CN108727291A - The preparation method of Ao Zhamode and its intermediate - Google Patents
The preparation method of Ao Zhamode and its intermediate Download PDFInfo
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- CN108727291A CN108727291A CN201710267498.1A CN201710267498A CN108727291A CN 108727291 A CN108727291 A CN 108727291A CN 201710267498 A CN201710267498 A CN 201710267498A CN 108727291 A CN108727291 A CN 108727291A
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- zhamode
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 125000003368 amide group Chemical group 0.000 claims abstract description 20
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 19
- 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 abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- FKLJPTJMIBLJAV-UHFFFAOYSA-N Compound IV Chemical compound O1N=C(C)C=C1CCCCCCCOC1=CC=C(C=2OCCN=2)C=C1 FKLJPTJMIBLJAV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003223 protective agent Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- FCSKOFQQCWLGMV-UHFFFAOYSA-N 5-{5-[2-chloro-4-(4,5-dihydro-1,3-oxazol-2-yl)phenoxy]pentyl}-3-methylisoxazole Chemical compound O1N=C(C)C=C1CCCCCOC1=CC=C(C=2OCCN=2)C=C1Cl FCSKOFQQCWLGMV-UHFFFAOYSA-N 0.000 claims abstract 5
- 238000007363 ring formation reaction Methods 0.000 claims abstract 2
- 125000006239 protecting group Chemical group 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000003863 metallic catalyst Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000006722 reduction reaction Methods 0.000 claims description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003377 acid catalyst Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000006482 condensation reaction Methods 0.000 claims description 3
- 238000010511 deprotection reaction Methods 0.000 claims description 3
- -1 diacetone-L- 2-KLGs Chemical compound 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- BJEPYKJPYRNKOW-UWTATZPHSA-N (R)-malic acid Chemical compound OC(=O)[C@H](O)CC(O)=O BJEPYKJPYRNKOW-UWTATZPHSA-N 0.000 claims description 2
- XGIKILRODBEJIL-UHFFFAOYSA-N 1-(ethylamino)ethanol Chemical compound CCNC(C)O XGIKILRODBEJIL-UHFFFAOYSA-N 0.000 claims description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- WHUUTDBJXJRKMK-GSVOUGTGSA-N D-glutamic acid Chemical compound OC(=O)[C@H](N)CCC(O)=O WHUUTDBJXJRKMK-GSVOUGTGSA-N 0.000 claims description 2
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 claims description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 150000004675 formic acid derivatives Chemical class 0.000 claims description 2
- 235000011090 malic acid Nutrition 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 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 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims 1
- 235000006040 Prunus persica var persica Nutrition 0.000 claims 1
- 240000006413 Prunus persica var. persica Species 0.000 claims 1
- 229960001270 d- tartaric acid Drugs 0.000 claims 1
- 238000006197 hydroboration reaction Methods 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 5
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000007096 poisonous effect Effects 0.000 abstract description 2
- 238000007796 conventional method Methods 0.000 abstract 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000002585 base Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000012044 organic layer Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-UHFFFAOYSA-N 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- FIWILGQIZHDAQG-UHFFFAOYSA-N NC1=C(C(=O)NCC2=CC=C(C=C2)OCC(F)(F)F)C=C(C(=N1)N)N1N=C(N=C1)C1(CC1)C(F)(F)F Chemical compound NC1=C(C(=O)NCC2=CC=C(C=C2)OCC(F)(F)F)C=C(C(=N1)N)N1N=C(N=C1)C1(CC1)C(F)(F)F FIWILGQIZHDAQG-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 239000012279 sodium borohydride Substances 0.000 description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 description 3
