YU20303A - Farmaceutski preparat za prevenciju učestanog javljanja migrene - Google Patents

Farmaceutski preparat za prevenciju učestanog javljanja migrene

Info

Publication number
YU20303A
YU20303A YU20303A YU20303A YU20303A YU 20303 A YU20303 A YU 20303A YU 20303 A YU20303 A YU 20303A YU 20303 A YU20303 A YU 20303A YU 20303 A YU20303 A YU 20303A
Authority
YU
Yugoslavia
Prior art keywords
prevention
pharmaceutical preparation
migraine recurrence
migraine
recurrence
Prior art date
Application number
YU20303A
Other languages
English (en)
Inventor
Neville Colin Jackson
Stephen Uden
Original Assignee
Pfizer Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfizer Inc. filed Critical Pfizer Inc.
Publication of YU20303A publication Critical patent/YU20303A/sh

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • A61K31/403Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
    • A61K31/404Indoles, e.g. pindolol
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • A61K31/403Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • A61K31/403Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
    • A61K31/404Indoles, e.g. pindolol
    • A61K31/4045Indole-alkylamines; Amides thereof, e.g. serotonin, melatonin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/41961,2,4-Triazoles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/42Oxazoles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/42Oxazoles
    • A61K31/422Oxazoles not condensed and containing further heterocyclic rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445Non condensed piperidines, e.g. piperocaine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445Non condensed piperidines, e.g. piperocaine
    • A61K31/4523Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems
    • A61K31/454Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic 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
    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A61K31/52Purines, e.g. adenine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/06Antimigraine agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/08Antiepileptics; Anticonvulsants

Landscapes

  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Neurosurgery (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Neurology (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Pain & Pain Management (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

Pronalazak se odnosi na primenu agonista 5-HT18/1D receptora, ili njegove farmaceutski prihvatljive soli ili preparata, za proizvodnju farmaceutske kompozicije sa dvostrukim, zadržanim, odloženim, kontrolisanim ili pulsirajućim ispuštanjem za prevenciju ponovnog javljanja migrene.[Invention herewith applied relates to the application of agonists 5-HT18/1D receptors, or their pharmaceutically suitable salt or preparations, for production of pharmaceutical composition with double, retained, delayed, controlled or pulsating release for prevention of migraine recurrence.
YU20303A 1998-07-30 1999-06-14 Farmaceutski preparat za prevenciju učestanog javljanja migrene YU20303A (sh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9816556.6A GB9816556D0 (en) 1998-07-30 1998-07-30 Therapy
YU6401A YU6401A (sh) 1998-07-30 1999-06-14 Primena eletriptana za izradu leka za prevenciju učestanog javljanja migrene

Publications (1)

Publication Number Publication Date
YU20303A true YU20303A (sh) 2006-08-17

Family

ID=10836395

Family Applications (2)

Application Number Title Priority Date Filing Date
YU20303A YU20303A (sh) 1998-07-30 1999-06-14 Farmaceutski preparat za prevenciju učestanog javljanja migrene
YU6401A YU6401A (sh) 1998-07-30 1999-06-14 Primena eletriptana za izradu leka za prevenciju učestanog javljanja migrene

Family Applications After (1)

Application Number Title Priority Date Filing Date
YU6401A YU6401A (sh) 1998-07-30 1999-06-14 Primena eletriptana za izradu leka za prevenciju učestanog javljanja migrene

Country Status (36)

