PH17079A - Derivatives of 4-amino-6,7-dimethoxy-2-piperazinoquinoline and compositions thereof - Google Patents
Derivatives of 4-amino-6,7-dimethoxy-2-piperazinoquinoline and compositions thereofInfo
- Publication number
- PH17079A PH17079A PH26680A PH26680A PH17079A PH 17079 A PH17079 A PH 17079A PH 26680 A PH26680 A PH 26680A PH 26680 A PH26680 A PH 26680A PH 17079 A PH17079 A PH 17079A
- Authority
- PH
- Philippines
- Prior art keywords
- piperazinoquinoline
- dimethoxy
- derivatives
- amino
- compositions
- Prior art date
Links
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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/32—One oxygen, sulfur or nitrogen atom
- C07D239/34—One oxygen atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/12—Antihypertensives
-
- 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
- C07D237/22—Nitrogen and oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/32—One oxygen, sulfur or nitrogen atom
- C07D239/42—One nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/48—Two nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
- C07D239/72—Quinazolines; Hydrogenated quinazolines
- C07D239/95—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in positions 2 and 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/42—One nitrogen atom
- C07D251/44—One nitrogen atom with halogen atoms attached to the two other ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/42—One nitrogen atom
- C07D251/46—One nitrogen atom with oxygen or sulfur atoms attached to the two other ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8041411 | 1980-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PH17079A true PH17079A (en) | 1984-05-24 |
Family
ID=10518236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PH26680A PH17079A (en) | 1980-12-29 | 1981-12-28 | Derivatives of 4-amino-6,7-dimethoxy-2-piperazinoquinoline and compositions thereof |
Country Status (23)
| Country | Link |
|---|---|
| US (3) | US4435401A (es) |
| EP (1) | EP0055583B1 (es) |
| JP (1) | JPS57181068A (es) |
| KR (1) | KR830007635A (es) |
| AR (1) | AR228631A1 (es) |
| AT (1) | ATE15191T1 (es) |
| AU (1) | AU529367B2 (es) |
| CA (1) | CA1165318A (es) |
| CS (1) | CS236667B2 (es) |
| DD (1) | DD201901A5 (es) |
| DE (1) | DE3172089D1 (es) |
| DK (1) | DK152430C (es) |
| ES (1) | ES508383A0 (es) |
| FI (1) | FI70411C (es) |
| GR (1) | GR76980B (es) |
| IE (1) | IE52232B1 (es) |
| IL (1) | IL64665A (es) |
| NO (1) | NO814454L (es) |
| PH (1) | PH17079A (es) |
| PL (2) | PL136268B1 (es) |
| PT (1) | PT74205B (es) |
| YU (1) | YU312781A (es) |
| ZA (1) | ZA818932B (es) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI70411C (fi) * | 1980-12-29 | 1986-09-19 | Pfizer | Foerfarande foer framstaellning av nya antihypertensiva 4-amino-6,7-dimetoxi-2-piperazinokinazolin derivat |
| DE3114088A1 (de) * | 1981-04-08 | 1982-10-28 | Bayer Ag, 5090 Leverkusen | Wasserloesliche triazinverbindungen, ihre herstellung und ihre verwendung |
| FR2521560A1 (fr) * | 1982-02-17 | 1983-08-19 | Adir | Nouveaux derives de piperazine et d'homopiperazine, leurs procedes de preparation et les compositions pharmaceutiques les renfermant |
| CH651027A5 (de) * | 1982-11-12 | 1985-08-30 | Sandoz Ag | Heterocyclische verbindungen, ihre herstellung und verwendung. |