- HEWZVZIVELJPQZ-UHFFFAOYSA-N 2,2-dimethoxypropane Chemical compound COC(C)(C)OC HEWZVZIVELJPQZ-UHFFFAOYSA-N 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- XRVDGNKRPOAQTN-FQEVSTJZSA-N 5-[3-[(1s)-1-(2-hydroxyethylamino)-2,3-dihydro-1h-inden-4-yl]-1,2,4-oxadiazol-5-yl]-2-propan-2-yloxybenzonitrile Chemical compound C1=C(C#N)C(OC(C)C)=CC=C1C1=NC(C=2C=3CC[C@@H](C=3C=CC=2)NCCO)=NO1 XRVDGNKRPOAQTN-FQEVSTJZSA-N 0.000 description 2
- 206010009900 Colitis ulcerative Diseases 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 201000006704 Ulcerative Colitis Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- DCFKHNIGBAHNSS-UHFFFAOYSA-N chloro(triethyl)silane Chemical compound CC[Si](Cl)(CC)CC DCFKHNIGBAHNSS-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 229950008141 ozanimod Drugs 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- IWYDHOAUDWTVEP-SSDOTTSWSA-N (R)-mandelic acid Chemical class OC(=O)[C@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-SSDOTTSWSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- WHHCFOKDRCAOGA-RQOWECAXSA-N C/C=C\C1=C(CC#N)CCC1 Chemical compound C/C=C\C1=C(CC#N)CCC1 WHHCFOKDRCAOGA-RQOWECAXSA-N 0.000 description 1
- DVXIUGFXYDSCLR-AWEZNQCLSA-N CC1(C)OCCN1[C@@H]1c2cccc(C#N)c2CC1 Chemical compound CC1(C)OCCN1[C@@H]1c2cccc(C#N)c2CC1 DVXIUGFXYDSCLR-AWEZNQCLSA-N 0.000 description 1
- GQSGUSWTROHHBP-TVKVQWBOSA-N CCC(C)O/C(/C)=C(/C=C(\C=C)/c1nc(-c2cccc3c2CC[C@@H]3NCCO)n[o]1)\C#N Chemical compound CCC(C)O/C(/C)=C(/C=C(\C=C)/c1nc(-c2cccc3c2CC[C@@H]3NCCO)n[o]1)\C#N GQSGUSWTROHHBP-TVKVQWBOSA-N 0.000 description 1
- 208000011231 Crohn disease Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 0 N#Cc1cccc2c1CCC2N*CO Chemical compound N#Cc1cccc2c1CCC2N*CO 0.000 description 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229940049706 benzodiazepine Drugs 0.000 description 1
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Substances N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
- 229910010277 boron hydride Inorganic materials 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000007806 chemical reaction intermediate Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 201000006417 multiple sclerosis Diseases 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- VKJVXYWGRYQADR-UHFFFAOYSA-N s-tert-butylthiohydroxylamine Chemical class CC(C)(C)SN VKJVXYWGRYQADR-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000001476 sodium potassium tartrate Substances 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- GTLDTDOJJJZVBW-UHFFFAOYSA-N zinc cyanide Chemical compound [Zn+2].N#[C-].N#[C-] GTLDTDOJJJZVBW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
- C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
- C07D271/06—1,2,4-Oxadiazoles; Hydrogenated 1,2,4-oxadiazoles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/04—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic 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
Abstract
The present invention provides the preparation methods of Ao Zhamode and its intermediate.The method of the present invention is to pass through suitable method prepare compound III with 2,3- dihydro -4- cyano -1- indones for raw material.The amido and hydroxyl of compound III are protected using protective agent, compound IV is made.Compound IV is subjected to salt treatment and obtains compound V.Compound V and compound VI are subjected to ring-closure reaction, compound VII is made.Compound VII is carried out to be deprotected obtained Ao Zhamode.The method of the present invention reduces reaction step compared with conventional method, improves total recovery, and it is high to prepare product quality；Reaction condition is mild, avoids the application of dangerous operating conditions, poisonous reagent and expensive chemical reagent, not only solves safety issue present in conventional method, and reduce cost, is suitble to industrialized production.
Description
Technical field
The invention belongs to technical field of medicine synthesis, and in particular to the preparation method of Ao Zhamode and its intermediate.
