NO135751B - - Google Patents
Download PDFInfo
- Publication number
- NO135751B NO135751B NO741170A NO741170A NO135751B NO 135751 B NO135751 B NO 135751B NO 741170 A NO741170 A NO 741170A NO 741170 A NO741170 A NO 741170A NO 135751 B NO135751 B NO 135751B
- Authority
- NO
- Norway
- Prior art keywords
- imidazoline
- residue
- dichlorophenylamino
- melting point
- yield
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 claims description 24
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 22
- 125000002252 acyl group Chemical group 0.000 claims description 18
- 150000001448 anilines Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 239000013067 intermediate product Substances 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 235000005985 organic acids Nutrition 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 230000001077 hypotensive effect Effects 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 150000003138 primary alcohols Chemical class 0.000 claims description 2
- 208000001953 Hypotension Diseases 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- 208000021822 hypotensive Diseases 0.000 claims 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 69
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 67
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 64
- 238000002844 melting Methods 0.000 description 56
- 230000008018 melting Effects 0.000 description 56
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 47
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 45
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- JDMFXJULNGEPOI-UHFFFAOYSA-N 2,6-dichloroaniline Chemical compound NC1=C(Cl)C=CC=C1Cl JDMFXJULNGEPOI-UHFFFAOYSA-N 0.000 description 16
- 235000011121 sodium hydroxide Nutrition 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 15
- -1 e.g. acetic acid Chemical class 0.000 description 15
- GJSURZIOUXUGAL-UHFFFAOYSA-N Clonidine Chemical compound ClC1=CC=CC(Cl)=C1NC1=NCCN1 GJSURZIOUXUGAL-UHFFFAOYSA-N 0.000 description 14
- 238000010992 reflux Methods 0.000 description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 12
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 11
- 239000007858 starting material Substances 0.000 description 11
- 239000012071 phase Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- JJWACYUTERPMBM-UHFFFAOYSA-N 1-acetylimidazolidin-2-one Chemical compound CC(=O)N1CCNC1=O JJWACYUTERPMBM-UHFFFAOYSA-N 0.000 description 8
- ZNIFSRGNXRYGHF-UHFFFAOYSA-N Clonidine hydrochloride Chemical compound Cl.ClC1=CC=CC(Cl)=C1NC1=NCCN1 ZNIFSRGNXRYGHF-UHFFFAOYSA-N 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 8
- 230000007017 scission Effects 0.000 description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 description 8
- 235000011152 sodium sulphate Nutrition 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 7
- 238000003776 cleavage reaction Methods 0.000 description 7
- 239000012074 organic phase Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- AFINVMDZLRAKEV-UHFFFAOYSA-N 1-[2-(2,6-dichloroanilino)-4,5-dihydroimidazol-1-yl]ethanone Chemical compound CC(=O)N1CCN=C1NC1=C(Cl)C=CC=C1Cl AFINVMDZLRAKEV-UHFFFAOYSA-N 0.000 description 6
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 6
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- 230000001476 alcoholic effect Effects 0.000 description 6