| US5001125A (en) | 1984-03-26 | 1991-03-19 | Janssen Pharmaceutica N.V. | Anti-virally active pyridazinamines |
| JPS61140568A (ja) * | 1984-12-14 | 1986-06-27 | Mitsui Petrochem Ind Ltd | キナゾリン誘導体及びそれを有効成分とする血圧降下剤 |
| CA1307786C (en) * | 1984-12-14 | 1992-09-22 | Keiichi Yokoyama | Quinazoline derivatives and antihypertensive preparations containing same as effective components |
| JPS6267077A (ja) * | 1985-09-18 | 1987-03-26 | Mitsui Petrochem Ind Ltd | キナゾリン誘導体及び医薬 |
| AT384218B (de) * | 1985-12-04 | 1987-10-12 | Gerot Pharmazeutika | Verfahren zur herstellung von neuen chinazolin-derivaten |
| US5072564A (en) * | 1988-10-11 | 1991-12-17 | Campana Technology, Inc. | Decorative panel |
| WO1992000970A1 (fr) * | 1990-07-03 | 1992-01-23 | Mitsui Petrochemical Industries, Limited | Compose de pyrimidine et sel pharmaceutiquement acceptable de ce compose |
| IL108630A0 (en) * | 1993-02-18 | 1994-05-30 | Fmc Corp | Insecticidal substituted 2,4-diaminoquinazolines |
| IT1286302B1 (it) * | 1996-04-10 | 1998-07-08 | Rotta Research Lab | Chinazoline-4-amino-2-(piperidino-1-il-4-sostituite) ad attivita' anti-ipertensiva, procedimento per la loro preparazione e loro uso |
| ATE491689T1 (de) * | 1997-10-27 | 2011-01-15 | Neurosearch As | Heteroaryl diazacycloalkane als cholinergische ligande für nikotin-acetylcholin-rezeptoren |
| US6150362A (en) * | 1997-12-12 | 2000-11-21 | Henkin; Jack | Triazine angiogenesis inhibitors |
| US6825198B2 (en) * | 2001-06-21 | 2004-11-30 | Pfizer Inc | 5-HT receptor ligands and uses thereof |
| US20050119251A1 (en) * | 2001-12-21 | 2005-06-02 | Jian-Min Fu | Nicotinamide derivatives and their use as therapeutic agents |
| MY145822A (en) * | 2004-08-13 | 2012-04-30 | Neurogen Corp | Substituted biaryl piperazinyl-pyridine analogues |
| EP2269610A3 (en) | 2004-09-20 | 2011-03-09 | Xenon Pharmaceuticals Inc. | Heterocyclic derivatives and their use as stearoyl-coa desaturase inhibitors |
| AU2005286648A1 (en) | 2004-09-20 | 2006-03-30 | Xenon Pharmaceuticals Inc. | Heterocyclic derivatives and their use as stearoyl-CoA desaturase inhibitors |
| CN101083992A (zh) | 2004-09-20 | 2007-12-05 | 泽农医药公司 | 抑制人硬脂酰CoA去饱和酶的哒嗪衍生物 |
| AR051095A1 (es) * | 2004-09-20 | 2006-12-20 | Xenon Pharmaceuticals Inc | Derivados heterociclicos y su uso comoinhibidores de la estearoil-coa desaturasa |
| MX2007003327A (es) | 2004-09-20 | 2007-06-05 | Xenon Pharmaceuticals Inc | Derivados heterociclicos, y su uso como mediadores de estearoil-coa desaturasa. |
| CA2580787A1 (en) | 2004-09-20 | 2006-03-30 | Xenon Pharmaceuticals Inc. | Heterocyclic derivatives for the treatment of diseases mediated by stearoyl-coa desaturase enzymes |
| TW200626138A (en) | 2004-09-20 | 2006-08-01 | Xenon Pharmaceuticals Inc | Heterocyclic derivatives and their use as therapeutic agents |
| TW200626148A (en) * | 2004-09-20 | 2006-08-01 | Xenon Pharmaceuticals Inc | Heterocyclic derivatives and their use as therapeutic agents |
| AR051092A1 (es) | 2004-09-20 | 2006-12-20 | Xenon Pharmaceuticals Inc | Derivados heterociclicos y su uso como inhibidores de la estearoil-coa |
| CA2618646A1 (en) | 2005-06-03 | 2007-11-15 | Xenon Pharmaceuticals Inc. | Aminothiazole derivatives as human stearoyl-coa desaturase inhibitors |
| JP5550352B2 (ja) | 2007-03-15 | 2014-07-16 | ノバルティス アーゲー | 有機化合物およびその使用 |
