DK162219B - 3-chlor-4-cyanopyridaziner til syntese af hidtil ukendte 4-cyanopyridaziner - Google Patents
3-chlor-4-cyanopyridaziner til syntese af hidtil ukendte 4-cyanopyridaziner Download PDFInfo
- Publication number
- DK162219B DK162219B DK621689A DK621689A DK162219B DK 162219 B DK162219 B DK 162219B DK 621689 A DK621689 A DK 621689A DK 621689 A DK621689 A DK 621689A DK 162219 B DK162219 B DK 162219B
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- DK
- Denmark
- Prior art keywords
- ketone
- mgag
- cyanopyridazines
- group
- product
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- UHDWMBABBXSTIR-UHFFFAOYSA-N ethyl 6-oxo-3-phenyl-4,5-dihydro-1h-pyridazine-5-carboxylate Chemical compound N1C(=O)C(C(=O)OCC)CC(C=2C=CC=CC=2)=N1 UHDWMBABBXSTIR-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000031 ethylamino group Chemical group [H]C([H])([H])C([H])([H])N([H])[*] 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 208000021822 hypotensive Diseases 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 208000024714 major depressive disease Diseases 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 150000002690 malonic acid derivatives Chemical class 0.000 description 1
- 206010027175 memory impairment Diseases 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 210000001577 neostriatum Anatomy 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- DIVDFFZHCJEHGG-UHFFFAOYSA-N oxidopamine Chemical compound NCCC1=CC(O)=C(O)C=C1O DIVDFFZHCJEHGG-UHFFFAOYSA-N 0.000 description 1
- 238000007911 parenteral administration Methods 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- IMACFCSSMIZSPP-UHFFFAOYSA-N phenacyl chloride Chemical compound ClCC(=O)C1=CC=CC=C1 IMACFCSSMIZSPP-UHFFFAOYSA-N 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 208000020016 psychiatric disease Diseases 0.000 description 1
- 230000001107 psychogenic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 230000000304 vasodilatating effect Effects 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
- C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members 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
- C07D237/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a 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)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Psychiatry (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
i
DK 162219 B
Pyridazinderivater har i mange år været foreslået som lægemidler. I mange tilfælde drejer det sig om stoffer, der er aktive over for det kardiovaskulære system, og som især har en hypotensiv virkning eller karudvidende virkning. Sjældnere har der hos pyridazinderivaterne været nævnt 5 en anti-inflammatorisk og analgetisk virkning. Endelig be skriver fransk patent nr. 2.141.697 en familie af produkter med den almene formel 10 Ar-/7 y— nh-r2 \n=N ' hvor er hydrogen eller en lavere alkylgruppe, 15 Ar er en aromatisk rest, R2 er en gruppe (a2'n\g' 20 hvor n er lig med 2 eller 3, og Y og Z er lavere alkylgrupper, eller
. Y -N
25 er et heterocyklisk radikal.
Disse forbindelser er karakteristiske ved en psykotropisk virkning af psykostimulerende type.
30
Det har nu vist sig, at indføring af cyanogruppen i 4-stil-1ingen i pyridazinen betydeligt forbedrer de terapeutiske egenskaber af disse produkter sammenlignet med produkterne beskrevet for den samme familie af pyridaziner, som er usub- __ stitueret i 4-stillingen eller substitueret i samme stilling 35 med en methylgruppe, og hvoraf det mest kendte eksempel er 2
DK 162219 B
minaprin (DCI) (Ar = CgHg, R1 = CR3» R2 = |8-morphol i noethyl).
Den foreliggende opfindelse angår 3-chlor-4-cyanopyridaziner til syntese af hidtil ukendte 4-cyanopyridaziner med den alme-5 ne formel I
R2 CN
y-NH-CHp-CHo-N 0 (I) 10 N=i/ \_/ hvor R2 er hydrogen, og R^ er en C3-C7 cykloalkylgruppe; en phenylgruppe; en phenylgruppe monosubstitueret med et halogen-atom, en trifluormethylgruppe, en C^-Cg alkoxygruppe, en C^-Cg 15 alkylgruppe, en cyanogruppe eller en nitrogruppe; en phenylgruppe disubstitueret med et chloratom; en naphth-l-yl-gruppe, en naphth-2-ylgruppe eller en thien-3-ylgruppe, eller deres farmaceutisk anvendelige salte.
20 Disse forbindelser har i sammenligning med minaprin ved flere farmakologiske prøver, som viser deres psykotropiske virkning vist, at de har en effektiv middeldosis, som er sammenlignelig med eller er lavere end af minaprin, samtidig med at deres toksicitet er betydeligt lavere. Forbindelserne har således en 25 terapeutisk koefficient, der er meget bedre end den terapeutiske koefficient af minaprin.