- 239000008346 aqueous phase Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 4
- MPSSSVUOOMDBRF-UHFFFAOYSA-N 1-propanoylimidazolidin-2-one Chemical compound CCC(=O)N1CCNC1=O MPSSSVUOOMDBRF-UHFFFAOYSA-N 0.000 description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 4
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 4
- HKNSIVFWRXBWCK-UHFFFAOYSA-N [N].NC1=CC=CC=C1 Chemical compound [N].NC1=CC=CC=C1 HKNSIVFWRXBWCK-UHFFFAOYSA-N 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- RLFWWDJHLFCNIJ-UHFFFAOYSA-N Aminoantipyrine Natural products CN1C(C)=C(N)C(=O)N1C1=CC=CC=C1 RLFWWDJHLFCNIJ-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000010933 acylation Effects 0.000 description 3
- 238000005917 acylation reaction Methods 0.000 description 3
- VEQOALNAAJBPNY-UHFFFAOYSA-N antipyrine Chemical compound CN1C(C)=CC(=O)N1C1=CC=CC=C1 VEQOALNAAJBPNY-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 125000002636 imidazolinyl group Chemical group 0.000 description 3
- 229960005222 phenazone Drugs 0.000 description 3
- ZTYRYKRGTLSPOS-UHFFFAOYSA-N 1-(2-methylpropanoyl)imidazolidin-2-one Chemical compound CC(C)C(=O)N1CCNC1=O ZTYRYKRGTLSPOS-UHFFFAOYSA-N 0.000 description 2
- RXHXQTTYDYAWIE-UHFFFAOYSA-N 1-(cyclopropanecarbonyl)imidazolidin-2-one Chemical compound C1CNC(=O)N1C(=O)C1CC1 RXHXQTTYDYAWIE-UHFFFAOYSA-N 0.000 description 2
- ZKEQZASITJLQKJ-UHFFFAOYSA-N 1-[2-(2,6-dibromoanilino)-4,5-dihydroimidazol-1-yl]ethanone Chemical compound CC(=O)N1CCN=C1NC1=C(Br)C=CC=C1Br ZKEQZASITJLQKJ-UHFFFAOYSA-N 0.000 description 2
- UFFBMTHBGFGIHF-UHFFFAOYSA-N 2,6-dimethylaniline Chemical compound CC1=CC=CC(C)=C1N UFFBMTHBGFGIHF-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- FULZLIGZKMKICU-UHFFFAOYSA-N N-phenylthiourea Chemical class NC(=S)NC1=CC=CC=C1 FULZLIGZKMKICU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
- GYJDNTLCTPWPIK-UHFFFAOYSA-N [N].N1C=NCC1 Chemical compound [N].N1C=NCC1 GYJDNTLCTPWPIK-UHFFFAOYSA-N 0.000 description 2
- 150000003855 acyl compounds Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- TXDLRXQYCIANPO-UHFFFAOYSA-N benzyl 2-oxoimidazolidine-1-carboxylate Chemical compound C1CNC(=O)N1C(=O)OCC1=CC=CC=C1 TXDLRXQYCIANPO-UHFFFAOYSA-N 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OLHBOWPZHXCUNR-UHFFFAOYSA-N n-(2,4-dichlorophenyl)-4,5-dihydro-1h-imidazol-2-amine Chemical class ClC1=CC(Cl)=CC=C1NC1=NCCN1 OLHBOWPZHXCUNR-UHFFFAOYSA-N 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- IOUMVYAZZGXMII-UHFFFAOYSA-N phenyl 2-oxoimidazolidine-1-carboxylate Chemical compound C1CNC(=O)N1C(=O)OC1=CC=CC=C1 IOUMVYAZZGXMII-UHFFFAOYSA-N 0.000 description 2
- QKFJKGMPGYROCL-UHFFFAOYSA-N phenyl isothiocyanate Chemical class S=C=NC1=CC=CC=C1 QKFJKGMPGYROCL-UHFFFAOYSA-N 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000006798 ring closing metathesis reaction Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- 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 1
- KQCMTOWTPBNWDB-UHFFFAOYSA-N 2,4-dichloroaniline Chemical compound NC1=CC=C(Cl)C=C1Cl KQCMTOWTPBNWDB-UHFFFAOYSA-N 0.000 description 1
- XIRRDAWDNHRRLB-UHFFFAOYSA-N 2,6-dibromoaniline Chemical compound NC1=C(Br)C=CC=C1Br XIRRDAWDNHRRLB-UHFFFAOYSA-N 0.000 description 1
