PT1899350E - Derivados de pirazolo[3,4-d]azepina como antagonistas de histamina h3 - Google Patents

Info

Publication number

PT1899350E

PT1899350E PT06818218T PT06818218T PT1899350E PT 1899350 E PT1899350 E PT 1899350E PT 06818218 T PT06818218 T PT 06818218T PT 06818218 T PT06818218 T PT 06818218T PT 1899350 E PT1899350 E PT 1899350E

Authority

PT

Portugal

Prior art keywords

tetrahydropyrazolo

azepin

mmol

phenyl

alkyl

Prior art date

2005-07-06

Links

• Espacenet
• Global Dossier
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• 239000003395 histamine H3 receptor antagonist Substances 0.000 title description 3
• RMUDBHOUKWNOLH-UHFFFAOYSA-N pyrazolo[3,4-d]azepine Chemical class C1=CN=CC=C2C=NN=C21 RMUDBHOUKWNOLH-UHFFFAOYSA-N 0.000 title description 2
• 238000000034 method Methods 0.000 claims abstract description 89
• 238000011282 treatment Methods 0.000 claims abstract description 20
• 230000008569 process Effects 0.000 claims abstract description 19
• 238000002360 preparation method Methods 0.000 claims abstract description 15
• 208000012902 Nervous system disease Diseases 0.000 claims abstract description 8
• 208000025966 Neurological disease Diseases 0.000 claims abstract description 8
• 150000001875 compounds Chemical class 0.000 claims description 220
• -1 hydroxy, cyano, amino Chemical group 0.000 claims description 156
• 125000000623 heterocyclic group Chemical group 0.000 claims description 50
• 125000001424 substituent group Chemical group 0.000 claims description 50
• 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 47
• 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 39
• 150000003839 salts Chemical class 0.000 claims description 38
• 229910052739 hydrogen Inorganic materials 0.000 claims description 35
• 239000001257 hydrogen Substances 0.000 claims description 34
• 125000000217 alkyl group Chemical group 0.000 claims description 32
• 125000003118 aryl group Chemical group 0.000 claims description 31
• 229910052736 halogen Inorganic materials 0.000 claims description 30
• 150000002367 halogens Chemical class 0.000 claims description 30
• UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 24
• 125000001072 heteroaryl group Chemical group 0.000 claims description 23
• 125000004093 cyano group Chemical group *C#N 0.000 claims description 20
• 125000006272 (C3-C7) cycloalkyl group Chemical group 0.000 claims description 17
• 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 16
• 125000000171 (C1-C6) haloalkyl group Chemical group 0.000 claims description 15
• 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 15
• 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
• 229910052757 nitrogen Inorganic materials 0.000 claims description 14
• JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 claims description 12
• 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 12
• QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 12
• XYOVOXDWRFGKEX-UHFFFAOYSA-N azepine Chemical compound N1C=CC=CC=C1 XYOVOXDWRFGKEX-UHFFFAOYSA-N 0.000 claims description 11
• 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 11
• 239000012453 solvate Substances 0.000 claims description 11
• 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
• 239000003814 drug Substances 0.000 claims description 9
• 239000008194 pharmaceutical composition Substances 0.000 claims description 9
• KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 claims description 8
• 125000000753 cycloalkyl group Chemical group 0.000 claims description 8
• 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 7
• SOAXOIPIFFFTDI-UHFFFAOYSA-N 2-(4-bromophenyl)-6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine Chemical compound C1=CC(Br)=CC=C1N1N=C2CCN(C3CCC3)CCC2=C1 SOAXOIPIFFFTDI-UHFFFAOYSA-N 0.000 claims description 7
• 125000005418 aryl aryl group Chemical group 0.000 claims description 7
