DK146542B - Analogifremgangsmaade til fremstilling af daunosaminylanthracyclioner - Google Patents
Analogifremgangsmaade til fremstilling af daunosaminylanthracyclioner Download PDFInfo
- Publication number
- DK146542B DK146542B DK513076AA DK513076A DK146542B DK 146542 B DK146542 B DK 146542B DK 513076A A DK513076A A DK 513076AA DK 513076 A DK513076 A DK 513076A DK 146542 B DK146542 B DK 146542B
- Authority
- DK
- Denmark
- Prior art keywords
- adriamycin
- demethoxy
- preparation
- day
- hydrochloride
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 9
- 238000002360 preparation method Methods 0.000 title description 3
- AOJJSUZBOXZQNB-TZSSRYMLSA-N Doxorubicin Chemical compound O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-TZSSRYMLSA-N 0.000 description 34
- 229940009456 adriamycin Drugs 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 239000000460 chlorine Chemical group 0.000 description 6
- XVXGYZFARCOVHS-BINOZUKVSA-N (7s,9s)-7-[(2r,4s,5s,6s)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-8,10-dihydro-7h-tetracene-5,12-dione Chemical compound C1[C@H](N)[C@H](O)[C@H](C)O[C@H]1O[C@@H]1C2=C(O)C(C(=O)C3=CC=CC=C3C3=O)=C3C(O)=C2C[C@@](O)(C(=O)CO)C1 XVXGYZFARCOVHS-BINOZUKVSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 241000699670 Mus sp. Species 0.000 description 5
- 208000032839 leukemia Diseases 0.000 description 5
- 206010003445 Ascites Diseases 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000007912 intraperitoneal administration Methods 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
- 230000000259 anti-tumor effect Effects 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 229910052801 chlorine Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XDXDZDZNSLXDNA-TZNDIEGXSA-N Idarubicin Chemical compound C1[C@H](N)[C@H](O)[C@H](C)O[C@H]1O[C@@H]1C2=C(O)C(C(=O)C3=CC=CC=C3C3=O)=C3C(O)=C2C[C@@](O)(C(C)=O)C1 XDXDZDZNSLXDNA-TZNDIEGXSA-N 0.000 description 1
- XDXDZDZNSLXDNA-UHFFFAOYSA-N Idarubicin Natural products C1C(N)C(O)C(C)OC1OC1C2=C(O)C(C(=O)C3=CC=CC=C3C3=O)=C3C(O)=C2CC(O)(C(C)=O)C1 XDXDZDZNSLXDNA-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010039491 Sarcoma Diseases 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 229960004679 doxorubicin Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002431 hydrogen Chemical group 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 229960000908 idarubicin Drugs 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/20—Carbocyclic rings
- C07H15/24—Condensed ring systems having three or more rings
- C07H15/252—Naphthacene radicals, e.g. daunomycins, adriamycins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
Description
i 146542 •Den foreliggende opfindelse angår en analogif remgangsmåde til fremstilling af daunosami nylanthracyclinoner, som har anti-tumorvirkning0 I beskrivelsen til belgisk patent nr„ 837 756 er fremstillingen af sådanne med daunomycin beslægtede anthra-cyclinoner med den almene formel I beskrevet:
R2 0 OH
R^ 0 OH J
NH2 hvori 1 2 R er hydrogen og R betyder methyl eller chlor, eller 2 1 R er hydrogen, og R betyder hydrogen, methyl eller chlor, og R^ betyder hydrogen.
Den foreliggende opfindelse angår en analogifremgangsmåde til fremstilling af hidtil ukendte forbindelser med 5 den almene formel X, hvori R betyder 0H„
Disse forbindelser er beslægtede med adriamycin og fremstilles efter fremgangsmåden ifølge opfindelsen , der er ejendommelig ved bromering af forbin- 1 2 delserne med formlen I, hvori R og R har 2 146542 de ovenfor anførte betydninger og R^ er H, i lighed med den i beskrivelsen til britisk patent 1 217 133 omhandlede fremgangsmåde, hvorved man opnår de tilsvarende 14-bromforbindelser X (R^ = Br ), der omsættes med natriumformiat for at opnå forbindelserne I, hvori 5 R betyder OH, hvilke isoleres som hydrochlorid.