- WFNLHDJJZSJARK-UHFFFAOYSA-N 2-chloro-6-methylaniline Chemical compound CC1=CC=CC(Cl)=C1N WFNLHDJJZSJARK-UHFFFAOYSA-N 0.000 description 1
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 description 1
- DGMOBVGABMBZSB-UHFFFAOYSA-N 2-methylpropanoyl chloride Chemical compound CC(C)C(Cl)=O DGMOBVGABMBZSB-UHFFFAOYSA-N 0.000 description 1
- DPJCXCZTLWNFOH-UHFFFAOYSA-N 2-nitroaniline Chemical compound NC1=CC=CC=C1[N+]([O-])=O DPJCXCZTLWNFOH-UHFFFAOYSA-N 0.000 description 1
- PKUPAJQAJXVUEK-UHFFFAOYSA-N 2-phenoxyacetyl chloride Chemical compound ClC(=O)COC1=CC=CC=C1 PKUPAJQAJXVUEK-UHFFFAOYSA-N 0.000 description 1
- VMZCDNSFRSVYKQ-UHFFFAOYSA-N 2-phenylacetyl chloride Chemical compound ClC(=O)CC1=CC=CC=C1 VMZCDNSFRSVYKQ-UHFFFAOYSA-N 0.000 description 1
- QRJZGVVKGFIGLI-UHFFFAOYSA-N 2-phenylguanidine Chemical class NC(=N)NC1=CC=CC=C1 QRJZGVVKGFIGLI-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019213 POCl3 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000006286 aqueous extract Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- HSDAJNMJOMSNEV-UHFFFAOYSA-N benzyl chloroformate Chemical compound ClC(=O)OCC1=CC=CC=C1 HSDAJNMJOMSNEV-UHFFFAOYSA-N 0.000 description 1
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- YHASWHZGWUONAO-UHFFFAOYSA-N butanoyl butanoate Chemical compound CCCC(=O)OC(=O)CCC YHASWHZGWUONAO-UHFFFAOYSA-N 0.000 description 1
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003874 central nervous system depressant Substances 0.000 description 1
- 239000007806 chemical reaction intermediate Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- ZOOSILUVXHVRJE-UHFFFAOYSA-N cyclopropanecarbonyl chloride Chemical compound ClC(=O)C1CC1 ZOOSILUVXHVRJE-UHFFFAOYSA-N 0.000 description 1
- 125000006255 cyclopropyl carbonyl group Chemical group [H]C1([H])C([H])([H])C1([H])C(*)=O 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- KQYZBMSXJXAYGB-UHFFFAOYSA-N ethyl 2-oxoimidazolidine-1-carboxylate Chemical compound CCOC(=O)N1CCNC1=O KQYZBMSXJXAYGB-UHFFFAOYSA-N 0.000 description 1
- RIFGWPKJUGCATF-UHFFFAOYSA-N ethyl chloroformate Chemical compound CCOC(Cl)=O RIFGWPKJUGCATF-UHFFFAOYSA-N 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002527 isonitriles Chemical class 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- PMDBCMLUDMRNFI-UHFFFAOYSA-N n-(2-chloro-6-methylphenyl)-4,5-dihydro-1h-imidazol-2-amine Chemical compound CC1=CC=CC(Cl)=C1NC1=NCCN1 PMDBCMLUDMRNFI-UHFFFAOYSA-N 0.000 description 1
- FSSCFKWZJCEOSP-UHFFFAOYSA-N n-(2-chlorophenyl)-4,5-dihydro-1h-imidazol-2-amine Chemical compound ClC1=CC=CC=C1NC1=NCCN1 FSSCFKWZJCEOSP-UHFFFAOYSA-N 0.000 description 1
- HHDJSPXOSMESDD-UHFFFAOYSA-N n-(2-methoxyphenyl)-4,5-dihydro-1h-imidazol-2-amine Chemical compound COC1=CC=CC=C1NC1=NCCN1 HHDJSPXOSMESDD-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- VMPITZXILSNTON-UHFFFAOYSA-N o-anisidine Chemical compound COC1=CC=CC=C1N VMPITZXILSNTON-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- AHWALFGBDFAJAI-UHFFFAOYSA-N phenyl carbonochloridate Chemical compound ClC(=O)OC1=CC=CC=C1 AHWALFGBDFAJAI-UHFFFAOYSA-N 0.000 description 1
- 229940117953 phenylisothiocyanate Drugs 0.000 description 1