3-chloi—4-cyanopyridazinerne ifølge opfindelsen- ti 1 syntese af ovennævnte forbindelser er ejendommelige ved, at de er forbin-30 delser med formlen IV
CN
M
Ri\ / 1 (IV)
3 5 \l-W
hvor Rj og R2 er som ovenfor defineret.
DK 162219B
3
Forbindelserne ifølge opfindelsen kan fremstilles ved, at man behandler en substitueret 4-ethoxycarbonylpyridazon (II) med ammoniak til dannelse af den tilsvarende 4-carboxamidopyrida-zon (III) og derefter behandler 4-carboxamidopyri dazonen med 5 phosphoroxychlorid til dannelse af 3-chlor-4-cyanopyridazinen (IV) som vist i følgende skema R2\_/COCLz R2x / CONH^
10 R1 \\ /=° NHyp.H^. \—\\ \=O
NH N NK
(1X1' R2\ F* r2\ /C0NH2 >=\ „ 7=\ /hcl R1 \\ / 0 POCla n-n' \_NH - > (IV) (III) I første trin anvendes en vandig koncentreret ammoniakopløs- 20 ning i overskud, og reaktionen udføres ved omgivelsernes temperatur i 10 - 15 timer.
Det andet trin udføres med et overskud af phosphoroxychlorid ved en temperatur på ca. 80°C i flere timer.
25
De terapeutisk aktive 4-cyanopyridaziner kan fremstilles af forbindelserne ifølge opfindelsen ved følgende reaktion
,n FL CN
30 \2 / R2 CN
R J VC1 h2n-ch2-ch2-n \ ]/ V / \ \nh-ch2-ch2-n o N-N7 \ / \ / N=N N-' (IV) (I)
Denne reaktion udføres ved opvarmning af de to reagenser i et passende opløsningsmiddel såsom n-butanol.
35 4
DK 162219 B
g
Udgangsprodukterae er generelt kendt. De, der ikke er kendt, kan let fremstilles, f.eks. ud fra en α-halogenketon med formlen R.-C-CH-Hal
0L
10 hvor Hal er et chlor- eller bromatom, med ethylmalonat til dannelse af det substituerede malonat: ^COOC-Ης 1K R,-C—CH-CH 3 (B) o i, ^cooc2h5
Dette fører ved behandling med hydrazin til produktet med formlen 20 *2 \ /COOC2H5
Rl—\\ \=0 (c) ' N-N ·
H
25 som ved dehydrogenering, f.eks. ved hjælp af brom i eddike-30 syre, giver det ønskede produkt II.
I de farmaceutiske midler til oral, sublingual, subkutan, in-tramuskulær, intravenøs, transdermisk eller rektal administration kan de aktive bestanddele af formlen I ovenfor admi n i -35 streres i enhedsform i blanding med traditionelle farmaceutiske bærere til pattedyr, herunder mennesket, til behandling af forskellige neurologiske og psykiatriske lidelser: Sindsli-
DK 162219 B
5 delser og adfærdsvanskeligheder, neurologiske og endogene depressioner, hukommelsesvanskeligheder, infantil hyperkinese, antisme samt sexuel insufficiens af psykogen oprindelse.
5 Blandt de egnede enhedsdosisformer kan nævnes formerne til oral indgift såsom tabletter, kapsler, pulvere, granulater og orale opløsninger eller suspensioner, og sublinguale administrationsformer samt parenterale administrationsformer, der er nyttige til subkutan administration, intramuskulær 10 eller intravenøs administration.
Por at få den ønskede terapeutiske virkning kan dosen af det aktive princip variere mellem 0,1 og 50 mg pr. kg legemsvægt pr. dag.
15
Hver enhedsdosis kan indeholde fra 1 til 500 mg aktiv bestanddel i kombination med en passende farmaceutisk bærer.
Den kan administreres 1-4 gange om dagen.
De følgende eksempler illustrerer opfindelsen, FREMSTILLING 1: a) Ethylphenacylmalonat.
25
Man opvarmer under tilbagesvaling gennem en nat 240,25 g ethylmalonat, 138 g kaliumcarbonat, 5 g kaliumjodid og 154 g phenacylchlorid i 2 liter vandfri acetone.
Efter at have filtreret mineralsaltene inddamper man filtra-30 tet til tørhed, og derefter destillerer man under reduceret tryk det overskydende ethylmalonat (tryk 0,5 mbar, temperatur ca. 60°C). Destillationsresten kromatograferes på en søjle af silicagel under anvendelse af en blanding af cyklohexan og ethylacetat som eluant (9/1). Den forventede ketoester 35 fremkommer som en rød olie. Udbytte 80,3%.
b) 4-ethoxycarbonyl-6~phenyl-4,5-dihydro-2H-3-pyridazinon.
6 .