De omhandlede forbindelser viser sig tydeligt aktive ved hæmning af ondartet eller transformeret cellevækst; især kan de udmærket sammenlignes med det kendte anti-kræft-middel adriaraycin»
Adriamycin er et særligt handelsnavn og vil her blive anvendt som betegnelse for doxorubicin eller 14-hydro-xydaunorubicin0
De følgende eksempler skal belyse fremgangsmåden ifølge opfindelsen nærmere»
Eksempel 1. 4-demethoxyadriamycin (I, R1 = R2 — Ef R5 = OH)
Til 1 g (1,87 mmol) 4-demethoxydaunomycinhydrochlorid opløst i 14 ml methanol og 38 ml dioxan sættes 1 ml ethylorthoformiato Opløsningen anbringes ved 10^C, og der tilsættes på en gang 1,96 mmol brom i 3 ml chloroform og 1,17 mmol 2,5 N hydrogenchlorid i methanol» Efter 1 time hældes opløsningen i en blanding af 100 ml petroleumsether og 200 ml diethylether. Bundfaldet opløses i 150 ml dioxan og 150 ml 0,25 N hydrogenbromid. Opløsningen henstår ved 25° C i 16 timer, og der tilsættes en opløsning af 11 g natriumformiat i 110 ml vand» Den opnåede røde opløsning henstår ved 25° C i 24 timer« Opløsningen inddampes i vacuum. Remanensen optages i 200 ml chloroform/methanol (volumenforhold 13/6). Opløsningen 146542 3 vaskes med en 5% vandig natriumbicarbonatopløsning og derefter med vand. Ved afdampning af chloroformen fremkommer der en remanens, hvortil der sættes en ækvivalent mængde hydrogenchlorido Efter filtrering opnås 0,65 g 4-demethoxyadriamycin, smpc 186-188°C, som hydrochlorid.
Eksempel 20 4-demethoxy-2,3-dimethyladriamycin 2 1 5 (If s = H; R = CH3; R = OH)
Fremgangsmåde som i eksempel 1, idet der anvendes 1 g 2 5 4-demethoxy-2,3-dimethyldaunomycin (I; R = R = H; R = CH }o Derved opnås 0,55 g 4-demethoxy-2,3-dimethyl- . 2 1 5 adriamycin (I ; R = H; R = OH^; R = OH) som hydro— chlorid, smp» 205-207°C„
Eksempel 3» 4-demethoxy-l,4-dimethyladriamycin 12 5 (I; R = H; R = CH3; R = OH)
Fremgangsmåde som i eksempel 1 under anvendelse af 1,5 g 1 2 4-demethoxy-l,4-dimethyldaunomycin (I; R = H; R = 5 CH3; R = H)o Derved opnas 0,62 g 4-demethoxy-l,4-dimethyladriamycin som hydrochlorid, smp0 171-174°C0
Eksempel 40 4-demethoxy-l,4-dichloradriamycin (I; R1 = H; R2 = Cl; R5 = OH)
Fremgangsmåde som i eksempel 1 under anvendelse af 1 g 1 2 4-demethoxy-l,4-dichlordaunomycin (I; R = Hj R = 5
Cl; R = H)o Derved opnås 0,6 g 4-demethoxy-l,4-dichlor-adriamycin som hydrochlorid, smp„ 215-218°C0
Eksempel 50 4-demethoxy-2,3-dichloradriamycin (I; R2 =H ; R1 = Cl; R5 = OH) 146542 4
Fremgangsmåde som i eksempel 1 under anvendelse af 1,1 g 2 5 1 4-demethoxy-2,3-dichlordaunomycin (I; R = R = H; R =
Cl). Derved opnås 0,42 g 4-demethoxy-2,3-dichloradriaray-cin som hydrochlorid, smp. 197-202°C.