| US20100041663A1 (en) | 2008-07-18 | 2010-02-18 | Novartis Ag | Organic Compounds as Smo Inhibitors |
| GB201008210D0 (en) * | 2010-05-17 | 2010-06-30 | Senexis Ltd | Compounds |
| GB201008209D0 (en) * | 2010-05-17 | 2010-06-30 | Senexis Ltd | Compounds |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3496179A (en) * | 1967-10-11 | 1970-02-17 | Pfizer & Co C | 2-amino-3,4-dihydroquinazolines |
| US3517005A (en) | 1967-10-26 | 1970-06-23 | Pfizer & Co C | Certain 2- and 4-substituted quinazolines |
| US3511836A (en) | 1967-12-13 | 1970-05-12 | Pfizer & Co C | 2,4,6,7-tetra substituted quinazolines |
| US3669968A (en) | 1970-05-21 | 1972-06-13 | Pfizer | Trialkoxy quinazolines |
| US3900476A (en) | 1973-05-17 | 1975-08-19 | Upjohn Co | 2(2'-pyrimidylamino)quinazolines and their preparation |
| US3935213A (en) * | 1973-12-05 | 1976-01-27 | Pfizer Inc. | Process for hypotensive 4-amino-2-(piperazin-1-yl) quinazoline derivatives |
| US4062844A (en) * | 1976-09-20 | 1977-12-13 | Pfizer Inc. | Process for preparing hypotensive 2-(4-aroylpiperazin-1-yl)-amino-6,7-dimethoxyquinazolines |
| US4101548A (en) * | 1977-02-22 | 1978-07-18 | Bristol-Myers Company | 1,2,3-Thiadiazole amides |
| US4171363A (en) | 1977-02-22 | 1979-10-16 | Bristol-Myers Company | 1,2,3-Thiadiazole process |
| US4188390A (en) | 1977-11-05 | 1980-02-12 | Pfizer Inc. | Antihypertensive 4-amino-2-[4-(1,4-benzodioxan-2-carbonyl) piperazin-1-yl or homopiperazin-1-yl]quinazolines |
| US4161595A (en) | 1978-10-02 | 1979-07-17 | Bristol-Myers Company | Levulinic acid salt |
| FI67699C (fi) * | 1979-01-31 | 1985-05-10 | Orion Yhtymae Oy | Foerfarande foer framstaellning av 6,7-dimetoxi-4-amino-2-(4-(2-furoyl)-1-piperazinyl)kinazolinhydroklorid med blodtryckssaenkande verkan |
| US4287341A (en) | 1979-11-01 | 1981-09-01 | Pfizer Inc. | Alkoxy-substituted-6-chloro-quinazoline-2,4-diones |
| US4351832A (en) | 1980-04-18 | 1982-09-28 | American Home Products Corporation | 2-(Piperazinyl)-4-pyrimidinamines |
| FI70411C (fi) * | 1980-12-29 | 1986-09-19 | Pfizer | Foerfarande foer framstaellning av nya antihypertensiva 4-amino-6,7-dimetoxi-2-piperazinokinazolin derivat |
-
1981
- 1981-12-17 FI FI814055A patent/FI70411C/fi not_active IP Right Cessation
- 1981-12-22 DE DE8181306025T patent/DE3172089D1/de not_active Expired
- 1981-12-22 DK DK569781A patent/DK152430C/da not_active IP Right Cessation
- 1981-12-22 EP EP81306025A patent/EP0055583B1/en not_active Expired
- 1981-12-22 AT AT81306025T patent/ATE15191T1/de active
- 1981-12-23 CA CA000393109A patent/CA1165318A/en not_active Expired
- 1981-12-23 ZA ZA@@@@00818932A patent/ZA818932B/xx unknown
- 1981-12-23 US US06/333,672 patent/US4435401A/en not_active Expired - Lifetime
- 1981-12-23 IE IE3053/81A patent/IE52232B1/en unknown
- 1981-12-23 AU AU78846/81A patent/AU529367B2/en not_active Ceased
- 1981-12-28 ES ES508383A patent/ES508383A0/es active Granted
- 1981-12-28 IL IL64665A patent/IL64665A/xx unknown
- 1981-12-28 DD DD81236333A patent/DD201901A5/de unknown
- 1981-12-28 AR AR287957A patent/AR228631A1/es active
- 1981-12-28 PT PT74205A patent/PT74205B/pt unknown
- 1981-12-28 JP JP56216057A patent/JPS57181068A/ja active Granted
- 1981-12-28 NO NO814454A patent/NO814454L/no unknown
- 1981-12-28 GR GR66910A patent/GR76980B/el unknown