DK 162219 B
Man opløser 40,5 g af det ovenfor fremstillede produkt i 70 ml absolut ethanol, og til reaktionsmediet sættes dråbevis under omrøring ved en temperatur på ca. 0°C 7,25 'g hydrazinhydrat. Når reaktionsmediet har nået omgivelsernes tempe-5 ratur, omrøres i 24 timer, og derefter filtreres det fremkomne beige filtrat, svarende til den forventede pyridazinon.
Filtratet behandles med 3,62 g hydrazinhydrat. Efter 24 10 timers omrøring kan en supplerende mængde pyridazinon filtreres. Samme operation gentages endnu en gang på filtratet.
Efter rensning ved passage gennem en søjle af silicagel 15 under anvendelse som eluant af en blanding af cyklohexan og ethylacetat (rumfang/rumfangr 1/1) får man den forventede forbindelse i et udbytte på 37%.
c) 4-ethoxycarbonyl-6-phenyl-2H-3-pyridaz inon.
20 (II) ^ = CgH5, R2 = H.
Man opløser 9 g af den under b) fremstillede forbindelse i 200 ml eddikesyre og tilsætter derefter 11,18 g brom til 25 opløsningen under omrøring. Der sker en affarvning af mediet efter 5 minutter. Efter 2 timer ved omgivelsernes temperatur og under omrøring hælder man i 200 ml vand, og derefter ekstraherer man i methylenchlorid og inddamper den organiske fase til tørhed.
30
Remanensen genoptages 3 gange i cyklohexan. Det fremkomne beige pulver kromatograferes på en søjle af silicagel under anvendelse som eluant af en blanding af cyklohexan og ethyl= acetat (rumfang/rumfang: 1/1). Den forventede pyridazinon fås i et udbytte på 51%. Smeltepunkt 150°C.
3 5 7
DK 162219 B
FREMSTILLINGER 2-8.
Ved at gå frem som beskrevet i fremstilling 1 og ved at gå 5 ud fra parachlorphenylchlormethylketon, parafluorphenylchlormethylketon, α-naphthylbrommethylketon, 10 cyklohexylchlormethylketon, 2,4-dichlorphenylchlormethylketon, 3-indolylchlormethylketon eller 3-thienylchlormethylketon 15 ved reaktion med ethylmalonat, kondensation med hydratiseret hydrazin og dehydrogenering med brom i eddikesyre fås de produkter (II), der er beskrevet i tabel 1.
TABEL 1.
20 --------
Forbindelse II
Frem- --------------------------- stilling R2
2 H
25 \_/
3 H
30 4 O—
O
5 / \—. H
35 '- ^C1
6 Cl-J \_ H
W
8
DK 16 2 219 B
y\_y
- i '1 li H
s 7 vw H
5 H
• O' J
10 FREMSTILLINGER 9-18.
Ved at gå frem som beskrevet i fremstilling 1 og ved at gå ~5 ud fra 4-methoxyphenylchlormethylketon, 4-hydroxyphenylchlormethylketon, 3,4-dimethoxyphenylchlormethylketon, Π 4-nitrophenylchlormethylketon, 3-methylphenylchlormethylketon, cyklopentylchlormethylketon, 3-trifluormethyIphenylchlormethylketon, 1-phenylchlorethylketon, 25 α-methylchlorbenzylketon eller a-chlorphenylacetaldehyd, ved indvirkning af ethylmalonat, kondensation med hydrazinhydrat og dehydrogenering med brom i eddikesyre fås de pro-duktar, der er beskrevet i tabel 2.
35
9 DK 162219 B
TABEL 2.
Forbindelse II
Frem- -------------------------- stilling R2 5
9 H3C0^^~y. H
10 0H-Q— H
X 0 H3C0
11 K3G0H
W
15 12 02N_0^ H
13 <P>~ H
CH3 20 14 Q-
15 H
25 CF3 16 Gr- CH3 30 17 C« <Q>- 18 h 35
10 DK 162219 B
FREMSTILLINGER 19 - 36.
På samme måde, men ved at gå ud fra 5 4-methylthiophenylchlormethylketon, 4-raethylsulfinylphenylchlormethylketon, 4-methy1sulfonylpheny1chlormethylketon, 2-naphthylchlormethylketon, :o 2-thienylchlormethylketon, 2-chlorphenylchlormethylketon, 3- chlorphenylchlormethylketon, 3.4- dichlorphenylchlormethylketon, cyklopropylchlormethylketon, 15 4-methylphenylchlormethylketon, 2-methylphenylchlormethylketon, 4- trifluormethylphenylchlormethylketon, cyklooctylchlormethylketon, 4-cyanophenylchlormethylketon, 2 G 4-sulfamoylphenylchlormethylketon, 3.4- dihydroxyphenylchlormethylketon, 4-acetoxyphenylchlormethylketon eller a-bromdesoxybenzoin 25 fås de produkter, der er nævnt i tabel 3.