Background technology
Ao Zhamode (chemical names：5- [3- [(1S) -2,3- dihydros -1- [(2- ethoxys) amido] -1H- indenes -4-
Base] -1,2,4- E diazole -5- bases] -2- (1- methyl ethoxies)-benzonitrile), English name：Ozanimod.It is mainly used for multiple
The treatment of property sclerosis, ulcerative colitis and Crohn disease.Wherein, multiple sclerosis and the ulcerative colitis not only course of disease
Long, incidence height, and need medication all the year round.As it can be seen that Ao Zhamode market capacitys are huge, foreground is considerable.
The patent CN201080061144.8 of Rui Saiputuosi companies of the U.S. is disclosed with (R)-(+) -2- methyl-2-propyls
Sulfenamide is raw material with 4- cyano -1- indones, and imines is obtained by condensation reaction, and the chiral of sulfonamide is then recycled to carry out
Induction Control, the chiral amino protected after sodium borohydride reduction, hydrolyzes sulfinyl, obtains Chiral Amine under strongly acidic conditions
The method of base.Reaction route is as follows：
This method has the following disadvantages：
(1) reaction route is long, there is the reaction of 9 steps, and that there are life cycle of the product is long, total recovery is low and what production cost was high lacks
Point, a mole total recovery are only 31%；
(2) it needs to use poisonous reagent zinc cyanide in first step reaction, harm to the human body is big, and labour protection requires high, behaviour
It is inconvenient to make；
(3) reaction condition of second step requires anhydrous and oxygen-free, and height is required to operation, inconvenient for operation；
(4) the 6th steps use NaH and DMF, and reaction safety is poor, easily explode；Product quality made from this method is low,
Chiral purity (ee%) is only 95%；
(5) expensive reagent (R)-(+) -2- methyl-2-propyl sulfenamides in addition are used in reaction, greatly improved
Production cost.
Invention content
It is an object of the invention to solve problem above, provide that a kind of production cost is low, safety is good, is suitble to industrial metaplasia
The Ao Zhamode of production and its preparation method of intermediate.
Realizing the technical solution of above-mentioned purpose of the present invention is：The preparation method of Ao Zhamode and its intermediate, it be with 2,
3- dihydro -4- cyano -1- indones are raw material, and compound III is made by suitable method.Use protective agent to compound thereafter
The amido and hydroxyl of III is protected, and midbody compound IV is obtained；Thereafter by compound IV and azanol or the relevant salt of azanol
Midbody compound V is made in reaction；Thereafter, in the presence of suitable solvent and alkali, compound V and compound VI are subjected to ring
It closes reaction and obtains midbody compound VII；Finally, the protecting group that compound VII is sloughed with deprotection method appropriate, obtains
Ao Zhamode.Specific reaction step is as follows：
A) it with 2,3- dihydro -4- cyano -1- indones (compound as shown in II) for raw material, under suitable condition, closes
At compound III.
B) compound IV is prepared by protection to the amido and hydroxyl of compound III using protective agent.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
C) compound V is made from azanol or the relevant salt treatment compound IV of azanol.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
D) compound VII is occurred obtained from condensation reaction by compound V and compound VI.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
E) compound I Ao Zhamode are prepared by sloughing the protecting group of Formula VII compound with deprotection method.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
Above-mentioned step a) -1：Using compound II as raw material, in the presence of a catalyst, through asymmetric reduction reaction preparationization
Close object III.
Above-mentioned step a) -2：Using compound II as raw material, it is condensed with ethylaminoethanol, under appropriate solvent, uses reducing agent
Restored to obtain the raceme formula III-A of compound III, compound III-A is split under the conditions of chiral acid, changed
Close object III.