Biologisk virkning af 4-demethoxyadriamycin i sammenligning med adriamycin<,
Tabel 1
Biologisk virkning på dyrkede HeLa-celler. Resultaterne udtrykt som 50% hæmningsdosis (ng/ml) ved forskellige tider efter udsætningen.
' " - - - 1 Ί ' ' I I . I >’ j
Forbindelse __ IDS0 2 t 8 t 24 t 4-demethoxyadriamycin 1,5 0,34 0,14 adriamycin 125 28 12,5 3emærkning: 4-demethoxyadriamycin er 100 gange så virksom som adriamycin, hvad angår hæmning af koioni-dannelsesevnen hos HeLa-celler "in vitro".
Tabel 2
Antitumorvirkning på Sarkom 180-ascites - bærende mus; intraperitoneal enkeltbehandling på 1. dag. Resultaterne er udtrykt som overlevelsestid for behandlede dyr som procent af kontrollerne (T/C%), antallet af langtidsover-levende (LTS) og toxiske dødsfald (Tox)0 146542 5
Forbindelse Dosis T/C LTS Tox mg/kg % 4-demethoxyadria- 0,25 over 5^3 7/10 - mycin 0,5 over 583 6/10 - 1,0 218 - 6/9 adriamvcin 2>5 over 583 7/10 adnamycin 5>0 211 . 2/10 3/9 10,0 163 - 4/10
Bemærkning s 4“demethoxyadriamycin er ifølge dette foraøg mindst 10 gange så virksomt som adriamycin.
Tabel 3
Tumor Forbindelse Dosis T/C Tox mg/kg °/o L 1210 ^ adriamycin 155 leukæmi 5 16« 1/10 10 155 4/10 4-demethoxy- 0,25 155 adriamycin 0,5 166 1 133 10/10 P 388 o adriamycin 2*5 173 leukæmi^ 5 218 io 250 1/10 4-demethoxy- 0,25 168 adriamycin 0,5 195 1 209 2/10
Gross adriamycin 3,5 164 leukæmi 4>4 186 6,0 214 3/10 4-demethoxy- 0,35 228 1/10 adriamycin 0,45 214 1/10 0,6 157 8/10 5 1 BDF 1 mus modtog 10 ascitesceller i.p„ på dag 0o Behandling i.p. på dag 1.
β 2 BDF 1 mus modtog 10 ascitesceller i0p. på dag 0o Behandling i.p, på dag 1„ β 3 C3H/Hc mus modtog 2 x 10 leukæmiceller i.v0 på dag 0„
Behandling i„v. på dagene 1, 2, 3» . : 146542 6
Tabel 4
Virkning -på L 1210 - leukæmi« DDF 1 mus blev injiceret i.p. med lCr ascites-celler på dag 0 og behandlet i.p. på dag 1.
