525338 A CN 202011525338A CN 112645982 B CN112645982 B CN 112645982B
- Authority
- CN
- China
- Prior art keywords
- compound
- preparation
- purification
- ethyl acetate
- key intermediate
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000746 purification Methods 0.000 title claims abstract description 17
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229940125904 compound 1 Drugs 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 14
- XBNGYFFABRKICK-UHFFFAOYSA-N 2,3,4,5,6-pentafluorophenol Chemical compound OC1=C(F)C(F)=C(F)C(F)=C1F XBNGYFFABRKICK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002841 Lewis acid Substances 0.000 claims abstract description 11
- 229940125782 compound 2 Drugs 0.000 claims abstract description 11
- 150000007517 lewis acids Chemical class 0.000 claims abstract description 11
- 150000007530 organic bases Chemical class 0.000 claims abstract description 11
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachloro-phenol Natural products OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 30
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 14
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 10
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 7
- 229940011051 isopropyl acetate Drugs 0.000 claims description 7
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- LGUZHRODIJCVOC-UHFFFAOYSA-N perfluoroheptane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F LGUZHRODIJCVOC-UHFFFAOYSA-N 0.000 claims description 7
- USPWUOFNOTUBAD-UHFFFAOYSA-N 1,2,3,4,5-pentafluoro-6-(trifluoromethyl)benzene Chemical compound FC1=C(F)C(F)=C(C(F)(F)F)C(F)=C1F USPWUOFNOTUBAD-UHFFFAOYSA-N 0.000 claims description 5
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 5
- 229960004624 perflexane Drugs 0.000 claims description 5
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 claims description 5
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 5
- -1 perfluoro Chemical group 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007865 diluting Methods 0.000 claims description 3