• 201000010099 disease Diseases 0.000 claims description 6
• UTZALURJTZPLMS-UHFFFAOYSA-N 1-[5-(6-propan-2-yl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)pyridin-2-yl]pyrrolidin-2-one Chemical compound N1=C2CCN(C(C)C)CCC2=CN1C(C=N1)=CC=C1N1CCCC1=O UTZALURJTZPLMS-UHFFFAOYSA-N 0.000 claims description 5
• 208000024827 Alzheimer disease Diseases 0.000 claims description 5
• 125000004186 cyclopropylmethyl group Chemical group [H]C([H])(*)C1([H])C([H])([H])C1([H])[H] 0.000 claims description 5
• 239000003937 drug carrier Substances 0.000 claims description 5
• DTFNQANOSNEOCD-UHFFFAOYSA-N 1-[4-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-3-methylimidazolidin-2-one Chemical compound O=C1N(C)CCN1C1=CC=C(N2N=C3CCN(CCC3=C2)C2CCC2)C=C1 DTFNQANOSNEOCD-UHFFFAOYSA-N 0.000 claims description 4
• QYXNJPQHJBBEBP-UHFFFAOYSA-N 3-[4-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-1,3-oxazolidin-2-one Chemical compound O=C1OCCN1C1=CC=C(N2N=C3CCN(CCC3=C2)C2CCC2)C=C1 QYXNJPQHJBBEBP-UHFFFAOYSA-N 0.000 claims description 4
• KQGXBEQKKDNBEF-UHFFFAOYSA-N 3-[4-(6-propan-2-yl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-1,3-oxazolidin-2-one Chemical compound N1=C2CCN(C(C)C)CCC2=CN1C(C=C1)=CC=C1N1CCOC1=O KQGXBEQKKDNBEF-UHFFFAOYSA-N 0.000 claims description 4
• NZGTZGNHBYHCHG-UHFFFAOYSA-N 4-[(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)methyl]benzonitrile Chemical compound C1=CC(C#N)=CC=C1CN1N=C2CCN(C3CCC3)CCC2=C1 NZGTZGNHBYHCHG-UHFFFAOYSA-N 0.000 claims description 4
• 208000010877 cognitive disease Diseases 0.000 claims description 4
• 238000004519 manufacturing process Methods 0.000 claims description 4
• 238000011321 prophylaxis Methods 0.000 claims description 4
• 239000000126 substance Substances 0.000 claims description 4
• UNFFLKKHVRORSL-UHFFFAOYSA-N 1-[4-(6-ethyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]pyrrolidin-2-one Chemical compound N1=C2CCN(CC)CCC2=CN1C(C=C1)=CC=C1N1CCCC1=O UNFFLKKHVRORSL-UHFFFAOYSA-N 0.000 claims description 3
• PCCHYOUYRRGEJP-UHFFFAOYSA-N 1-[5-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)pyridin-2-yl]pyrrolidin-2-one Chemical compound O=C1CCCN1C1=CC=C(N2N=C3CCN(CCC3=C2)C2CCC2)C=N1 PCCHYOUYRRGEJP-UHFFFAOYSA-N 0.000 claims description 3
• DGBYHHMLWZHXBJ-UHFFFAOYSA-N 1-methyl-3-[4-[6-(2-methylpropyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl]phenyl]imidazolidin-2-one Chemical compound N1=C2CCN(CC(C)C)CCC2=CN1C(C=C1)=CC=C1N1CCN(C)C1=O DGBYHHMLWZHXBJ-UHFFFAOYSA-N 0.000 claims description 3
• ULDBTTCHMFJGSK-UHFFFAOYSA-N 3-[4-[6-(2-methylpropyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl]phenyl]-1,3-oxazolidin-2-one Chemical compound N1=C2CCN(CC(C)C)CCC2=CN1C(C=C1)=CC=C1N1CCOC1=O ULDBTTCHMFJGSK-UHFFFAOYSA-N 0.000 claims description 3
• ULJXVGFBRBQVFN-UHFFFAOYSA-N 4-(6-propan-2-yl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)benzamide Chemical compound N1=C2CCN(C(C)C)CCC2=CN1C1=CC=C(C(N)=O)C=C1 ULJXVGFBRBQVFN-UHFFFAOYSA-N 0.000 claims description 3
• WRTSWARSQLNKPU-UHFFFAOYSA-N 4-[6-(2-methylpropyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl]benzamide Chemical compound N1=C2CCN(CC(C)C)CCC2=CN1C1=CC=C(C(N)=O)C=C1 WRTSWARSQLNKPU-UHFFFAOYSA-N 0.000 claims description 3
• PPKYYYZMDGNSDA-UHFFFAOYSA-N 5-[4-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-3-methyl-1,2,4-oxadiazole Chemical compound CC1=NOC(C=2C=CC(=CC=2)N2N=C3CCN(CCC3=C2)C2CCC2)=N1 PPKYYYZMDGNSDA-UHFFFAOYSA-N 0.000 claims description 3
• ZZWYBGWBUVCGCI-UHFFFAOYSA-N 5-[4-(6-cyclopentyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-3-methyl-1,2,4-oxadiazole Chemical compound CC1=NOC(C=2C=CC(=CC=2)N2N=C3CCN(CCC3=C2)C2CCCC2)=N1 ZZWYBGWBUVCGCI-UHFFFAOYSA-N 0.000 claims description 3
• BYXQPVYYCODYFR-UHFFFAOYSA-N 6-cyclobutyl-2-(4-methylsulfonylphenyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine Chemical compound C1=CC(S(=O)(=O)C)=CC=C1N1N=C2CCN(C3CCC3)CCC2=C1 BYXQPVYYCODYFR-UHFFFAOYSA-N 0.000 claims description 3