TABEL 3.
Forbindelse II
3 C Frem- -------------------------- stilling R^ R2
19 CH3S “Q- B
35 20 CK3S0„^ h \=/ 11
DK 162219 B
CH3S02y~V
21 \=/ H
5 22 H
23 I) L H
\S s 10 cy-
24 \=/ H
^C1
25 H
15 cr 26 Cl ^—· g 20 27 H H3C^H\
28 \— / H
2, Q- H
^CH3 „: » “O- , O .
3r ,, NcJlu.
32 W H
33 H2NS02^T\- H
DK 162219 B
12
34 80 “O- H
HC)'^ 5 __.
CH3C00^fV-
35 \=/ H
O
λ r\ EKSEMPEL 1.
15 6-phenyl-3-oxo-2H-4-carboxamid-pyridazin.
(III) ^ = CgHg, R2 * H.
20 Til 40 ml af en koncentreret ammoniakopløsning sættes 2 g af det i fremstilling 1 fremkomne produkt, og man henstiller under omrøring natten over ved omgivelsernes temperatur.
Man lufttørrer det faste stof og tørrer til dannelse af det forventede produkt. Udbytte 86%, smeltepunkt højere end 25 300°C.
EKSEMPLER 2-17.
3 0 Ved at gå frem som i eksempel 1, men ved at gå ud fra de tilsvarende ethoxycarbonyIderivater fås de i tabel 4 beskrevne 0 forbindelser III.
35
13 DK 162219 B
TABEL 4.
i Forbindelse III
Eksempel R2
2 H
3 ?—yZ/— H
o-
O
5 o 20 Cl
6 a-fC- H
25 7 H
u~
30 H3C0y*\— H
9 W
Cl 10 C1>\_ 8 35 14
DK 162219B
O
11 w/ H
\) 5 '—\ 12 02N O- "
10 13 H3C"0~ H
14 F3c~^Zy~ H
15 15 H
CF3 o- -o' 20
17 NC—(IV H
25 EKSEMPEL 18.
3-chlor-4-cyano-6-phenylpyridaz in.
30 (IV) Rx = C6H5/ R2 = H.
Man opløser 1,5 g af det i eksempel 1 fremstillede produkt i 20 ml phosphoroxychlorid og opvarmer derefter til 80°C i 5 timer. Man hælder blandingen i 50 ml vand. Der fremkom— mer et bundfald, som lufttørres og tørres. Udbytte 58,3%, smeltepunkt 2 0 6°C.
3r
DK 162219 B
15 EKSEMPLER 19 - 34.
Ved at gå frem som i eksempel 18, men ved at gå ud fra de tilsvarende amider af formlen III, fås de i tabel 5 beskrev-5 ne 3-chlor-4-cyanopyridaziner af formlen IV.
TABEL 5.
„ _ Forbindelse IV
j. u — ______
Eksempel Smeltepunkt eller ±y \—/ H Kromatografi
20 — H Smp’ 170°C
2^ H Kromatografi 20 Y_/ 22 — H Rf 0,9 (hexan-ethylacetat) 25 23
23 XssJ H Smp. 152-154°C
^-/01 ?f °'4 24 H (hexan-ethylacetat \s=/ 2/1) 3 0
25 H Smp. 152°C
35 26 H3C°^3— H Smp* 196-198°C
Cl
27 H SmP* 204“206°C
16
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TABEL 5 (forts.)
28 H Snip. 231-232°C
5 Q
Rf 0,8 ^ °^Ν·\V—* H (hexan-ethylacetat ^ 2/U)
10 30 H3C.^^— H Smp. 191°C
r— Rf °'7 F3C —. h (hexan-ethylacetat 1/1) 15 32 <ζ_y>- H Rf 0,8 r?2 (hexan-ethylacetat 1/1)
„ 11 O- -O
NC Rf 0/9 _/"* H (hexan-ethylacetat 1/1) 25 EKSEMPEL 35.
3Q (2-(morpholino-3-ethylamin).4-cyano-6-phenylpyridazin, di= hydrochlorid (SR 95 191).
(I) Rx = C6H5, R2 = H, 35 17
DK 162219 B
Man opløser 7,3 g af den chlorerede forbindelse fra eksempel 18 i 60 ml normal butanol og tilsætter 8 g N-(2-aminoethyl)-morpholin. Man opvarmer under tilbagesvaling i 3 timer, og derefter hældes blandingen i 1000 ml vand. Man ekstraherer den organiske fase med ether, og derefter ekstraherer man 5 etheropløsningen med en opløsning af IN svovlsyre. Man fraskiller den vandige fase, gør alkalisk med natriumhydroxid og ekstraherer med ether. Man tørrer etherfasen på magnium= sulfat og afdamper derefter opløsningsmidlet til tørhed under vakuum. Man får et gult fast stof. Udbytte 81,3%, 10 smeltepunkt 138°C.