Country Link
EP (3) EP1466601A3 (sh)
JP (1) JP3824863B2 (sh)
KR (2) KR20030078876A (sh)
CN (2) CN1155379C (sh)
AP (1) AP1402A (sh)
AT (1) ATE261304T1 (sh)
AU (1) AU3952199A (sh)
BG (1) BG65309B1 (sh)
BR (1) BR9912588A (sh)
CA (1) CA2338901C (sh)
CZ (1) CZ2001357A3 (sh)
DE (1) DE69915486T2 (sh)
DK (1) DK1100499T3 (sh)
EA (2) EA004036B1 (sh)
EE (1) EE04703B1 (sh)
ES (1) ES2214027T3 (sh)
GB (1) GB9816556D0 (sh)
GE (2) GEP20063719B (sh)
HK (1) HK1038198A1 (sh)
HR (1) HRP20010079A2 (sh)
HU (1) HUP0103424A3 (sh)
ID (1) ID26996A (sh)
IL (1) IL140169A0 (sh)
IS (1) IS2253B (sh)
NO (1) NO20010489L (sh)
NZ (2) NZ508736A (sh)
OA (1) OA11576A (sh)
PL (1) PL194611B1 (sh)
PT (1) PT1100499E (sh)
SG (1) SG125910A1 (sh)
SK (1) SK1182001A3 (sh)
TR (1) TR200100314T2 (sh)
TW (2) TW537893B (sh)
UA (1) UA76399C2 (sh)
WO (1) WO2000006161A1 (sh)
YU (2) YU20303A (sh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8022095B2 (en) 1996-08-16 2011-09-20 Pozen, Inc. Methods of treating headaches using 5-HT agonists in combination with long-acting NSAIDs
GB9915231D0 (en) 1999-06-29 1999-09-01 Pfizer Ltd Pharmaceutical complex
CN1176649C (zh) * 2002-10-16 2004-11-24 上海医药工业研究院 舒马普坦干粉吸入剂及其制备方法
CA2509023C (en) * 2002-12-26 2011-05-24 Pozen Inc. Multilayer dosage forms containing nsaids and triptans
BRPI0409127A (pt) 2003-04-11 2006-03-28 Pfizer combinação farmacêutica compreendendo eletriptano e bicarbonato de sódio
GB2407498B (en) * 2003-10-30 2008-06-11 Cipla Ltd Oral formulations for 5-HT receptor agonists with reduced degradation of active ingredient
FR2926721B1 (fr) * 2008-01-30 2011-07-22 Philippe Perovitch Forme galenique pour l'adminsitration par voie trans-muqueuse de triptans
US8618157B2 (en) 2008-06-20 2013-12-31 Alphapharm Pty. Ltd. Pharmaceutical formulation
CA2815437A1 (en) 2009-10-23 2011-04-28 Fortuderm, Ltd. Triptans for the treatment of psoriasis
EP2838517B1 (en) * 2012-04-18 2017-10-18 Contera Pharma APS Orally available pharmaceutical formulation suitable for improved management of movement disorders
CN103385876B (zh) * 2012-05-08 2016-01-13 四川滇虹医药开发有限公司 一种夫罗曲坦的药物组合物及其制备方法
CN104523709A (zh) * 2014-12-22 2015-04-22 青岛正大海尔制药有限公司 一种含有琥珀酸夫罗曲坦的复方缓释制剂
JP7227896B2 (ja) 2016-07-11 2023-02-22 コンテラ ファーマ エー/エス 朝の無動状態を治療するための拍動性薬物送達系

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006973A1 (en) * 1990-10-15 1992-04-30 Pfizer Inc. Indole derivatives
ES2106818T3 (es) * 1991-10-30 1997-11-16 Glaxo Group Ltd Composicion multicapa que contiene antagonistas de histamina o secotina.
US5464633A (en) * 1994-05-24 1995-11-07 Jagotec Ag Pharmaceutical tablets releasing the active substance after a definite period of time
GB9417310D0 (en) * 1994-08-27 1994-10-19 Pfizer Ltd Therapeutic agents
US5744482A (en) * 1994-10-05 1998-04-28 Eli Lilly And Company Serotonin agonist in combination with a tachykinin receptor antagonist in the treatment or prevention of migraine
US5698571A (en) * 1994-10-05 1997-12-16 Eli Lilly And Company 5-HT1F mediated inhibition of neurogenic meningeal extravasation: a method for the treatment of migraine
KR20000022239A (ko) * 1996-07-11 2000-04-25 토마스 헤인 인돌 선택성 세로토닌 작용약을 함유한 내포 복합체
ID24528A (id) * 1997-07-03 2000-07-20 Pfizer Komposisi-komposisi obat farmasi yang mengandung eletriptan hemisulfat dan kafein
US6514530B2 (en) * 1997-09-09 2003-02-04 Alza Corporation Dosage form comprising means for changing drug delivery shape