Above-mentioned step a) -1, using compound II as raw material, in the presence of a catalyst, through asymmetric reduction reaction preparationization
Object III is closed, the catalyst is selected from least one of metallic catalyst, chiral phosphoric acid catalyst or chiral sulfonic acid catalyst,
Wherein metallic catalyst, which is selected from, contains Ru, Ni, Cu, the metallic catalyst of Pt or Co metals；Above-mentioned step a) -2, with chemical combination
Object II is raw material, it carries out reduction reaction with reducing agent and obtains the raceme formula III-A of compound III, compound III-A is in hand
Property acid under the conditions of split, obtain compound III.The reducing agent of above-mentioned reduction reaction is boron hydride, tetrahydrochysene lithium aluminium, hydrogen
At least one of gas, formic acid or formates；The chiral resolving agent of above-mentioned chiral resolution reaction method is D- mandelic acids, D- winestones
At least one of acid, D- camphoric acids, D- camphorsulfonic acids, D-ALPHA-Hydroxypropionic acid, D-malic acid, diacetone-L- 2-KLGs, D-Glu；
The compound as shown in formula IV；
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
Compound shown as a formula V.
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
The compound as shown in Formula VII.
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
The positive effect of the present invention is：
(1) present invention reduces the synthesis step of Ozanimod, only 5-6 step reactions not only shorten the production of product
Period, and improve mole total recovery and quality of product.
(2) inventive process avoids NaH, DMF composite reagent of safety difference and expensive reagent (R)-(+)-
The application of 2- methyl-2-propyl sulfenamides, but cheap greenization supplementary material is used, not only increase the peace of reflection
Quan Xing, and reduce the cost of reaction.
(3) reaction condition of the present invention is mild, avoids the operating procedure of anhydrous and oxygen-free, easy to operate, it is easy to accomplish.
(4) highway route design of the invention is novel, and 5 reaction intermediates of gained are novel compounds, production process environment
Close friend, securely and reliably, total recovery are high, at low cost, are suitble to industrialized production.
Specific implementation mode
Following embodiment is illustrative, is not intended to limitation claimed invention range.
Embodiment 1
Under nitrogen protection, dichloromethane (400 is added into the three-necked bottle comprising compound II (15.7 grams, 0.1 mole)
Milliliter), sequentially add metallic catalyst (0.80 gram, 0.001 mole) containing Ru, iodine (0.127 gram, 0.001 mole), (S,
S bis- [4, the 5- dihydroxy -3H- biphenyl phosphorus] benzene (0.80 gram, 0.001 mole) of)-f-1,2-, hydrogenated at normal pressure 24 is small at 20 DEG C
When, solution washs organic layer with saturated aqueous sodium sulfite, saturated sodium-chloride water solution successively after diatomite filters, warp
After anhydrous sodium sulfate drying, filtering and concentrating obtains 18.0 grams of white solid, purity 99%, yield 90%.
1HNMR (400MHz, DMSO) δ 7.50-7.31 (m, 3H), 4.04 (m, 1H), 3.62 (q, 2H, J=5.5Hz),
3.57-3.43(m,1H),3.27(ddd,1H ,J1=17.6Hz, J2=9.1Hz, J3=5.0Hz), 3.15-2.85 (m, 1H),
2.74(m,2H),2.58(dtd,1H,J1=9.0 Hz, J2=5.5Hz, J3=5.3Hz, J4=3.6Hz), 2.20 (ddd, 1H, J1
=13.4Hz, J2=8.9Hz, J3=4.6Hz)
Embodiment 1A- embodiments 1B
The preparation method of embodiment 1A- embodiments 1B is substantially the same manner as Example 1, the difference is that catalyst is different,
Specifically it is shown in Table 1.
Table 1
| Catalyst | Molar yield | |
| Embodiment 1 | Metallic catalyst containing Ru | 90% |
| Embodiment 1A | Metallic catalyst containing Co | 86% |
| Embodiment 1B | Chiral phosphoric acid catalyst | 84% |
| Embodiment 1C | Chiral sulfonic acid catalyst | 73% |
Embodiment 2
(1) reduction reaction
Under nitrogen protection, tetrahydrofuran is added into the three-necked bottle of the compound (15.7 grams, 0.1 mole) comprising Formula II
(400 milliliters), and reactant is cooled to -78 DEG C, sodium borohydride (3.4 grams, 0.1 mole) is added portionwise in 30 minutes.