• IRXCERGGZYNFJI-UHFFFAOYSA-N 6-cyclobutyl-2-(4-piperidin-1-ylphenyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine Chemical compound C1CCC1N1CCC2=NN(C=3C=CC(=CC=3)N3CCCCC3)C=C2CC1 IRXCERGGZYNFJI-UHFFFAOYSA-N 0.000 claims description 3
• RUGQPDGXAJMLNQ-UHFFFAOYSA-N 6-cyclobutyl-2-(4-pyrrolidin-1-ylphenyl)-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine Chemical compound C1CCC1N1CCC2=NN(C=3C=CC(=CC=3)N3CCCC3)C=C2CC1 RUGQPDGXAJMLNQ-UHFFFAOYSA-N 0.000 claims description 3
• 208000028698 Cognitive impairment Diseases 0.000 claims description 3
• 101100134922 Gallus gallus COR5 gene Proteins 0.000 claims description 3
• 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 claims description 3
• LNUZKOYKRTWVLK-UHFFFAOYSA-N n-[4-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]methanesulfonamide Chemical compound C1=CC(NS(=O)(=O)C)=CC=C1N1N=C2CCN(C3CCC3)CCC2=C1 LNUZKOYKRTWVLK-UHFFFAOYSA-N 0.000 claims description 3
• 208000015122 neurodegenerative disease Diseases 0.000 claims description 3
• 239000000546 pharmaceutical excipient Substances 0.000 claims description 3
• 230000001225 therapeutic effect Effects 0.000 claims description 3
• 230000001149 cognitive effect Effects 0.000 claims description 2
• 230000007812 deficiency Effects 0.000 claims description 2
• 101100440696 Caenorhabditis elegans cor-1 gene Proteins 0.000 claims 2
• MGKKZYOFKNDJGD-UHFFFAOYSA-N 3-[4-(6-cyclobutyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-1-methylimidazolidine-2,4-dione Chemical compound O=C1N(C)CC(=O)N1C1=CC=C(N2N=C3CCN(CCC3=C2)C2CCC2)C=C1 MGKKZYOFKNDJGD-UHFFFAOYSA-N 0.000 claims 1
• XEZCPAVXKBUPRY-UHFFFAOYSA-N 3-[4-(6-cyclopentyl-4,5,7,8-tetrahydropyrazolo[3,4-d]azepin-2-yl)phenyl]-1,3-oxazolidin-2-one Chemical compound O=C1OCCN1C1=CC=C(N2N=C3CCN(CCC3=C2)C2CCCC2)C=C1 XEZCPAVXKBUPRY-UHFFFAOYSA-N 0.000 claims 1
• IUMZUJYPSCQKNK-UHFFFAOYSA-N 6-cyclobutyl-2-[1-(6-methylpyridin-3-yl)piperidin-4-yl]-4,5,7,8-tetrahydropyrazolo[3,4-d]azepine Chemical compound C1=NC(C)=CC=C1N1CCC(N2N=C3CCN(CCC3=C2)C2CCC2)CC1 IUMZUJYPSCQKNK-UHFFFAOYSA-N 0.000 claims 1
• 235000006576 Althaea officinalis Nutrition 0.000 claims 1
• 241000269821 Scombridae Species 0.000 claims 1
• 150000002431 hydrogen Chemical group 0.000 claims 1
• 235000020640 mackerel Nutrition 0.000 claims 1
• 239000000203 mixture Substances 0.000 abstract description 283
• 239000005557 antagonist Substances 0.000 abstract description 6
• 230000000144 pharmacologic effect Effects 0.000 abstract description 3
• 208000020016 psychiatric disease Diseases 0.000 abstract description 3
• 150000003217 pyrazoles Chemical class 0.000 abstract description 3
• 230000000926 neurological effect Effects 0.000 abstract description 2
• OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 775
• YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 450
• QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 206
• XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 155
• XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 132
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 110
• 239000000243 solution Substances 0.000 description 109
• 229910021529 ammonia Inorganic materials 0.000 description 103
• LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 96
• 238000012799 strong cation exchange Methods 0.000 description 80
• 239000002904 solvent Substances 0.000 description 78
• 229910052786 argon Inorganic materials 0.000 description 66
• CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 62
• CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 57
• VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 51
• 239000012321 sodium triacetoxyborohydride Substances 0.000 description 51
• 238000003756 stirring Methods 0.000 description 46
• VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 42
• ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 42
• 238000010992 reflux Methods 0.000 description 42
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 39
• RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 37
• 239000000047 product Substances 0.000 description 37
• HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
• ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 33
• 229910052943 magnesium sulfate Inorganic materials 0.000 description 31
• 235000019341 magnesium sulphate Nutrition 0.000 description 31
• BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 30
• 239000011541 reaction mixture Substances 0.000 description 30
• 238000006243 chemical reaction Methods 0.000 description 29
• DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 27
• VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 27
• NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 description 26
• AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 26
• JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 26
• KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 25
• 239000012043 crude product Substances 0.000 description 24
• 210000004027 cell Anatomy 0.000 description 23
• 238000010898 silica gel chromatography Methods 0.000 description 23
• SHQSVMDWKBRBGB-UHFFFAOYSA-N cyclobutanone Chemical compound O=C1CCC1 SHQSVMDWKBRBGB-UHFFFAOYSA-N 0.000 description 22
• 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 21
• RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 19
• 238000004440 column chromatography Methods 0.000 description 19
• 230000002829 reductive effect Effects 0.000 description 19
• 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 19
• CYPYTURSJDMMMP-WVCUSYJESA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].[Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 CYPYTURSJDMMMP-WVCUSYJESA-N 0.000 description 18
• UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 18
• OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 18
• 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 18
• 229910021595 Copper(I) iodide Inorganic materials 0.000 description 17
• 239000012298 atmosphere Substances 0.000 description 16
• LSXDOTMGLUJQCM-UHFFFAOYSA-M copper(i) iodide Chemical compound I[Cu] LSXDOTMGLUJQCM-UHFFFAOYSA-M 0.000 description 16
• DILRJUIACXKSQE-UHFFFAOYSA-N n',n'-dimethylethane-1,2-diamine Chemical compound CN(C)CCN DILRJUIACXKSQE-UHFFFAOYSA-N 0.000 description 16
• 239000000725 suspension Substances 0.000 description 16
• PEJXGIXLNJDHNZ-UHFFFAOYSA-N 6-benzyl-4,5,7,8-tetrahydro-1h-pyrazolo[3,4-d]azepine Chemical compound C1CC2=CNN=C2CCN1CC1=CC=CC=C1 PEJXGIXLNJDHNZ-UHFFFAOYSA-N 0.000 description 15
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• 229910000027 potassium carbonate Inorganic materials 0.000 description 15
• HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 14
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• 229960001340 histamine Drugs 0.000 description 13
• 239000002808 molecular sieve Substances 0.000 description 13
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• 239000002585 base Substances 0.000 description 12
• 239000010410 layer Substances 0.000 description 12
• NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 11
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• IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 11
• 238000000746 purification Methods 0.000 description 11
• OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 10
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• FYDZIWMYRVUMCV-UHFFFAOYSA-N 1-[5-(5,6,7,8-tetrahydro-4h-pyrazolo[3,4-d]azepin-2-yl)pyridin-2-yl]pyrrolidin-2-one Chemical compound O=C1CCCN1C1=CC=C(N2N=C3CCNCCC3=C2)C=N1 FYDZIWMYRVUMCV-UHFFFAOYSA-N 0.000 description 9
• 239000002609 medium Substances 0.000 description 9
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