Man opløser 6,8 g af det således fremkomne produkt i 100 ml tør methanol og gennembobler en strøm af hydrochloridgas.
Man afdamper opløsningsmidlet til tørhed i vakuum og genopta-15 ger remanensen i vandfri ether.
Der dannes et bundfald af dihydrochloridet af 3-(2-morpholino= ethylamino)-4-cyano-6-phenylpyridazin, som omkrystalliseres 2 gange af isopropanol. Smeltepunkt 144°C (under dekompone-20 ring) .
Ud fra basen kan man ligeledes fremstille følgende salte af samme forbindelse: 25 Monocitrat smp. 181°C (vandig ethanol),
Diglutamat smp. over 260°C (vandig ethanol),,
Monohydrochlorid smp. 230°C,
Monofumarat smp. 204°C (acetone),
Monomaleat smp. 168°C (acetone).
30 EKSEMPLER 36 - 51.
Ved at gå frem som ovenfor beskrevet får man ved reaktion af 35 18
DK 162219 B
det tilsvarende chlorerede derivat af formlen IV med N-(2-aminoethyl)morpholin de forbindelser (I) som er beskrevet i tabel 6.
TABEL 6.
5
R~ CN
y=\ R1 NH CH2CH2 ** 9 10 N"N '-/
Kode- Salt eller base,
Eksem- nummer ___ or peJ· SR ______1__________2____^oplø sn±n<2Sm±^d;el)_
36 95276 A H
'==/ (dekomponering)
37 95306 F —(Q/— H Base, 208°C
20 r Dihydrochlorid,
H 130-140°C
(dekomponering, isopropanol) 25 _. Dihydrochlorid, 39 95331 A {Jh- H “^ponering
Fumarat (2/3) , 40 42632 A \)_ H ^céton^med 0,5 30 H20) ci . s Dihydrochlorid,
41 95324 A H 228°C
\—/ (isopropanol) (forts.) 35 19
DK 162219 B
TABEL 6 (forts.) [ Dihydrochlorid,
42 95274 A H 170°C
(methanol) xt3coV^V Fumarat (1/1),
43 42595 A \2s H 240-242°C
(acetone)
Cl 10 \ ri \ Maleat (1/1)
44 42638 A —\° / H 240-242°C
(acetone) P % Base,
45 42692 W·7 H 184-186°C
15 / ^ (isopropanol)
Dihydrochlorid,
46 95323 A 02N /qV. H 260°C
\_{ (dekomponering 1 35 H3C_ynV Base' o
47 42639 H 150-151°C
(isopropanol)
Dihydrochlorid, 48 95330 A F3C‘—H 278°C' base,
159°C
49 95328 cn>~ H
___ Monohydrochlorid,
50 95071 A <0V~ (OV 210°C
\_/ \_/ (dekomponering) 30 /""\ Base,
51 95329 NC'—\0)—- H 205°C
(methanol 20
DK 162219B
EKSEMPEL '52 Galenisk præparat.
5 Som eksempel på et galenisk præparat kan vises følgende kapsel indeholdende:
Aktivt princip 50 mgf
Aerosil 0,5 mg, 10 Magniumstearat 1,5 mg,
Stivelse STA RX 1500 48 mg.
100 mg.
15
Den psykotropiske virkning af en forbindelse, med formlen I, nemlig forbindelsen SR 95191 (eksempel 37), er blevet målt ved 3 farmakologiske prøver sammenlignet med minaprin og imipramin, som er meget anvendte antidepres-sorer. Ligeledes er toksiciteten af produktet sammenlignet med toksiciteten af sammenligningsprodukterne.
Desperations-adfærd.
Denne prøve er udført med hunmus CDI (Charles River) med en 25 vægt på 18 - 23 g ved den af Porsolt beskrevne fremgangsmåde (Archives Internationales de Pharmacodynamie 1977, 327-336).
Princippet i denne prøve er følgende: Når en mus anbringes i en snæver beholder med vand, kæmper den imod, men efter 30 2-4 minutter bliver den ubevægelig og flyder pa bugen med krummet ryg og bagpoterne trukket ind under kroppen, og den gør kun nogle nødvendige bevægelser for at holde hovedet over vandet. Det er denne reaktion, der kaldes desperation.
35
DK 162219 B
21
Visse psykotroper, især antidepressorerne, forlænger den tid, hvori musen kæmper.
Der blev valgt følgende fremgangsmåde: 5 Produkterne, der skulle undersøges, blev administreres i.p.