It is reacted 30 minutes at -78 DEG C, 0 DEG C is then warming up in 1 hour.It is quenched instead with saturated sodium-chloride water solution (100 milliliters)
It answers, saturation aqueous sodium potassium tartrate (420 milliliters) is added, reaction is quenched, it is mixed with ethyl acetate (1500 milliliters) diluting reaction
Object, liquid separation are closed, organic layer is washed with saturated ammonium chloride, water and saturated sodium-chloride successively.Organic layer is dried with magnesium sulfate, filtering,
Filtrate is concentrated, 13.6 grams of brown oil is obtained, is directly used in without purifying and reacts in next step.
(2) chiral resolution
Under nitrogen protection, the compound of formula III-A (20.2 grams, 0.1 mole) is dissolved in isopropanol (100 milliliters)
In, slowly (19.4 grams are dissolved in 50 milliliters of isopropanols the aqueous isopropanol of dropwise addition D- acetyl mandelic acids, and 0.1 rubs at room temperature
You), after stirring 1 hour, filtering, filter cake is recrystallized with butanone/normal heptane, obtains white solid, the i.e. mandelic acid of compound III
Salt.The white solid of gained is dissolved in purified water (100 milliliters), pH to 9-10 is neutralized to unsaturated carbonate aqueous solutions of potassium,
White solid, filtering is precipitated, filter cake water wash depressurizes lower drying, obtains 7.2 grams of the compound of formula III, and purity 99% is received
Rate 35%.
1HNMR (400MHz, DMSO) δ 7.50-7.31 (m, 3H), 4.04 (m, 1H), 3.62 (q, 2H, J=5.5Hz),
3.57-3.43(m,1H),3.27(ddd,1H ,J1=17.6Hz, J2=9.1Hz, J3=5.0Hz), 3.15-2.85 (m, 1H),
2.74(m,2H),2.58(dtd,1H,J1=9.0 Hz, J2=5.5Hz, J3=5.3Hz, J4=3.6Hz), 2.20 (ddd, 1H, J1
=13.4Hz, J2=8.9Hz, J3=4.6Hz)
Embodiment 2A- embodiments 2C
Embodiment 2A- embodiment 2C preparation methods steps (1) and (1) the step of embodiment 2 are essentially identical, difference
It is in reducing agent difference, is specifically shown in Table 2.Embodiment 2A- embodiment 2C preparation methods steps (2) and embodiment
2 the step of (2), is identical.
Table 2
| Reducing agent | Molar yield | |
| Embodiment 2 | Sodium borohydride | 35% |
| Embodiment 2A | Tetrahydrochysene lithium aluminium | 38% |
| Embodiment 2B | Acetic acid | 41% |
| Embodiment 2C | Hydrogen | 26% |
Embodiment 2D- embodiments 2H
The step of embodiment 2D- embodiment 2H preparation methods (1), is identical as (1) the step of embodiment 2, and embodiment 2D- is real
The step of applying 2H preparation methods (2) and (2) the step of embodiment 2 is essentially identical, the difference is that resolving agent is different, specifically
It is shown in Table 3.
Table 3
Embodiment 3
Under nitrogen protection, the compound of formula III (20.2 grams, 0.1 mole) is dissolved in acetone (100 milliliters),
(10.2 grams, 0.12 rubs for addition para-methylbenzenepyridinsulfonate sulfonate (2.85 grams, 0.01 mole) and 2,2-dimethoxypropane at room temperature
You), it after stirring 3 hours, is filtered by silicagel pad, filters off pigment, obtain colourless solution, white solid is concentrated to give under decompression, done
It is dry, obtain 23.4 grams of the compound of formula IV -1, purity 99%, yield 96.7%.