- UYWQUFXKFGHYNT-UHFFFAOYSA-N phenylmethyl ester of formic acid Natural products O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229940075930 picrate Drugs 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-M picrate anion Chemical compound [O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-M 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000003385 ring cleavage reaction Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical class NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
- C07D233/44—Nitrogen atoms not forming part of a nitro radical
- C07D233/50—Nitrogen atoms not forming part of a nitro radical with carbocyclic radicals directly attached to said nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
- C07D233/30—Oxygen or sulfur atoms
- C07D233/32—One oxygen atom
- C07D233/38—One oxygen atom with acyl radicals or hetero atoms directly attached to ring nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2316377A DE2316377C3 (de) | 1973-04-02 | 1973-04-02 | Verfahren zur Herstellung von 2-Phenyl-amino-2-imidazolin-Derivaten und von deren Salzen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO741170L NO741170L (no) | 1974-10-03 |
| NO135751B true NO135751B (xx) | 1977-02-14 |
| NO135751C NO135751C (xx) | 1977-05-25 |
Family
ID=5876755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO741170A NO741170L (no) | 1973-04-02 | 1974-04-01 | Fremgangsmåte til fremstilling av 2-arylamino-2-imidazolinderivater samt deres salter. |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US3931216A (xx) |
| JP (1) | JPS528833B2 (xx) |
| BE (1) | BE813144A (xx) |
| BG (1) | BG27898A3 (xx) |
| CA (1) | CA1009239A (xx) |
| CH (1) | CH583708A5 (xx) |
| CS (1) | CS176134B2 (xx) |
| DD (1) | DD110495A1 (xx) |
| DE (1) | DE2316377C3 (xx) |
| DK (1) | DK145907C (xx) |
| ES (1) | ES424859A1 (xx) |
| FI (1) | FI59991C (xx) |
| FR (1) | FR2223365B1 (xx) |
| GB (1) | GB1450250A (xx) |
| HU (1) | HU169498B (xx) |
| NL (1) | NL167424C (xx) |
| NO (1) | NO741170L (xx) |
| PL (1) | PL88699B1 (xx) |
| RO (1) | RO63906A (xx) |
| SE (1) | SE405970B (xx) |
| SU (1) | SU511000A3 (xx) |
| YU (1) | YU36931B (xx) |
| ZA (2) | ZA741910B (xx) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT330769B (de) * | 1974-04-05 | 1976-07-26 | Chemie Linz Ag | Verfahren zur herstellung von 2-arylamino- 2-imidazolin-derivaten und ihren salzen |
| US4125620A (en) * | 1974-10-01 | 1978-11-14 | Boehringer Ingelheim Gmbh | 2-[(2',6'-Disubstituted-phenyl)-imino]-imidazolidines and salts thereof |
| DE2652004C3 (de) * | 1976-11-15 | 1979-09-13 | Basf Ag, 6700 Ludwigshafen | l-Acyl-2-arylamino-2-imidazoline, Verfahren zu ihrer Herstellung und ihre Verwendung |
| NL7711390A (nl) * | 1977-10-18 | 1979-04-20 | Philips Nv | Nieuwe 2-arylimino-hexahydopyrimidinen en - imi- dazolidinen, zouten en complexen daarvan, werk- wijze ter bereiding van de nieuwe verbindingen, alsmede fungicide preparaten op basis van de nieuwe verbindingen. |
| DE2811847A1 (de) * | 1978-03-17 | 1979-09-20 | Lentia Gmbh | Neue arylaminoimidazolinderivate, deren herstellung und verwendung als arzneimittel |
| US4461904A (en) * | 1981-11-20 | 1984-07-24 | Alcon Laboratories, Inc. | 2-(Trisubstituted phenylimino)-imidazolines |
| US4644007A (en) * | 1981-11-20 | 1987-02-17 | Alcon Laboratories, Inc. | 3-chloro-4-(4,5-dihydro-1H-imidazo-2-yl)-amino-5-alkylbenzoic acids, esters, salts, compositions and methods |
