RU2567390C2 - Получение нейростимулирующего пиперазина - Google Patents
Получение нейростимулирующего пиперазина Download PDFInfo
- Publication number
- RU2567390C2 RU2567390C2 RU2012111227/04A RU2012111227A RU2567390C2 RU 2567390 C2 RU2567390 C2 RU 2567390C2 RU 2012111227/04 A RU2012111227/04 A RU 2012111227/04A RU 2012111227 A RU2012111227 A RU 2012111227A RU 2567390 C2 RU2567390 C2 RU 2567390C2
- Authority
- RU
- Russia
- Prior art keywords
- formula
- compound
- reaction
- ambient temperature
- equiv
- Prior art date
Links
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 title description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000010 aprotic solvent Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000002904 solvent Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 125000006239 protecting group Chemical group 0.000 claims description 6
- 239000003586 protic polar solvent Substances 0.000 claims description 3
- 125000003088 (fluoren-9-ylmethoxy)carbonyl group Chemical group 0.000 claims description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims 1
- 230000004766 neurogenesis Effects 0.000 abstract description 5
- 150000004885 piperazines Chemical class 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000004936 stimulating effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 61
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 42
- 238000004128 high performance liquid chromatography Methods 0.000 description 41
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 40
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 36
- 239000000725 suspension Substances 0.000 description 32
- 239000007787 solid Substances 0.000 description 28
- 239000000243 solution Substances 0.000 description 26
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical class CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 19
- 239000000047 product Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- BMFVGAAISNGQNM-UHFFFAOYSA-N isopentylamine Chemical compound CC(C)CCN BMFVGAAISNGQNM-UHFFFAOYSA-N 0.000 description 18
- 125000000217 alkyl group Chemical group 0.000 description 15
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 15
- 229940011051 isopropyl acetate Drugs 0.000 description 15
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 15
- 239000012065 filter cake Substances 0.000 description 12
- 239000011541 reaction mixture Substances 0.000 description 12
- 125000003118 aryl group Chemical group 0.000 description 10
- -1 benzoyl halide Chemical class 0.000 description 10
- 238000001914 filtration Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 125000003342 alkenyl group Chemical group 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 8
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical class OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- IBRSSZOHCGUTHI-UHFFFAOYSA-N 2-chloropyridine-3-carboxylic acid Chemical compound OC(=O)C1=CC=CN=C1Cl IBRSSZOHCGUTHI-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 6
- 229940073608 benzyl chloride Drugs 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 125000001072 heteroaryl group Chemical group 0.000 description 6
- 239000012044 organic layer Substances 0.000 description 6
- CWXPZXBSDSIRCS-UHFFFAOYSA-N tert-butyl piperazine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCNCC1 CWXPZXBSDSIRCS-UHFFFAOYSA-N 0.000 description 6
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 5
- 125000002619 bicyclic group Chemical group 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 239000005457 ice water Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 125000002950 monocyclic group Chemical group 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000012317 TBTU Substances 0.000 description 4
- CLZISMQKJZCZDN-UHFFFAOYSA-N [benzotriazol-1-yloxy(dimethylamino)methylidene]-dimethylazanium Chemical compound C1=CC=C2N(OC(N(C)C)=[N+](C)C)N=NC2=C1 CLZISMQKJZCZDN-UHFFFAOYSA-N 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229960003512 nicotinic acid Drugs 0.000 description 4
- 235000001968 nicotinic acid Nutrition 0.000 description 4
- 239000011664 nicotinic acid Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000005574 benzylation reaction Methods 0.000 description 3
- 125000001246 bromo group Chemical group Br* 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 235000019439 ethyl acetate Nutrition 0.000 description 3