1HNMR (400MHz, DMSO) δ 7.50-7.31 (m, 3H), 4.08 (m, 1H, J=6.1Hz), 3.62 (q, 2H, J=
5.5Hz),3.57-3.43(m,1H),3.2 7(ddd,1H,J1=17.6Hz, J2=9.1Hz, J3=5.0Hz), 3.15-2.85
(m, 1H, J=24.2Hz), 2.58 (dtd, 1H, J1=9.0Hz, J2=5.5Hz, J3=5.3Hz, J4=3.6Hz), 2.48
(ddd,1H,J1=13.4Hz, J2=8.9Hz, J3=4.6Hz), 1.30 (s, 6H)
Embodiment 3A embodiments 3B
Embodiment 3A preparation methods are substantially the same manner as Example 3, the difference is that protective agent is different, are specifically shown in Table 4.
Table 4
| Protective agent | Molar yield | |
| Embodiment 3 | 2,2- dimethoxy propanes | 96.7% |
| Embodiment 3A | Chlorotriethyl silane | 95.3% |
Embodiment 4
Under nitrogen protection, add into ethyl alcohol (200 milliliters) solution of the compound of formula IV -1 (24.2 grams, 0.1 mole)
Enter hydroxylamine hydrochloride (21.0 grams, 0.3 mole) and triethylamine (30.3 grams, 0.3 mole).Reaction mixture refluxed 4 is small at 80 DEG C
When.Reaction mixture is cooled to room temperature, and is concentrated to dryness, (500 milliliters) dilutions of dichloromethane are then used.With sodium bicarbonate,
Water and salt water washing organic layer.It is dried over magnesium sulfate to merge organic layer, and concentrates to generate 28.3 grams of white foam solids, i.e.,
The compound of Formula V -1 can be directly used for reacting in next step without further purification.
Embodiment 5
Under nitrogen protection, to the n,N-Dimethylformamide of the compound of Formula V -1 (27.5 grams, 0.1 mole) (110 millis
Rise) carboxylic acid VI (20.5 grams, 0.1 mole), carbodiimides (23.0 grams, 0.12 mole) and 1- hydroxy benzos are added in solution
Triazole (16.2 grams, 0.12 mole).It reacts at room temperature 2 hours, reaction mixture is then heated to 80 DEG C, reaction 12 is small
When.Reaction mixture is cooled to room temperature, (250 milliliters) dilutions of ethyl acetate are used in combination.Use NaHCO3, water and salt water washing it is organic
Layer.Merge organic layer through MgSO4It is dry, and concentrate to generate 46.0 grams of white foam solids, the i.e. compound of Formula IV -1, no
It is purified to can be directly used for reacting in next step.
1HNMR (400MHz, DMSO) δ 8.53 (d, 1H, J=2.3Hz), 8.42 (dd, 1H, J1=7.6Hz, J2=
2.3Hz), 8.17 (d, 1H, J=7.7Hz), 7.97 (d, 1H, J=7.6Hz), 7.63-7 .50 (m, 2H), 5.28 (t, 1H, J=
5.0Hz), 4.99 (m, 1H, J=6.1Hz), 4.92 (s, 1H), 3.62 (q, 2H, J=5. 5Hz), 3.57-3.43 (m, 1H),
3.27(ddd,1H, J1=17.6Hz, J2=9.1Hz, J3=5.0Hz), 3.15-2.85 (m, 2H, J=24.2Hz), 2.58
(dtd,1H,J1=9.0Hz, J2=5.5Hz, J3=5.3Hz, J4=3.6Hz), 2.48 (ddd, 1H, J1=13.4Hz, J2=
8.9Hz,J3=4.6Hz), 1.39 (d, 6H, J=6.0Hz), 1.30 (s, 6H)
Embodiment 6
Under nitrogen protection, molten to the methanol solution (110 milliliters) of the compound of Formula VII -1 (44.4 grams, 0.1 mole)
Concentrated hydrochloric acid (5 milliliters, 0.06 mole) is added in liquid, reacts 2 hours at room temperature, white solid is precipitated, lower drying is depressurized in filtering
That is the compound of Formulas I, 26.8 grams of white solid, purity 99%, yield 66.3%.