- CBEFDCMSEZEGCX-UHFFFAOYSA-N 1,1,2,2,2-pentafluoro-n,n-bis(1,1,2,2,2-pentafluoroethyl)ethanamine Chemical compound FC(F)(F)C(F)(F)N(C(F)(F)C(F)(F)F)C(F)(F)C(F)(F)F CBEFDCMSEZEGCX-UHFFFAOYSA-N 0.000 claims description 2
- RKIMETXDACNTIE-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6-dodecafluorocyclohexane Chemical compound FC1(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)F RKIMETXDACNTIE-UHFFFAOYSA-N 0.000 claims description 2
- QIROQPWSJUXOJC-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6-undecafluoro-6-(trifluoromethyl)cyclohexane Chemical compound FC(F)(F)C1(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)F QIROQPWSJUXOJC-UHFFFAOYSA-N 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- FYJQJMIEZVMYSD-UHFFFAOYSA-N perfluoro-2-butyltetrahydrofuran Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)OC(F)(F)C(F)(F)C1(F)F FYJQJMIEZVMYSD-UHFFFAOYSA-N 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000004128 high performance liquid chromatography Methods 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 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 description 2
- WAUGGYPDCQZJKK-UHFFFAOYSA-N 1h-pyrrol-3-amine Chemical compound NC=1C=CNC=1 WAUGGYPDCQZJKK-UHFFFAOYSA-N 0.000 description 2
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GLGNXYJARSMNGJ-VKTIVEEGSA-N (1s,2s,3r,4r)-3-[[5-chloro-2-[(1-ethyl-6-methoxy-2-oxo-4,5-dihydro-3h-1-benzazepin-7-yl)amino]pyrimidin-4-yl]amino]bicyclo[2.2.1]hept-5-ene-2-carboxamide Chemical compound CCN1C(=O)CCCC2=C(OC)C(NC=3N=C(C(=CN=3)Cl)N[C@H]3[C@H]([C@@]4([H])C[C@@]3(C=C4)[H])C(N)=O)=CC=C21 GLGNXYJARSMNGJ-VKTIVEEGSA-N 0.000 description 1
- IWZSHWBGHQBIML-ZGGLMWTQSA-N (3S,8S,10R,13S,14S,17S)-17-isoquinolin-7-yl-N,N,10,13-tetramethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-amine Chemical compound CN(C)[C@H]1CC[C@]2(C)C3CC[C@@]4(C)[C@@H](CC[C@@H]4c4ccc5ccncc5c4)[C@@H]3CC=C2C1 IWZSHWBGHQBIML-ZGGLMWTQSA-N 0.000 description 1
- XWDOOXKEYHCQRT-UHFFFAOYSA-N 1,3-dioxolane-4-carbonitrile Chemical compound N#CC1COCO1 XWDOOXKEYHCQRT-UHFFFAOYSA-N 0.000 description 1
- ONBQEOIKXPHGMB-VBSBHUPXSA-N 1-[2-[(2s,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4,6-dihydroxyphenyl]-3-(4-hydroxyphenyl)propan-1-one Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1OC1=CC(O)=CC(O)=C1C(=O)CCC1=CC=C(O)C=C1 ONBQEOIKXPHGMB-VBSBHUPXSA-N 0.000 description 1