- 125000004446 heteroarylalkyl group Chemical group 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 150000002466 imines Chemical class 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide Substances CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 description 2
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 2
- 239000007821 HATU Substances 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000012296 anti-solvent Substances 0.000 description 2
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010511 deprotection reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000001595 flow curve Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 150000003840 hydrochlorides Chemical class 0.000 description 2
- NPZTUJOABDZTLV-UHFFFAOYSA-N hydroxybenzotriazole Substances O=C1C=CC=C2NNN=C12 NPZTUJOABDZTLV-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 125000005647 linker group Chemical group 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 description 1
- IQXXEPZFOOTTBA-UHFFFAOYSA-N 1-benzylpiperazine Chemical compound C=1C=CC=CC=1CN1CCNCC1 IQXXEPZFOOTTBA-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 208000024827 Alzheimer disease Diseases 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- LVZWSLJZHVFIQJ-UHFFFAOYSA-N Cyclopropane Chemical compound C1CC1 LVZWSLJZHVFIQJ-UHFFFAOYSA-N 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical class CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 description 1
- JOCBASBOOFNAJA-UHFFFAOYSA-N N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid Chemical compound OCC(CO)(CO)NCCS(O)(=O)=O JOCBASBOOFNAJA-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 102000001708 Protein Isoforms Human genes 0.000 description 1
- 108010029485 Protein Isoforms Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 208000030886 Traumatic Brain injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001266 acyl halides Chemical class 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052789 astatine Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical class [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 239000012455 biphasic mixture Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- GTCAXTIRRLKXRU-UHFFFAOYSA-N carbamic acid methyl ester Natural products COC(N)=O GTCAXTIRRLKXRU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000000259 cinnolinyl group Chemical group N1=NC(=CC2=CC=CC=C12)* 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 208000010877 cognitive disease Diseases 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004404 heteroalkyl group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 125000003453 indazolyl group Chemical group N1N=C(C2=C1C=CC=C2)* 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Chemical group 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000001786 isothiazolyl group Chemical group 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 208000027061 mild cognitive impairment Diseases 0.000 description 1
- 210000002894 multi-fate stem cell Anatomy 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 125000000627 niacin group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 201000000980 schizophrenia Diseases 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- BEOOHQFXGBMRKU-UHFFFAOYSA-N sodium cyanoborohydride Chemical compound [Na+].[B-]C#N BEOOHQFXGBMRKU-UHFFFAOYSA-N 0.000 description 1
- 239000012321 sodium triacetoxyborohydride Substances 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XBXCNNQPRYLIDE-UHFFFAOYSA-N tert-butylcarbamic acid Chemical compound CC(C)(C)NC(O)=O XBXCNNQPRYLIDE-UHFFFAOYSA-N 0.000 description 1
- 125000001981 tert-butyldimethylsilyl group Chemical group [H]C([H])([H])[Si]([H])(C([H])([H])[H])[*]C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000037 tert-butyldiphenylsilyl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1[Si]([H])([*]C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 125000005490 tosylate group Chemical group 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009529 traumatic brain injury Effects 0.000 description 1
- 125000002827 triflate group Chemical group FC(S(=O)(=O)O*)(F)F 0.000 description 1
- 150000008648 triflates Chemical class 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/72—Nitrogen atoms