1HNMR (400MHz, DMSO) δ 9.25 (s, 2H), 8.53 (d, 1H, J=2.3Hz), 8.42 (dd, 1H, J1=
7.6Hz,J2=2.3Hz), 8.17 (d, 1H, J=7.7Hz), 7.97 (d, 1H, J=7.6Hz), 7.63-7 .50 (m, 2H),
5.28 (t, 1H, J=5.0Hz), 4.99 (m, 1H, J=6.1Hz), 4.92 (s, 1H), 3.72 (q, 2H, J=5. 5Hz), 3.57-
3.43(m,1H),3.27(ddd,1H, J1=17.6Hz, J2=9.1Hz, J3=5.0Hz), 3.15-2.85 (m, 2H, J=
24.2Hz),2.53(dtd,1H,J1=9.0Hz, J2=5.5Hz, J3=5.3Hz, J4=3.6Hz), 2.30 (ddd, 1H, J1=
13.4Hz,J2=8.9Hz, J3=4.6Hz), 1.39 (d, 6H, J=6.0Hz).
Claims (9)
1. the preparation method of Ao Zhamode and its intermediate, this approach includes the following steps：With 2,3- dihydro -4- cyano -1- indenes
Ketone is raw material, and compound III is made through suitable method.The amido and hydroxyl of compound III are protected using protective agent,
Compound IV is made.Compound IV is subjected to salt treatment and obtains compound V.Compound V and compound VI are subjected to ring-closure reaction system
Obtain compound VII.Compound VII is carried out to be deprotected obtained Ao Zhamode.
A) with 2,3- dihydro -4- cyano -1- indones (compound as shown in II) for raw material, under suitable condition, chemical combination is synthesized
Object III.
B) compound IV is prepared by protection to the amido and hydroxyl of compound III using protective agent.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
C) compound V is made from azanol or the relevant salt treatment compound IV of azanol.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
D) compound VII is occurred obtained from condensation reaction by compound V and compound VI.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
E) compound I Ao Zhamode are prepared by sloughing the protecting group of Formula VII compound with deprotection method.
Wherein, R1For hydroxyl protection base, R2For amido protecting group.
2. the preparation method of Ao Zhamode according to claim 1, which is characterized in that the step a) is with compound
II is raw material, in the presence of a catalyst, through asymmetric reduction reaction prepare compound III.
。
3. the preparation method of Ao Zhamode according to claim 1, which is characterized in that the step a) is with compound
II is raw material, is condensed with ethylaminoethanol, under appropriate solvent, is restored to obtain the raceme formula of compound III with reducing agent
III-A, compound III-A are split under the conditions of chiral acid, obtain compound III.
。
4. the preparation method of Ao Zhamode intermediate compound IIIs according to claim 2, which is characterized in that described
Catalyst is selected from least one of metallic catalyst, chiral phosphoric acid catalyst or chiral sulfonic acid catalyst.Wherein metallic catalyst
Selected from containing Ru, Ni, Cu, the metallic catalyst of Pt or Co metals.
5. the preparation method of Ao Zhamode according to claim 3, which is characterized in that the reducing agent is hydroboration
At least one of object, tetrahydrochysene lithium aluminium, hydrogen, formic acid or formates.
6. the preparation method of Ao Zhamode according to claim 1, which is characterized in that the chiral resolving agent is that D- is flat
In peach acid, D- tartaric acid, D- camphoric acids, D- camphorsulfonic acids, D-ALPHA-Hydroxypropionic acid, D-malic acid, diacetone-L- 2-KLGs, D-Glu
At least one.
7. the compound as shown in formula IV.
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
8. compound shown as a formula V.
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
9. the compound as shown in Formula VII.
Wherein, R1For H or hydroxyl protection base；R2For H or amido protecting group.
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| CN108727292A (en) * | 2017-04-21 | 2018-11-02 | 宁波爱诺医药科技有限公司 | A kind of preparation method of Ao Zhamode and its intermediate |
| WO2021009306A1 (en) * | 2019-07-16 | 2021-01-21 | Synthon B.V. | Improved process for preparing ozanimod |
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