1 time før prøven. Til prøven anbringes dyrene i en snæver beholder (10 x 10 x 10 can) fyldt med vand til en højde af 6 cm og med en temperatur på 24 - 2 C. Dyrene overlades i 6 minutter i vandet, og man måler den tid, hvor dyret for-10 bliver ubevægeligt mellem det 2. og det 6.minut. Jo kortere denne tid er, des mere aktivt er stoffet.
Hvert stof er blevet undersøgt på grupper på 10 mus. Resultaterne er gennemsnit af mindst 2 forsøg.
15
Antagonisme mod ptosis induceret med reserpin.
Denne prøve, der er beskrevet af Gouret (Journal de Pharma-cologie, Paris 1973, 4 (1), 105-128) er blevet udført på hun-20 mus CDI (Charles River) med en vægt på 20 - 1 g. Reserpinen medfører en ptosis 1 time efter den intravenøse administration. Visse antidepressorer modvirker denne ptosis.
Der blev valgt følgende fremgangsmåde: 25
Stofferne, der skulle undersøges, blev administreret i.p. Reserpinen administreres samtidig ad intravenøs vej i en dosis på 2' mg/kg. 1 time efter administrationen af reserpin noteres det antal dyr, der ikke udviser ptosis.
30
Denne prøve er udført på grupper på 10 mus, og resultaterne er udtrykt i procent dyr, der ikke udviser ptosis og er gennemsnittet af mindst 2 forsøg.
35
DK 162219B
22 '
Drejnings-adfærd.
Denne prøve er beskrevet af Protais og kolleger i Journal de Pharraacologie 1976, 7,251-255.
5 Hunmus, Charles River CDI, med en vægt på 20 - 24 g får først påført en ensidig læsion af striatum ved stereotak§isk injektion af 6-hydroxydopamin i en mængde af 8 yug pr. dyr.
1 uge efter denne operation administreres produktet i.p. til grupper på 7 mus. Antallet af drejninger bedømmes i 10 2 minutter en time efter administrationen af produktet.
Ipsilaterale drejninger i forhold til læsionen betragtes som positivt, og kontralaterale betragtes som negativt. Den algebraiske sum af drejninger for en gruppe behandlede dyr sammenlignes med antal drejninger for en gruppe kontroldyr, der 15 kun har fået bæreren (fysiologisk serum).
Akut toksicitet.
Produkterne, der skulle undersøges, blev administreret ad 20 intraperitoneal vej i voksende doser til grupper på 10 mus.
Den af de undersøgte produkter fremkaldte dødelighed noteredes i 24 timer efter administrationen af produktet.
Ud fra de opnåede resultater bestemmer man for hvert af de 25 undersøgte produkter den dødelige dosis 50, d.v.s. den dosis, som fremkalder død for 50% af de undersøgte dyr.
De fremkomne resultater er vist i tabel 8.
30 35 23
DK 162219 B
TABEL 8.
Ptosis Toksi- med citet, reserpin, Desperations-
Forbin- i.p., i*P·/ adfærd, Drejnings-adfærd, 5 delse LD5Q DE5Q i.p. i.p.
SR 95191 250 mgAg 3,9 mgAg 5 mgAg: 26%++ 0,1 mgAg: 60%++ 2 mgAg·* 107%++
Minaprin 63 mgAg 5 mgAg 5 mgAg: 31%++ 0,125 mgAg: 53%++ 2 mgAcr: 82%++ 10
Imipramin 89 mgAg 2,4 mgAg 10 mgAg: 38%++ 3 mgAg: 6 n.s.
++: p < 0,1, Student1 s prøve.
n.s.: ikke signifikant.
15 På samme måde har man bestemt den psykotrope aktivitet af 2 andre forbindelser med formlen I, nemlig forbindelserne SR 95274 A (eksempel 42) og SR 95294 A (eksempel 38) ved 20 2 af de ovenfor beskrevne farmakologiske prøver: Drejnings- adfærd og antagonisme mod ptosis induceret med reserpin. De fremkomne resultater er vist i nedenstående tabel 9 sammen med toksiciteten af disse produkter administreret ad intra-peritoneal vej under de ovenfor viste betingelser.
25 TABEL 9.
Antagonisme
Toksicitet, mod ptosis af Drejnings-adfærd Produkt i.p. reserpin, i.p. hos mus, i.p.
30 SR 95274 A DL-n > 300 mgAg DE,-n = 2,6 mgAg 0,5 mgAg: 60% x
3U DU 2 mgAg: 82% X
SR 95294 A DE™ = 10 mgAg 0,5 mgAg: 74% x 2 mgAg: 92% x
Minaprin DL^q = 63 mgAg = 5 mgAg 2 mgAg: 82% x x: p < 0,1, Student's prøve.