- C07D213/74—Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/496—Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pharmacology & Pharmacy (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurosurgery (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Neurology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Psychiatry (AREA)
- Hospice & Palliative Care (AREA)
- Epidemiology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyridine Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Hydrogenated Pyridines (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23647709P | 2009-08-24 | 2009-08-24 | |
| US61/236,477 | 2009-08-24 | ||
| PCT/US2010/046537 WO2011028548A1 (en) | 2009-08-24 | 2010-08-24 | Synthesis of a neurostimulative piperazine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2012111227A RU2012111227A (ru) | 2013-10-10 |
| RU2567390C2 true RU2567390C2 (ru) | 2015-11-10 |
Family
ID=43649584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2012111227/04A RU2567390C2 (ru) | 2009-08-24 | 2010-08-24 | Получение нейростимулирующего пиперазина |
Country Status (22)
| Country | Link |
|---|---|
| US (2) | US9278933B2 (enExample) |
| EP (1) | EP2470182B1 (enExample) |
| JP (1) | JP5727482B2 (enExample) |
| KR (1) | KR101701362B1 (enExample) |
| CN (2) | CN105693601A (enExample) |
| AU (1) | AU2010289802C1 (enExample) |
| BR (1) | BR112012004161B1 (enExample) |
| CA (1) | CA2772080C (enExample) |
| CL (1) | CL2012000493A1 (enExample) |
| DK (1) | DK2470182T3 (enExample) |
| ES (1) | ES2475721T3 (enExample) |
| HR (1) | HRP20140621T1 (enExample) |
| IL (1) | IL218298A (enExample) |
| IN (1) | IN2012DN02370A (enExample) |
| MX (1) | MX2012002335A (enExample) |
| NZ (1) | NZ598891A (enExample) |
| PL (1) | PL2470182T3 (enExample) |
| PT (1) | PT2470182E (enExample) |
| RU (1) | RU2567390C2 (enExample) |
| SG (1) | SG178867A1 (enExample) |
| SI (1) | SI2470182T1 (enExample) |
| WO (1) | WO2011028548A1 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN2012DN02370A (enExample) * | 2009-08-24 | 2015-08-21 | Neuralstem Inc | |
| WO2018048927A1 (en) * | 2016-09-12 | 2018-03-15 | Neuralstem, Inc. | Amelioration of neural deficits associated with diabetes |
| US20180104240A1 (en) * | 2016-10-18 | 2018-04-19 | Neuralstem, Inc. | Amelioration of radiation-induced cognitive dysfunction |
| US10042957B2 (en) | 2017-01-12 | 2018-08-07 | Innovationdock, Inc. | Devices and methods for implementing dynamic collaborative workflow systems |
| WO2018148733A1 (en) * | 2017-02-13 | 2018-08-16 | Neuralstem, Inc. | Amelioration of certain deficiencies due to stroke |
| CN117377664A (zh) * | 2020-12-23 | 2024-01-09 | 贝勒医学院 | 孤儿核受体tlx的小分子调节剂 |
| JP2024520722A (ja) | 2021-06-03 | 2024-05-24 | オルト・ニューロサイエンス・インコーポレイテッド | 不良な認知を有するうつ病患者の治療方法及びベンジルピペラジン－アミノピリジン剤の恩恵を受ける他の患者の選択 |
| US12208096B2 (en) | 2022-12-05 | 2025-01-28 | Alto Neuroscience, Inc. | Effective treatment of depression in patients having impaired learning and/or memory or certain EEG characteristics with a benzylpiperazine-aminopyridine agent |
| AU2023391488A1 (en) | 2022-12-05 | 2025-05-22 | Alto Neuroscience, Inc. | Effective treatment of depression in patients having impaired learning and/or memory or certain eeg characteristics with a benzylpiperazine-aminopyridine agent |
| US12233059B2 (en) | 2022-12-05 | 2025-02-25 | Alto Neuroscience, Inc. | Effective treatment of depression in patients having impaired learning and/or memory or certain EEG characteristics with a benzylpiperazine-aminopyridine agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU715023A3 (ru) * | 1977-06-30 | 1980-02-05 | Эдьт Дьедьсерведьесети Дьяр (Инопредприятие) | Способ получени амидов пиридинкарбоновой кислоты |
| RU2005112752A (ru) * | 2002-09-27 | 2006-01-20 | Глэксо Груп Лимитед (GB) | Производные пиридина в качестве модуляторов рецептора сb2 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54122283A (en) * | 1978-03-13 | 1979-09-21 | Sumitomo Chem Co Ltd | Novel quinazoline derivative and its preparation |
| US6995162B2 (en) * | 2001-01-12 | 2006-02-07 | Amgen Inc. | Substituted alkylamine derivatives and methods of use |
| DE60330323D1 (de) * | 2002-03-29 | 2010-01-14 | Schering Corp | Stereoselektive alkylierung von chirale 2-methyl-4-geschützte piperazinen |