| US4517199A (en) * | 1981-11-20 | 1985-05-14 | Alcon Laboratories, Inc. | Method for lowering intraocular pressure using phenylimino-imidazoles |
| US4515800A (en) * | 1981-11-20 | 1985-05-07 | Icilio Cavero | Method of lowering intraocular pressure using phenylimino-imidazoles |
| HU192986B (en) | 1984-05-23 | 1987-08-28 | Egyt Gyogyszervegyeszeti Gyar | Process for production of imidasodiline derivatives |
| DE19514579A1 (de) | 1995-04-20 | 1996-10-24 | Boehringer Ingelheim Kg | Verwendung von alpha¶1¶¶L¶-Agonisten zur Behandlung der Harninkontinenz |
| US6184242B1 (en) | 1997-09-04 | 2001-02-06 | Syntex Usa (Llc) | 2-(substituted-phenyl)amino-imidazoline derivatives |
| US6417186B1 (en) | 2000-11-14 | 2002-07-09 | Syntex (U.S.A.) Llc | Substituted-phenyl ketone derivatives as IP antagonists |
| CN107690429B (zh) * | 2015-04-07 | 2022-02-25 | Ela制药有限公司 | 用于治疗和/或预防细胞或组织坏死的组合物，其特异性靶向组织蛋白酶c和/或cela1和/或cela3a和/或与其结构相关的酶 |
| RU2652125C1 (ru) * | 2017-10-02 | 2018-04-25 | Акционерное общество "Федеральный научно-производственный центр "Алтай" | Способ получения 2-(2,6-дихлорфениламино)-2-имидазолина гидрохлорида |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899426A (en) * | 1959-08-11 | Synthesis of l | ||
| US3236857A (en) * | 1961-10-09 | 1966-02-22 | Boehringer Sohn Ingelheim | 2-(phenyl-amino)-1, 3-diazacyclopentene-(2) substitution products |
| US3595961A (en) * | 1965-10-01 | 1971-07-27 | Boehringer Sohn Ingelheim | Hypotensive compositions containing 2-(2' - halo-anilino) - 1,3 -diazacyclopentenes-(2) and methods of using the same |
| DE1545628A1 (de) * | 1965-10-01 | 1970-06-25 | Boehringer Sohn Ingelheim | Verfahren zur Herstellung von blutdrucksenkend und sedativ wirksamen Derivaten des 2-(2-Halogenanilino)-1,3-diazacyclopentens-(2) |
| BE759048A (fr) * | 1969-11-17 | 1971-05-17 | Boehringer Sohn Ingelheim | Nouvelles n-aminoalcoyl-arylamino-imidazolines-(2) substituees et procedes pour les fabriquer |
-
1973
- 1973-04-02 DE DE2316377A patent/DE2316377C3/de not_active Expired
-
1974
- 1974-03-15 HU HUCE992A patent/HU169498B/hu not_active IP Right Cessation
- 1974-03-19 DK DK149874A patent/DK145907C/da not_active IP Right Cessation
- 1974-03-21 FI FI856/74A patent/FI59991C/fi active
- 1974-03-22 GB GB1293474A patent/GB1450250A/en not_active Expired
- 1974-03-25 ZA ZA00741910A patent/ZA741910B/xx unknown
- 1974-03-26 SE SE7404043A patent/SE405970B/xx not_active IP Right Cessation
- 1974-03-27 CH CH423874A patent/CH583708A5/xx not_active IP Right Cessation
- 1974-03-27 FR FR7410468A patent/FR2223365B1/fr not_active Expired
- 1974-03-29 DD DD177562A patent/DD110495A1/xx unknown
- 1974-03-29 YU YU0881/74A patent/YU36931B/xx unknown
- 1974-03-29 US US05/456,200 patent/US3931216A/en not_active Expired - Lifetime
- 1974-03-30 BG BG026251A patent/BG27898A3/xx unknown
- 1974-04-01 BE BE142717A patent/BE813144A/xx not_active IP Right Cessation
- 1974-04-01 ZA ZA00742061A patent/ZA742061B/xx unknown
- 1974-04-01 PL PL1974170011A patent/PL88699B1/pl unknown
- 1974-04-01 CS CS2337A patent/CS176134B2/cs unknown
- 1974-04-01 NO NO741170A patent/NO741170L/no unknown
- 1974-04-02 JP JP49036690A patent/JPS528833B2/ja not_active Expired
- 1974-04-02 RO RO7478275A patent/RO63906A/ro unknown
- 1974-04-02 SU SU2011368A patent/SU511000A3/ru active
- 1974-04-02 ES ES74424859A patent/ES424859A1/es not_active Expired