35
Claims (1)
- 20 M, 1 \ / <iv) \-N' hvor Ri og R2 er som ovenfor defineret. 25 1 35
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8301366 | 1983-01-28 | ||
| FR8301366A FR2540115B1 (fr) | 1983-01-28 | 1983-01-28 | Derive de la pyridazine ayant une action psychotrope, son mode de preparation et les medicaments en contenant |
| FR8318433 | 1983-11-18 | ||
| FR8318433A FR2555178B1 (fr) | 1983-11-18 | 1983-11-18 | Derives cyanes de la pyridazine ayant une action psychotrope, leur mode de preparation et les medicaments en contenant |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK621689A DK621689A (da) | 1989-12-08 |
| DK621689D0 DK621689D0 (da) | 1989-12-08 |
| DK162219B true DK162219B (da) | 1991-09-30 |
| DK162219C DK162219C (da) | 1992-03-02 |
Family
ID=26223263
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK025984A DK159969C (da) | 1983-01-28 | 1984-01-20 | Pyridazinderivater, der har psykotropisk virkning, og laegemidler indeholdende dem |
| DK621589A DK162218C (da) | 1983-01-28 | 1989-12-08 | 3-oxo-4-carboxamidopyridaziner til syntese af hidtil ukendte 4-cyano-pyridaziner |
| DK621689A DK162219C (da) | 1983-01-28 | 1989-12-08 | 3-chlor-4-cyanopyridaziner til syntese af hidtil ukendte 4-cyanopyridaziner |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK025984A DK159969C (da) | 1983-01-28 | 1984-01-20 | Pyridazinderivater, der har psykotropisk virkning, og laegemidler indeholdende dem |
| DK621589A DK162218C (da) | 1983-01-28 | 1989-12-08 | 3-oxo-4-carboxamidopyridaziner til syntese af hidtil ukendte 4-cyano-pyridaziner |
Country Status (25)
| Country | Link |
|---|---|
| US (2) | US4565814A (da) |
| EP (1) | EP0116494B1 (da) |
| KR (1) | KR910000639B1 (da) |
| AU (1) | AU566352B2 (da) |
| CA (1) | CA1218655A (da) |
| CS (1) | CS274405B2 (da) |
| DD (1) | DD215542A5 (da) |
| DE (1) | DE3469026D1 (da) |
| DK (3) | DK159969C (da) |
| ES (1) | ES529108A0 (da) |
| FI (1) | FI77453C (da) |
| GR (1) | GR81682B (da) |
| HU (1) | HU192975B (da) |
| IE (1) | IE56750B1 (da) |
| IL (1) | IL70755A (da) |
| MA (1) | MA20019A1 (da) |
| NO (1) | NO840329L (da) |
| NZ (1) | NZ206957A (da) |
| OA (1) | OA07645A (da) |
| PH (1) | PH21476A (da) |
| PL (1) | PL143994B1 (da) |
| PT (1) | PT77994B (da) |
| SG (1) | SG9389G (da) |
| SU (1) | SU1274623A3 (da) |
| YU (1) | YU14184A (da) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2540113A1 (fr) * | 1983-01-27 | 1984-08-03 | Sanofi Sa | Acides derives de la pyridazine actifs sur le systeme nerveux central |
| DE3672536D1 (de) * | 1985-06-14 | 1990-08-16 | Lilly Co Eli | Fungizide pyridazine. |
| US5106973A (en) * | 1987-11-23 | 1992-04-21 | Janssen Pharmaceutica N.V. | Pyridzainamine derivatives |
| TR200100574T2 (tr) * | 1998-08-20 | 2001-07-23 | Toyama Chemical Co., Ltd. | Nitrojenöz heteroksiklik karboksamid türevlerini içeren antiviral ajanlar |
| IL143929A0 (en) | 1999-01-22 | 2002-04-21 | Elan Pharm Inc | Acyl derivatives which treat vla-4 related disorders |
| TW200307671A (en) | 2002-05-24 | 2003-12-16 | Elan Pharm Inc | Heteroaryl compounds which inhibit leukocyte adhesion mediated by α 4 integrins |
| TWI281470B (en) | 2002-05-24 | 2007-05-21 | Elan Pharm Inc | Heterocyclic compounds which inhibit leukocyte adhesion mediated by alpha4 integrins |
| US8338591B2 (en) * | 2004-05-08 | 2012-12-25 | Novartis International Pharmaceutical Ltd. | 3-aryl-5,6-disubstituted pyridazines |
| EP1741709A1 (en) * | 2005-06-28 | 2007-01-10 | Sanofi-Aventis Deutschland GmbH | Heteroaryl-substituted amides comprising a saturated linker group, and their use as pharmaceuticals |
| ZA200803016B (en) | 2005-09-29 | 2009-10-28 | Elan Pharmaceuticals Inc Wyeth | Carbamate compounds which inhibit leukocyte adhesion mediated by VLA-4 |