Also Published As

Publication number Publication date
YU6401A (sh) 2004-03-12
EP1466601A3 (en) 2005-04-13
IS5771A (is) 2000-12-15
EP1466601A2 (en) 2004-10-13
PT1100499E (pt) 2004-06-30
DE69915486T2 (de) 2005-03-03
DE69915486D1 (de) 2004-04-15
CN1309560A (zh) 2001-08-22
KR100441732B1 (ko) 2004-07-27
WO2000006161A1 (en) 2000-02-10
HRP20010079A2 (en) 2002-02-28
HUP0103424A2 (hu) 2002-02-28
DK1100499T3 (da) 2004-06-14
CZ2001357A3 (cs) 2001-10-17
EP1100499B1 (en) 2004-03-10
SK1182001A3 (en) 2001-10-08
NZ508736A (en) 2003-09-26
TW537893B (en) 2003-06-21
CN1522697A (zh) 2004-08-25
TW200300674A (en) 2003-06-16
EE200100061A (et) 2002-06-17
OA11576A (en) 2004-07-01
AP1402A (en) 2005-04-29
NO20010489D0 (no) 2001-01-29
GB9816556D0 (en) 1998-09-30
HUP0103424A3 (en) 2003-05-28
GEP20043157B (en) 2004-01-26
IS2253B (is) 2007-06-15
UA76399C2 (en) 2006-08-15
ID26996A (id) 2001-02-22
EA004036B1 (ru) 2003-12-25
EP1100499A1 (en) 2001-05-23
BG65309B1 (bg) 2008-01-31
ES2214027T3 (es) 2004-09-01
EE04703B1 (et) 2006-10-16
CA2338901A1 (en) 2000-02-10
PL194611B1 (pl) 2007-06-29
EA200201149A1 (ru) 2003-02-27
IL140169A0 (en) 2002-02-10
SG125910A1 (en) 2006-10-30
HK1038198A1 (en) 2002-03-08
AU3952199A (en) 2000-02-21
CN1155379C (zh) 2004-06-30
PL345803A1 (en) 2002-01-02
JP3824863B2 (ja) 2006-09-20
NO20010489L (no) 2001-03-26
AP2001002056A0 (en) 2001-03-31
ATE261304T1 (de) 2004-03-15
BR9912588A (pt) 2001-05-02
EP1435237A1 (en) 2004-07-07
KR20030078876A (ko) 2003-10-08
EA200100089A1 (ru) 2001-08-27
NZ527625A (en) 2005-01-28
CA2338901C (en) 2008-02-19
KR20010079582A (ko) 2001-08-22
JP2002521446A (ja) 2002-07-16
TR200100314T2 (tr) 2001-06-21
BG105277A (en) 2001-11-30
TWI248362B (en) 2006-02-01
GEP20063719B (en) 2006-01-10

Similar Documents

Publication Publication Date Title
YU20303A (sh) Farmaceutski preparat za prevenciju učestanog javljanja migrene
WO2001019360A3 (en) Pharmaceutical compositions comprising an adenosine receptor agonist or antagonist
ZA200107631B (en) Indoline derivatives as progesterone antagonists.
MY133996A (en) Compounds for the treatment of ischemia
IL142768A0 (en) N-ureidoalkyl-piperidines as modulators of chemokine receptor activity
MY119181A (en) Aryl pyrimidine derivatives
CA2416867A1 (en) Cyclopentanoindoles, compositions containing such compounds and methods of treatment
NL300281I2 (nl) Exenatide, desgewenst in de vorm van een farmaceutisch aanvaardbaar zout
HUP0103567A3 (en) 2-substituted-1-piperidyl benzimidazole compounds as orl1-receptor agonists, process for their preparation and pharmaceutical compositions containing the same
MXPA03010134A (es) Derivados de ciclohexan-1-4-diamina sustituidos.
RS50091B (sr) Upotreba retigabina u lečenju neuropatskog bola
AU3126600A (en) N-ureidoalkyl-piperidines as modulators of chemokine receptor activity
HUP0105313A3 (en) Potassium salt of (s)-omeprazole, process for its preparation and pharmaceutical composition containing the same and its use
AU4155897A (en) Cytotoxic amino sugar and related sugar derivatives of indolopyrrolocarbazoles
CY2469B1 (en) Pharmaceutical compositions for sustained release of the hmg-coa reductase inhibitor fluvastatin.
CA2378428A1 (en) Use of cgrp antagonists and cgrp release inhibitors for combating menopausal hot flushes
HRP20050055B1 (hr) Mikrokapsule za odloženo i kontrolirano oslobađanje perindoprila
CA2362698A1 (en) Resorcinol derivatives
NO983177L (no) Anvendelse av 1-enantiomeren av centkroman til fremstilling av et farmasaytisk preparat for behandling eller profylakse av brystkreft
IL157065A0 (en) 2h-1-benzopyran derivatives, processes for their preparation and pharmaceutical compositions thereof
UA66932C2 (en) Complex of eletriptan and sulphobutylether-beta-cyclodextrin, pharmaceutical composition, method for their manufacture and method for treating migraine
CA2366623A1 (en) Resorcinol composition
BG106078A (en) Thio-oxindole derivatives
AU7028798A (en) Use of 2-methylthiazolidine-2,4-dicarboxylic acid as mucolytic agent
WO2000037465A3 (en) Novel derivatives of swainsonine, processes for their preparation, and their use as therapeutic agents