- 125000006176 2-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(C([H])([H])*)C([H])([H])C([H])([H])[H] 0.000 description 1
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- OPFJDXRVMFKJJO-ZHHKINOHSA-N N-{[3-(2-benzamido-4-methyl-1,3-thiazol-5-yl)-pyrazol-5-yl]carbonyl}-G-dR-G-dD-dD-dD-NH2 Chemical compound S1C(C=2NN=C(C=2)C(=O)NCC(=O)N[C@H](CCCN=C(N)N)C(=O)NCC(=O)N[C@H](CC(O)=O)C(=O)N[C@H](CC(O)=O)C(=O)N[C@H](CC(O)=O)C(N)=O)=C(C)N=C1NC(=O)C1=CC=CC=C1 OPFJDXRVMFKJJO-ZHHKINOHSA-N 0.000 description 1
- 229960003767 alanine Drugs 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229940125758 compound 15 Drugs 0.000 description 1
- 229940126142 compound 16 Drugs 0.000 description 1
- 229940126086 compound 21 Drugs 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007333 cyanation reaction Methods 0.000 description 1
- 238000006264 debenzylation reaction Methods 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 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 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100000024 genotoxic Toxicity 0.000 description 1
- 230000001738 genotoxic effect Effects 0.000 description 1
- 238000006206 glycosylation reaction Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- RWWYLEGWBNMMLJ-YSOARWBDSA-N remdesivir Chemical compound NC1=NC=NN2C1=CC=C2[C@]1([C@@H]([C@@H]([C@H](O1)CO[P@](=O)(OC1=CC=CC=C1)N[C@H](C(=O)OCC(CC)CC)C)O)O)C#N RWWYLEGWBNMMLJ-YSOARWBDSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
Classifications
-
- 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
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6561—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种瑞德西韦关键中间体INT的制备和纯化方法,所述方法包括:将化合物1加入到化合物2的THF溶液中,再加入路易斯酸和有机碱。反应结束后,反应液用乙酸乙酯稀释、水洗分液,再用全氟溶剂萃取除去五氟苯酚。乙酸乙酯相浓缩后,结晶纯化得到瑞德西韦关键中间体。该方法可以显著提高瑞德西韦关键中间体的产率和产品质量,具有显著的社会效益和经济效益,
Description
技术领域
本发明属于药物合成技术领域,具体地,涉及一种瑞德西韦关键中间体的制备和纯化方法。
背景技术
文献J.Med.Chem.2017,60,1648-1661.报道该篇文献报道了瑞德西韦的第一代合成方法。首先是化合物15在丁基锂的作用下与内脂14进行糖苷化反应得到化合物16,接着进行氰基化反应,紧接着进行脱苄基保护得到化合物4。化合物4再与化合物19反应得到消旋的最终化合物,最终进行SFC拆分得到4b(瑞德西韦)。第一代的合成方法需要进行SFC拆分,很难大规模制备。