| WO2007041270A1 (en) | 2005-09-29 | 2007-04-12 | Elan Pharmaceuticals, Inc. | Pyrimidinyl amide compounds which inhibit leukocyte adhesion mediated by vla-4 |
| KR20080100271A (ko) | 2006-02-27 | 2008-11-14 | 엘란 파마슈티칼스, 인크. | Vla-4에 의해 매개되는 백혈구 부착을 억제하는 피리미디닐 술폰아미드 화합물 |
| MX2011011326A (es) | 2009-04-27 | 2012-02-13 | Elan Pharm Inc | Antagonistas de piridinona de las integrinas alfa-4. |
| AR081331A1 (es) | 2010-04-23 | 2012-08-08 | Cytokinetics Inc | Amino- pirimidinas composiciones de las mismas y metodos para el uso de los mismos |
| WO2011133920A1 (en) | 2010-04-23 | 2011-10-27 | Cytokinetics, Inc. | Certain amino-pyridines and amino-triazines, compositions thereof, and methods for their use |
| AR081626A1 (es) | 2010-04-23 | 2012-10-10 | Cytokinetics Inc | Compuestos amino-piridazinicos, composiciones farmaceuticas que los contienen y uso de los mismos para tratar trastornos musculares cardiacos y esqueleticos |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345880A (en) * | 1971-06-18 | 1974-02-06 | Cepbepe | Pyridazine derivatives |
| FR2510998B1 (fr) * | 1981-08-07 | 1986-01-10 | Sanofi Sa | Nouveaux derives amines de la pyridazine, leur procede de preparation et les medicaments, a action desinhibitrice, qui en comportent |
| FR2510997A1 (fr) * | 1981-08-10 | 1983-02-11 | Sanofi Sa | Nouveaux derives de la methyl-4 phenyl-6 pyridazine, procede pour leur preparation et medicaments actifs sur le systeme nerveux central en contenant |
| FR2539739B1 (fr) * | 1983-01-24 | 1985-11-22 | Sanofi Sa | Nouveaux derives de la naphtyl pyridazine actifs sur le systeme nerveux central, procede de preparation de ces derives et medicaments en contenant |
-
1984
- 1984-01-18 US US06/571,696 patent/US4565814A/en not_active Expired - Fee Related
- 1984-01-18 CA CA000445482A patent/CA1218655A/en not_active Expired
- 1984-01-20 PH PH30136A patent/PH21476A/en unknown
- 1984-01-20 DK DK025984A patent/DK159969C/da not_active IP Right Cessation
- 1984-01-23 GR GR73586A patent/GR81682B/el unknown
- 1984-01-23 IL IL70755A patent/IL70755A/xx unknown
- 1984-01-23 PT PT77994A patent/PT77994B/pt not_active IP Right Cessation
- 1984-01-23 IE IE148/84A patent/IE56750B1/en not_active IP Right Cessation
- 1984-01-24 ES ES529108A patent/ES529108A0/es active Granted
- 1984-01-24 AU AU23728/84A patent/AU566352B2/en not_active Ceased
- 1984-01-25 DE DE8484400157T patent/DE3469026D1/de not_active Expired
- 1984-01-25 EP EP84400157A patent/EP0116494B1/fr not_active Expired
- 1984-01-26 MA MA20240A patent/MA20019A1/fr unknown
- 1984-01-26 OA OA58217A patent/OA07645A/xx unknown
- 1984-01-27 HU HU84378A patent/HU192975B/hu not_active IP Right Cessation
- 1984-01-27 DD DD84259679A patent/DD215542A5/de not_active IP Right Cessation
- 1984-01-27 SU SU843697653A patent/SU1274623A3/ru active
- 1984-01-27 CS CS61484A patent/CS274405B2/cs unknown
- 1984-01-27 YU YU00141/84A patent/YU14184A/xx unknown
- 1984-01-27 FI FI840349A patent/FI77453C/fi not_active IP Right Cessation
- 1984-01-27 NO NO840329A patent/NO840329L/no unknown
- 1984-01-27 PL PL1984245932A patent/PL143994B1/pl unknown
- 1984-01-27 NZ NZ206957A patent/NZ206957A/en unknown
- 1984-01-28 KR KR1019840000387A patent/KR910000639B1/ko not_active Expired
-
1985
- 1985-05-20 US US06/735,580 patent/US4631280A/en not_active Expired - Fee Related
-
1989
- 1989-02-14 SG SG93/89A patent/SG9389G/en unknown
- 1989-12-08 DK DK621589A patent/DK162218C/da not_active IP Right Cessation
- 1989-12-08 DK DK621689A patent/DK162219C/da not_active IP Right Cessation
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| PBP | Patent lapsed |