| EP1576134B1 (en) * | 2002-12-09 | 2013-03-06 | Judith Kelleher-Andersson | Method for discovering neurogenic agents |
| BRPI0414209B8 (pt) * | 2003-09-09 | 2021-05-25 | Hoffmann La Roche | derivados de 1-(2-amino-benzol)-piperazina, seus processos de preparação e seu uso, e medicamento |
| EP1828165B1 (en) | 2004-10-29 | 2013-03-20 | Msd K.K. | Novel aminopyridine derivatives having aurora a selective inhibitory action |
| US7754724B2 (en) * | 2005-06-30 | 2010-07-13 | Dow Agrosciences Llc | N-substituted piperazines |
| AU2006329007A1 (en) * | 2005-12-20 | 2007-06-28 | Novartis Ag | Nicotinic acid derivatives as modulators of metabotropic glutamate receptors |
| IN2012DN02370A (enExample) * | 2009-08-24 | 2015-08-21 | Neuralstem Inc |
-
2010
- 2010-08-24 IN IN2370DEN2012 patent/IN2012DN02370A/en unknown
- 2010-08-24 JP JP2012526928A patent/JP5727482B2/ja active Active
- 2010-08-24 NZ NZ598891A patent/NZ598891A/en not_active IP Right Cessation
- 2010-08-24 CN CN201511009541.1A patent/CN105693601A/zh active Pending
- 2010-08-24 HR HRP20140621AT patent/HRP20140621T1/hr unknown
- 2010-08-24 PL PL10814260T patent/PL2470182T3/pl unknown
- 2010-08-24 RU RU2012111227/04A patent/RU2567390C2/ru not_active IP Right Cessation
- 2010-08-24 WO PCT/US2010/046537 patent/WO2011028548A1/en not_active Ceased
- 2010-08-24 AU AU2010289802A patent/AU2010289802C1/en active Active
- 2010-08-24 PT PT108142605T patent/PT2470182E/pt unknown
- 2010-08-24 US US13/392,489 patent/US9278933B2/en active Active
- 2010-08-24 SG SG2012012878A patent/SG178867A1/en unknown
- 2010-08-24 CA CA2772080A patent/CA2772080C/en active Active
- 2010-08-24 BR BR112012004161A patent/BR112012004161B1/pt active IP Right Grant
- 2010-08-24 ES ES10814260.5T patent/ES2475721T3/es active Active
- 2010-08-24 CN CN2010800465155A patent/CN102711764A/zh active Pending
- 2010-08-24 DK DK10814260.5T patent/DK2470182T3/da active
- 2010-08-24 KR KR1020127007653A patent/KR101701362B1/ko active Active
- 2010-08-24 SI SI201030669T patent/SI2470182T1/sl unknown
- 2010-08-24 EP EP10814260.5A patent/EP2470182B1/en active Active
- 2010-08-24 MX MX2012002335A patent/MX2012002335A/es active IP Right Grant
-
2012
- 2012-02-23 IL IL218298A patent/IL218298A/en active IP Right Grant
- 2012-02-24 CL CL2012000493A patent/CL2012000493A1/es unknown
-
2015
- 2015-12-09 US US14/964,397 patent/US9481649B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU715023A3 (ru) * | 1977-06-30 | 1980-02-05 | Эдьт Дьедьсерведьесети Дьяр (Инопредприятие) | Способ получени амидов пиридинкарбоновой кислоты |
| RU2005112752A (ru) * | 2002-09-27 | 2006-01-20 | Глэксо Груп Лимитед (GB) | Производные пиридина в качестве модуляторов рецептора сb2 |
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2567390C2 (ru) | Получение нейростимулирующего пиперазина | |
| JP5426560B2 (ja) | 新規なヒストンデアセチラーゼインヒビター、その調製方法および使用 | |
| WO2004108699A1 (en) | Process for the preparation of the anti-cancer drug imatinib and its analogues | |
| JP6811717B2 (ja) | トピロキソスタット及びその中間体の調製のための方法 | |
| CN112250682B (zh) | 一种芳杂环修饰的萘酰亚胺衍生物及其制备方法和用途 | |
| RU2715233C2 (ru) | Способ получения производных азотистого иприта | |
| WO1994002472A1 (fr) | Derive de thiazoline | |
| JP4549531B2 (ja) | １，３−二置換−４−オキソ環式尿素の製造方法 | |
| CN112272665A (zh) | 制备立他司特的方法 | |
| JP4514950B2 (ja) | １，３−二置換−４−オキソ環式尿素の製造方法 | |
| US7893269B2 (en) | Process for the manufacture of 3-hydroxy-N-alkyl-1-cycloalky1-6-alkyl-4-oxo-1,4-dihydropyridine-2-carboxamide and its related analogues | |
| JP6325139B2 (ja) | カルムスチンの安全で効率的な製造方法 | |
| EP3475268B1 (en) | Compounds for treating disorders sensitive to serotoninergic regulation controlled by the 5-ht1a receptors | |
| HK1172844B (en) | Synthesis of a neurostimulative piperazine | |
| FI76787B (fi) | Foerfarande foer framstaellning av 5-(cyan eller karbanyl)-/3-4'-bipyridin/-6(1h)-on och iminiumsalt till anvaendning som mellanprodukt i foerfarandet. | |
| KR101868438B1 (ko) | 아미드 유도체의 제조방법 | |
| CN115368261A (zh) | N-烯丙基-n-苄基-2-(苄基氨基)乙酰胺的合成方法 | |
| KR100453379B1 (ko) | 피페리딘 유도체의 제조방법 | |
| US6333414B1 (en) | Process for the synthesis of trisubstituted oxazoles | |
| CN112094247A (zh) | 头孢菌素类药物中间体及其合成方法 | |
| NZ538325A (en) | Process for the preparation of tetrasubstituted imidazole derivatives and novel crystalline structures thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20190825 |