还报道第二代合成方法,对硝基苯酚作为离去基团的关键中间体22b,与化合物21进行反应,再进行脱保护反应顺利得到手性的最终化合物4b(瑞德西韦)。该路线避免了拆分的局限性,但在手性合成反应时,对硝基苯酚结构为潜在遗传毒性物质,有安全性风险。且对异构体杂质的控制效果也不够优秀。
CN111116656A公开了一种瑞德西韦的制备方法,其中包括:
氮气保护下,将化合物II(200mg,0.60mmol)和无水四氢呋喃25mL加入反应瓶,降到0℃,然后慢慢滴加六甲基二硅基胺钠的0.8M溶液(1.5mL,1.2mmol)。搅拌30min后,加入化合物III(471mg,0.95mmol)。混合物在室温下搅拌48h,然后用饱和NH4Cl水溶液(20mL)淬灭。混合物在乙酸乙酯(50mL)和水之间分配。合并的有机萃取物经无水硫酸镁干燥并浓缩。使用0~4%甲醇/二氯甲烷梯度法对残渣进行层析,得到白色固体185.08mg,摩尔收率为48%(即每摩尔化合物II获得0.48摩尔白色固体)。上述反应中,五氟苯酚基作为一个离去基团,其位阻有利于控制异构杂质的产生。但在后处理的过程中,由于五氟苯酚副产物和INT有成盐作用,很难被除去,造成结晶困难或纯化效果低。
发明内容
发明目的:本发明的目的是提供一种可以显著提高瑞德西韦关键中间体的产率和质量的瑞德西韦关键中间体的制备和纯化方法。
技术方案:本发明所述的一种瑞德西韦关键中间体的制备和纯化方法,其化学名为:(S)-2-((S)-((3αR,4R,6R,6αR)-6-(4-氨基吡咯[2,1-f][1,2,4]三嗪-7-基)-6-氰基-2,2-二甲基四氢呋喃[3,4-d][1,3]二氧戊环-4-基)甲氧基)(苯氧基)磷酰基)氨基)-2-乙基丁基酯(INT)。
过程包括:化合物1和化合物2反应得到INT,后处理过程包含用全氟溶剂萃取的步骤,
在一些实施方案中,所述的制备方法中,所述的全氟溶剂可选自全氟己烷、全氟庚烷、全氟甲苯、全氟环己烷、全氟甲基环己烷、全氟2-丁基四氢呋喃、全氟三乙基胺,优选全氟己烷、全氟庚烷、全氟甲苯,更优选全氟庚烷。
在一些实施方案中,所述的制备方法中,化合物1和化合物2在路易斯酸和有机碱条件下反应得到INT。在一些实施方案中,所述的路易斯酸可选自三氯化铝、三氯化硼、四氯化锡、氯化镁,优选氯化镁。在一些实施方案中,所述的有机碱可选自N,N-二异丙基乙胺、三乙胺、吡啶,优选三乙胺。
在一些实施方案中,所述的制备方法中,化合物2和化合物1在四氢呋喃溶液中、路易斯酸和有机碱条件下反应,反应结束后得到包含INT的四氢呋喃液,用乙酸乙酯稀释、用酸性水溶液洗涤。在一些实施方案中,所述酸性水溶液是柠檬酸水溶液。在一些实施方案中,所述的制备方法中,用酸性水溶液洗涤后的有机溶液用全氟溶剂萃取,收集有机溶液。在一些实施方案中,所述的制备方法中,用酸性水溶液洗涤后的有机溶液用全氟溶剂萃取,收集有机溶液,浓缩;浓缩物加入乙酸乙酯或者醋酸异丙酯后加热回流,向溶液中加入正己烷或者正庚烷,降温析晶,得到关键中间体INT。
在一些实施方案中,所述的制备方法中,将化合物2加入到化合物1的溶液中,再加入路易斯酸和有机碱;反应结束后,反应液用乙酸乙酯稀释、水洗分液,再用全氟溶剂萃取除去五氟苯酚。乙酸乙酯相浓缩后,再经过结晶纯化得到瑞德西韦关键中间体INT。
在一些实施方案中,将化合物2加入到化合物1的THF溶液中,再加入路易斯酸,低温加入有机碱;反应结束后,反应液用乙酸乙酯稀释、水洗,再用全氟溶剂萃取除去五氟苯酚;乙酸乙酯相浓缩后,低温结晶纯化得到瑞德西韦关键中间体INT。在一些实施方案中,所述的路易斯酸选自三氯化铝、三氯化硼、四氯化锡或氯化镁,优选氯化镁。在一些实施方案中,所述有机碱选自N,N-二异丙基乙胺、三乙胺或吡啶,优选三乙胺。在一些实施方案中,所述低温加入温度为-10~30℃,优选-10~0℃、0~10℃或10~20℃,更优选10~20℃。
在一些实施方案中,所述全氟溶剂选自全氟己烷、全氟庚烷或全氟甲苯,优选全氟庚烷。在一些实施方案中,所述低温结晶纯化过程中,所用的结晶溶剂选自乙酸乙酯/正庚烷、醋酸异丙酯/正庚烷或醋酸异丙酯/正己烷。在一些实施方案中,所述低温结晶纯化过程中,结晶温度为-10~30℃,优选0~10℃、10~20℃和20~30℃,更优选10~20℃。
有益效果:本发明在INT的制备和纯化过程中,提供全氟溶剂萃取法,利用全氟溶剂与常规有机溶剂不互溶的特点,可以有效地除去五氟苯酚,提高结晶收率和产品质量。该方法可以显著提高瑞德西韦关键中间体的产率和产品质量,具有显著的社会效益和经济效益。
具体实施方式
为进一步了解本发明的内容,结合实施例对本发明作详细描述。
实施例1
INT的合成:称取100.02g化合物1((3αR,4R,6R,6αR)-4-(4-氨基吡咯[2,1-f][1,2,4]三嗪-7-基)-6-(甲氧基)-2,2-二甲基四氢呋喃[3,4-d][1,3]二氧戊环-4-腈),加入到800ml四氢呋喃溶液中,搅拌溶解。再加入157.05g化合物2(2-乙基丁基((S)-(五氟苯氧基)(苯氧基)磷酰基)-L-丙氨酸酯),搅拌,再加入氯化镁30.02g,搅拌。降温至10~20℃,滴加三乙胺98.01g。滴毕后,保温反应2h,取样,HPLC检测,化合物1残留0.97%,异构体杂质0.09%。