Forbindelse Dosis Τ/C LTS
mg/kg / adriamvcin 2,9 141 4,4 152 1/10 6.6 158 10 164 1/10 2.3- dimethyl- 1,9 152 4—demethoxy- 2,9 152
adriamyein 4,4 170 l/lO
1.4- dimethyl- 2,2 140 4-demethoxy- 3}3 165 adriamycin 4,4 175 1/10 6.6 150 2/10
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB47559/75A GB1511680A (en) | 1975-11-18 | 1975-11-18 | Daunosaminyl anthracyclinones |
| GB4755975 | 1975-11-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK513076A DK513076A (da) | 1977-05-19 |
| DK146542B true DK146542B (da) | 1983-10-31 |
| DK146542C DK146542C (da) | 1984-04-09 |
Family
ID=10445422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK513076A DK146542C (da) | 1975-11-18 | 1976-11-15 | Analogifremgangsmaade til fremstilling af daunosaminylanthracyclioner |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4125607A (da) |
| JP (1) | JPS5262269A (da) |
| AT (1) | AT349633B (da) |
| AU (1) | AU499514B2 (da) |
| BE (1) | BE848407A (da) |
| CA (1) | CA1072546A (da) |
| CH (1) | CH625252A5 (da) |
| DE (1) | DE2652391C3 (da) |
| DK (1) | DK146542C (da) |
| FR (1) | FR2347047A1 (da) |
| GB (1) | GB1511680A (da) |
| HK (1) | HK1282A (da) |
| MY (1) | MY8400400A (da) |
| NL (1) | NL178692C (da) |
| SE (1) | SE7612752L (da) |
| SU (1) | SU727148A3 (da) |
| ZA (1) | ZA766851B (da) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1535080A (en) * | 1976-08-12 | 1978-12-06 | Farmaceutici Italia | Naphthacenequinone derivatives |
| DE3100968A1 (de) * | 1980-01-16 | 1982-01-14 | Farmitalia Carlo Erba S.p.A., 20159 Milano | Anthracyclinderivate, verfahren zu ihrer herstellung und diese verbindungen enthaltende arzneimittel |
| US4585760A (en) * | 1981-07-16 | 1986-04-29 | American Cyanamid Company | Dimethylfurano heterocyclic analogs of daunomycin |
| JPS59212499A (ja) * | 1983-05-13 | 1984-12-01 | アドリヤ・ラボラトリ−ズ・インコ−ポレ−テツド | 抗腫瘍性抗生物質アントラサイクリンの4−デメトキシ−3′−デアミノ−3′(4−モリホリニル)誘導体 |
| US4831019A (en) * | 1983-10-31 | 1989-05-16 | Adria Laboratories, Inc. | Pharmaceutical preparations of 4-demethoxy-n-trifluoroacetyl anthracyclines |
| JPS60188149A (ja) * | 1984-03-07 | 1985-09-25 | 中松 義郎 | 人体冷却装置 |
| JPS61502956A (ja) * | 1984-06-14 | 1986-12-18 | ビオガル ジヨジセルジヤ−ル | アドリアマイシン及びそのハロゲン化塩の調整法 |
| GB2169286A (en) * | 1985-01-05 | 1986-07-09 | Erba Farmitalia | 4'-Deoxy-4'-halodoxorubicin-14-esters |
| GB2169284A (en) * | 1985-01-05 | 1986-07-09 | Erba Farmitalia | 4'-Epidoxorubicin-14-esters |
| GB2169285A (en) * | 1985-01-05 | 1986-07-09 | Erba Farmitalia | 4'-Deoxydoxorubicin-14-esters |
| US4663445A (en) * | 1985-03-20 | 1987-05-05 | The Ohio State Research Foundation | 1-fluoro, 4-fluoro, and 1,4-difluoro-2'-halo anthracycline antibiotics |
| JPS6272356A (ja) * | 1985-09-25 | 1987-04-02 | 松下電工株式会社 | 眼治療器 |
| JP2736255B2 (ja) | 1987-03-11 | 1998-04-02 | フアルマシア・エ・アツプジヨン・エツセ・ピー・アー | イムノグロブリン結合体 |
| GB8708927D0 (en) * | 1987-04-14 | 1987-05-20 | Erba Farmitalia | Chiral synthesis of anthracyclines |
| GB2212154B (en) * | 1987-11-10 | 1991-03-27 | Erba Carlo Spa | New 4-demethoxy anthracycline derivatives |