- 1981-12-28 KR KR1019810005269A patent/KR830007635A/ko unknown
- 1981-12-28 PH PH26680A patent/PH17079A/en unknown
- 1981-12-29 YU YU03127/81A patent/YU312781A/xx unknown
- 1981-12-29 CS CS819946A patent/CS236667B2/cs unknown
- 1981-12-30 PL PL1981234523A patent/PL136268B1/pl unknown
- 1981-12-30 PL PL1981243280A patent/PL136217B1/pl unknown
-
1983
- 1983-08-24 US US06/526,005 patent/US4483859A/en not_active Expired - Lifetime
- 1983-08-24 US US06/525,964 patent/US4483857A/en not_active Expired - Lifetime
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PH17079A (en) | Derivatives of 4-amino-6,7-dimethoxy-2-piperazinoquinoline and compositions thereof | |
| IL56578A0 (en) | Quinazoline derivatives,their preparation and phapmaceuticcal compositions containing them | |
| PH22672A (en) | Imidazolylmethyltetrahydrocarbazolone derivatives, composition and method of use thereof | |
| PH17937A (en) | Imidazole derivatives,their compositions and use thereof | |
| DE3174472D1 (en) | Cephalosporin derivatives, their preparation and compositions containing them | |
| IL64504A (en) | Aminoalkoxyphenyl substituted quinazolinones and pyridopyrimidinones,their preparation and pharmaceutical compositions containing them | |
| PH18979A (en) | Banzazepine derivatives,their pharmaceutical compositions and method of use | |
| IL60514A0 (en) | Quinazoline derivatives,their preparation and phamraceutical compositions containing them | |
| JPS56158780A (en) | Substituted dibenzooxepine, its manufacture and composition | |
| PH15278A (en) | Antihypertensive pyridines and compositions | |
| JPS6452763A (en) | Novel heterocyclic derivative, manufacture and medicinal composition | |
| JPS5775976A (en) | Novel heterocyclic derivative, manufacture and medicinal composition containing same | |
| IL62167A0 (en) | Phenoxy-aminopropanol derivatives,their manufacture and pharmaceutical compositions containing them | |
| IL63145A (en) | Imidazothienopyrimidinedione derivatives,their manufacture and pharmaceutical compositions containing them | |
| IL64555A0 (en) | Pharmaceutical compositions containing 3-amine-2-pyrazoline derivatives,certain such novel derivatives and their preparation | |
| PH13728A (en) | Chromene derivatives,compositions containing same and their method of use | |
| GB2079285B (en) | Dipthosphonate derivatives and pahrmaceutical compositions containing them | |
| DE3269621D1 (en) | Phenoxyphenyl-aminocarboxylic-acid derivatives, their preparation, compositions containing them and their use | |
| PH16754A (en) | Novel acylamino-benzazole derivatives,and pharmaceutical composition containing same | |
| IL62592A (en) | Octahydrophenyl-quinolizine derivatives,their manufacture and pharmaceutical compositions containing them | |
| IL63043A0 (en) | 4-substituted 3,3-dimethyl-butan-2-ones,their preparation and their use as intermediates | |
| IL62970A0 (en) | Substituted phenoxy-aminopropanol derivatives,their preparation and pharmaceutical compositions containing them | |
| JPS56131578A (en) | Novel derivative of 2-piperidino-4-amino-6,7- dimethoxyquinazoline and its manufacture | |
| PH12781A (en) | Antihypertensive compositions and method of use thereof | |
| GB2084578B (en) | Coumarinyl-7 and 3,4-benzo coumarinyl-7 derivatives |