实施例2
INT的合成:称取99.99g化合物1,加入到800ml四氢呋喃溶液中,搅拌溶解。再加入156.98g化合物2,搅拌,再加入三氯化铝30.0g,搅拌。降温至0~10℃,滴加N,N-二异丙基乙胺98.01g。滴毕后,保温反应2h,取样,HPLC检测,化合物1残留2.05%,异构体杂质0.15%。
实施例3
INT的合成:称取100.02g化合物1,加入到800ml四氢呋喃溶液中,搅拌溶解。再加入157.05g化合物2,搅拌,再加入四氯化锡30.02g,搅拌。降温至20~30℃,滴加吡啶98.01g。滴毕后,保温反应2h,取样,HPLC检测,化合物1残留1.83%,异构体杂质0.33%。
实施例4
依实施例1得INT反应液。加入1000ml乙酸乙酯稀释,再用1000ml柠檬酸溶液洗涤分液。乙酸乙酯相,用全氟己烷分两次萃取,分液。乙酸乙酯相于50℃减压浓缩,得油状物184.6g,五氟苯酚残留2.3%。
实施例5
依实施例1得INT反应液。加入1000ml乙酸乙酯稀释,再用1000ml柠檬酸溶液洗涤分液。乙酸乙酯相,用全氟庚烷分两次萃取,分液。乙酸乙酯相于50℃减压浓缩,得油状物182.6g,五氟苯酚残留1.5%。
实施例6
依实施例1得INT反应液。加入1000ml乙酸乙酯稀释,再用1000ml柠檬酸溶液洗涤分液。乙酸乙酯相,用全氟甲苯分两次萃取,分液。乙酸乙酯相于50℃减压浓缩,得油状物187.6g,五氟苯酚残留3.9%。
实施例7
依实施例4得油状物50.7g。加入乙酸乙酯300ml加热回流溶解,溶清后再滴加200ml正庚烷,缓慢降温后0~10℃,保温析晶2h。放料抽滤,200ml正庚烷平均分两次淋洗滤饼,湿品转移至50℃真空干燥箱,干燥至基本恒重,得关键中间体INT 45.8g,收率90.3%,HPLC纯度98.67%。
实施例8
依实施例4得油状物50.4g。加入醋酸异丙酯300ml加热回流溶解,溶清后再滴加200ml正庚烷,缓慢降温至10~20℃,保温析晶2h。放料抽滤,200ml正庚烷平均分两次淋洗滤饼,湿品转移至50℃真空干燥箱,干燥至基本恒重,得关键中间体INT 44.6g,收率88.5%,HPLC纯度99.57%。
实施例9
依实施例4得油状物49.9g。加入醋酸异丙酯300ml加热回流溶解,.溶清后再滴加200ml正己烷,缓慢降温至20~30℃,保温析晶2h。放料抽滤,200ml正庚烷平均分两次淋洗滤饼,湿品转移至50℃真空干燥箱,干燥至基本恒重,得关键中间体INT 40.2g,收率80.5%,HPLC纯度99.48%。
Claims (9)
2.根据权利要求1所述的制备和纯化方法,其特征在于,所述的全氟溶剂为全氟己烷、全氟庚烷、全氟甲苯、全氟环己烷、全氟甲基环己烷、全氟2-丁基四氢呋喃、全氟三乙基胺。
3.根据权利要求1所述的制备和纯化方法,其特征在于,所述的路易斯酸为三氯化铝、三氯化硼、四氯化锡和氯化镁中的一种。
4.根据权利要求1所述的制备和纯化方法,其特征在于,所述的有机碱为N,N-二异丙基乙胺、三乙胺和吡啶中的一种。
5.根据权利要求1所述的制备和纯化方法,其特征在于,将化合物2加入到化合物1的THF溶液中,再加入路易斯酸,低温加入有机碱;反应结束后,反应液用乙酸乙酯稀释、水洗,再用全氟溶剂萃取除去五氟苯酚;乙酸乙酯相浓缩后,低温结晶纯化得到瑞德西韦关键中间体INT。
6.根据权利要求5所述的制备和纯化方法,其特征在于,所述的路易斯酸选自三氯化铝、三氯化硼、四氯化锡、氯化镁。
7.根据权利要求5所述的制备和纯化方法,其特征在于,所述有机碱选自N,N-二异丙基乙胺、三乙胺或吡啶。
8.根据权利要求5所述的制备和纯化方法,其特征在于,所述低温结晶纯化过程中,所用的结晶溶剂选自乙酸乙酯/正庚烷、醋酸异丙酯/正庚烷或醋酸异丙酯/正己烷。
9.根据权利要求5所述的制备和纯化方法,其特征在于,所述低温结晶纯化过程中,结晶温度为-10~30℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011525338.0A CN112645982B (zh) | 2020-12-22 | 2020-12-22 | 一种瑞德西韦关键中间体的制备和纯化方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011525338.0A CN112645982B (zh) | 2020-12-22 | 2020-12-22 | 一种瑞德西韦关键中间体的制备和纯化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112645982A CN112645982A (zh) | 2021-04-13 |
CN112645982B true CN112645982B (zh) | 2023-04-07 |
Family