| DK2991993T3 (da) * | 2013-04-29 | 2018-07-30 | Nerviano Medical Sciences Srl | Nye morpholinylanthracyclinderivater |
| EP3215513B1 (en) * | 2014-11-05 | 2019-05-08 | Nerviano Medical Sciences S.r.l. | Functionalized morpholinyl anthracycline derivatives |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2260438C3 (de) * | 1972-12-11 | 1980-01-10 | Societa Farmaceutici Italia, Mailand (Italien) | Adriamycinester und deren Salze, Verfahren zu deren Herstellung und Arzneimittel |
| US4020270A (en) * | 1974-05-02 | 1977-04-26 | Societa' Farmaceutici Italia S.P.A. | L-lyxohex-1-enopyranose derivative |
| US4039663A (en) * | 1975-03-19 | 1977-08-02 | Societa' Farmaceutici Italia S.P.A. | Daunomycins, process for their uses and intermediates |
| GB1499026A (en) * | 1975-06-20 | 1978-01-25 | Farmaceutici Italia | Adriamycin esters |
-
1975
- 1975-11-18 GB GB47559/75A patent/GB1511680A/en not_active Expired
-
1976
- 1976-11-01 US US05/737,473 patent/US4125607A/en not_active Expired - Lifetime
- 1976-11-08 NL NLAANVRAGE7612389,A patent/NL178692C/xx not_active IP Right Cessation
- 1976-11-15 AT AT849076A patent/AT349633B/de not_active IP Right Cessation
- 1976-11-15 AU AU19643/76A patent/AU499514B2/en not_active Expired
- 1976-11-15 SE SE7612752A patent/SE7612752L/xx unknown
- 1976-11-15 DK DK513076A patent/DK146542C/da not_active IP Right Cessation
- 1976-11-16 FR FR7634439A patent/FR2347047A1/fr active Granted
- 1976-11-16 ZA ZA00766851A patent/ZA766851B/xx unknown
- 1976-11-17 JP JP51138271A patent/JPS5262269A/ja active Granted
- 1976-11-17 BE BE172414A patent/BE848407A/xx not_active IP Right Cessation
- 1976-11-17 CA CA265,889A patent/CA1072546A/en not_active Expired
- 1976-11-17 SU SU762420456A patent/SU727148A3/ru active
- 1976-11-17 CH CH1448176A patent/CH625252A5/de not_active IP Right Cessation
- 1976-11-17 DE DE2652391A patent/DE2652391C3/de not_active Expired
-
1982
- 1982-01-14 HK HK12/82A patent/HK1282A/xx unknown
-
1984
- 1984-12-30 MY MY400/84A patent/MY8400400A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7612389A (nl) | 1977-05-23 |
| HK1282A (en) | 1982-01-22 |
| CA1072546A (en) | 1980-02-26 |
| US4125607A (en) | 1978-11-14 |
| AT349633B (de) | 1979-04-10 |
| FR2347047B1 (da) | 1980-03-14 |
| ZA766851B (en) | 1978-06-28 |
| NL178692C (nl) | 1986-05-01 |
| SU727148A3 (ru) | 1980-04-05 |
| MY8400400A (en) | 1984-12-31 |
| NL178692B (nl) | 1985-12-02 |
| FR2347047A1 (fr) | 1977-11-04 |
| DK513076A (da) | 1977-05-19 |
| AU499514B2 (en) | 1979-04-26 |
| ATA849076A (de) | 1978-09-15 |
| SE7612752L (sv) | 1977-05-19 |
| CH625252A5 (da) | 1981-09-15 |
| JPS5262269A (en) | 1977-05-23 |
| JPS5736919B2 (da) | 1982-08-06 |
| DE2652391B2 (de) | 1981-05-21 |
| BE848407A (fr) | 1977-05-17 |
| GB1511680A (en) | 1978-05-24 |
| DE2652391C3 (de) | 1982-04-08 |
| DK146542C (da) | 1984-04-09 |
| DE2652391A1 (de) | 1977-05-26 |
| AU1964376A (en) | 1978-05-25 |
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