- 1974-04-02 NL NL7404472.A patent/NL167424C/xx not_active IP Right Cessation
- 1974-04-02 CA CA196,643A patent/CA1009239A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3931216A (en) | 1976-01-06 |
| CS176134B2 (xx) | 1977-06-30 |
| NO135751C (xx) | 1977-05-25 |
| DE2316377C3 (de) | 1978-11-02 |
| FI59991B (fi) | 1981-07-31 |
| CA1009239A (en) | 1977-04-26 |
| NL167424C (nl) | 1981-12-16 |
| DK145907B (da) | 1983-04-11 |
| JPS49127970A (xx) | 1974-12-07 |
| NL167424B (nl) | 1981-07-16 |
| NO741170L (no) | 1974-10-03 |
| SU511000A3 (ru) | 1976-04-15 |
| BG27898A3 (en) | 1980-01-15 |
| DE2316377B2 (de) | 1978-03-09 |
| AU6728674A (en) | 1975-10-02 |
| SE405970B (sv) | 1979-01-15 |
| CH583708A5 (xx) | 1977-01-14 |
| YU88174A (en) | 1982-06-18 |
| NL7404472A (xx) | 1974-10-04 |
| DD110495A1 (xx) | 1974-12-20 |
| BE813144A (fr) | 1974-10-01 |
| JPS528833B2 (xx) | 1977-03-11 |
| FR2223365B1 (xx) | 1978-02-10 |
| RO63906A (fr) | 1979-02-15 |
| DK145907C (da) | 1983-09-19 |
| DE2316377A1 (de) | 1974-10-17 |
| ZA741910B (en) | 1975-03-26 |
| FI59991C (fi) | 1981-11-10 |
| YU36931B (en) | 1984-08-31 |
| PL88699B1 (xx) | 1976-09-30 |
| GB1450250A (en) | 1976-09-22 |
| ES424859A1 (es) | 1976-06-01 |
| HU169498B (xx) | 1976-12-28 |
| FR2223365A1 (xx) | 1974-10-25 |
| ZA742061B (en) | 1975-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900006834B1 (ko) | 히단토인의 제조방법 | |
| DK1797037T3 (en) | PROCESS FOR THE PREPARATION OF 4- {4 - [({[4-chloro-3- (trifluoromethyl) phenyl] AMINO} CARBONYL) AMINO] PHENYOXY} N-methylpyridine-2-carboxamide | |
| NO135751B (xx) | ||
| NO300733B1 (no) | Fremgangsmåte for fremstilling av rene isoflavonderivater | |
| SU508199A3 (ru) | Способ получени производных морфолина | |
| NO167442B (no) | Spiralseparator. | |
| US3988345A (en) | Imidazoline derivatives and the preparation thereof | |
| NO762661L (xx) | ||
| NO162109B (no) | Fremgangsm te til fremstilling av profilert plate sholder minst to sjikt samt innretning for gjennomfoering av fremgangsm ten. | |
| NO136360B (xx) | ||
| US4129656A (en) | Thiazolidine derivatives, salidiuretic compositions and methods of effecting salidiuresis employing them | |
| NO764039L (xx) | ||
| NO138338B (no) | Fremgangsmaate til fremstilling av tresponplater med kondensasjonsharpikser som bindemiddel | |
| NO151387B (no) | Innstillingsinnretning for en elektronisk digitalindikator | |
| PL84503B1 (xx) | ||
| DD261598A5 (de) | Verfahren zur herstellung von chinazolin-dionen und pyrido-pyrimidin-dionen | |
| NO154551B (no) | Analogifremgangsmaate til fremstilling av tiazolinderivater med terapeutisk virkning. | |
| DK141749B (da) | Analogifremgangsmåde til fremstilling af pyridincarboxamidoethylbenzensulfonylurinstof-forbindelser. | |
| NO312027B1 (no) | Fremgangsmåte for fremstilling av O-(3-amino-2- hydroksypropyl)-hydroksiminsyrehalogenider | |
| EP0135304A2 (en) | Preparation of substituted benzamides | |
| DE1545810A1 (de) | Verfahren zur Herstellung von Benzolsulfonylsemicarbaziden | |
| US4118501A (en) | Thiazolidine derivatives | |
| NO784423L (no) | Fremgangsmaate for fremstilling av nye arylaminoimidazolinderivater | |
| SMITH et al. | Convenient Syntheses of 1, 2, 3, 4-Tetrahydroquinoxalines | |
| US4156735A (en) | Thiazolidine derivatives |