ID=75358894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011525338.0A Active CN112645982B (zh) | 2020-12-22 | 2020-12-22 | 一种瑞德西韦关键中间体的制备和纯化方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112645982B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2023002233A (es) | 2020-08-24 | 2023-03-15 | Gilead Sciences Inc | Compuestos fosfolipidos y usos de estos. |
TWI811812B (zh) | 2020-10-16 | 2023-08-11 | 美商基利科學股份有限公司 | 磷脂化合物及其用途 |
CN113735903A (zh) * | 2021-11-05 | 2021-12-03 | 山东诚创蓝海医药科技有限公司 | 一种瑞德西韦的合成方法 |
CN114213455A (zh) * | 2021-11-30 | 2022-03-22 | 南通常佑药业科技有限公司 | 一种瑞德西韦侧链中间体的手性纯化工艺 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110423257B (zh) * | 2019-08-26 | 2023-01-03 | 苏利制药科技江阴有限公司 | 一种索菲布韦合成工艺 |
CN111116656A (zh) * | 2020-03-04 | 2020-05-08 | 江苏福瑞康泰药业有限公司 | 一种瑞德西韦的制备方法 |
-
2020
- 2020-12-22 CN CN202011525338.0A patent/CN112645982B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN112645982A (zh) | 2021-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112645982B (zh) | 一种瑞德西韦关键中间体的制备和纯化方法 | |
CN111153818B (zh) | 一种制备抗病毒药物达菲中间体叔丁胺衍生物i的方法 | |
CN107245064B (zh) | 索非布韦中间体的制备方法 | |
CN113999142B (zh) | 一种手性N-Boc-反式-1,2-环己二胺的制备方法 | |
CN115745764A (zh) | 一种米洛巴林中间体的制备方法 | |
JP2005507900A (ja) | シタロプラムの製造方法 | |
CN101801914B (zh) | 从莽草酸生成磷酸奥司他韦的方法 | |
CN110183445A (zh) | 莫西沙星及其衍生物的合成方法 | |
CN112010851A (zh) | 一种莫西沙星盐酸盐的制备方法 | |
CN111170878A (zh) | 一种制备d-型或l-型叔亮氨酸的方法 | |
CN115974793A (zh) | 一种来特莫韦中间体拆分副产物的消旋回收方法 | |
CN114591140B (zh) | 孟鲁司特钠中间体及其制备方法和应用该中间体的制备方法 | |
CN116514800A (zh) | 盐酸戊乙奎醚的制备方法 | |
EP2516401A1 (en) | Improved process for the preparation of montelukast and salts thereof | |
CN109438243B (zh) | 一种电子级没食子酸辛酯的制备方法 | |
CN107827886A (zh) | 一种高纯度阿维巴坦的精制制备工艺 | |
CN111217709A (zh) | 一种(1-氟环丙基)甲胺盐酸盐的制备方法 | |
CN111320622A (zh) | 一种莫西沙星盐酸盐的合成方法 | |
CN114989082B (zh) | 基于i价铜化物和三取代膦协同催化的羟氯喹的高效制备方法 | |
US7038091B2 (en) | Process for producing acetylene compound | |
CN111116655B (zh) | 一种高光学纯度替诺福韦苄酯膦酰胺前体药物的制备方法 | |
CN115448912B (zh) | 泊沙康唑中间体的制备方法 | |
CN107746396B (zh) | 一种新型化合物6,6-二甲基四氢吡喃-2-甲醇及其制备方法 | |
CN101665427B (zh) | 5-溴正戊酰溴的制法 | |
CN108017573A (zh) | 4-亚甲基哌啶或其酸加成盐的制备方法 |
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 |