AR228631A1 - Procedimiento para preparar nuevos derivados de 4-amino-6,7-dimetoxi-2-piperazinoquinazolina - Google Patents
Procedimiento para preparar nuevos derivados de 4-amino-6,7-dimetoxi-2-piperazinoquinazolinaInfo
- Publication number
- AR228631A1 AR228631A1 AR287957A AR28795781A AR228631A1 AR 228631 A1 AR228631 A1 AR 228631A1 AR 287957 A AR287957 A AR 287957A AR 28795781 A AR28795781 A AR 28795781A AR 228631 A1 AR228631 A1 AR 228631A1
- Authority
- AR
- Argentina
- Prior art keywords
- piperazinoquinazoline
- dimetoxi
- amino
- procedure
- new derivatives
- 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 |
---|---|
AR228631A1 true AR228631A1 (es) | 1983-03-30 |
Family
ID=10518236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AR287957A AR228631A1 (es) | 1980-12-29 | 1981-12-28 | Procedimiento para preparar nuevos derivados de 4-amino-6,7-dimetoxi-2-piperazinoquinazolina |
Country Status (23)
Country | Link |
---|---|
US (3) | US4435401A (ko) |
EP (1) | EP0055583B1 (ko) |
JP (1) | JPS57181068A (ko) |
KR (1) | KR830007635A (ko) |
AR (1) | AR228631A1 (ko) |
AT (1) | ATE15191T1 (ko) |
AU (1) | AU529367B2 (ko) |
CA (1) | CA1165318A (ko) |
CS (1) | CS236667B2 (ko) |
DD (1) | DD201901A5 (ko) |
DE (1) | DE3172089D1 (ko) |
DK (1) | DK152430C (ko) |
ES (1) | ES8405787A1 (ko) |
FI (1) | FI70411C (ko) |
GR (1) | GR76980B (ko) |
IE (1) | IE52232B1 (ko) |
IL (1) | IL64665A (ko) |
NO (1) | NO814454L (ko) |
PH (1) | PH17079A (ko) |
PL (2) | PL136217B1 (ko) |
PT (1) | PT74205B (ko) |
YU (1) | YU312781A (ko) |
ZA (1) | ZA818932B (ko) |
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 |
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 |
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 |
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 |
EP0489925B1 (en) * | 1990-07-03 | 1996-06-12 | Mitsui Petrochemical Industries, Ltd. | Pyrimidine compound and pharmaceutically acceptable salt thereof |
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 |
SK285198B6 (sk) * | 1997-10-27 | 2006-08-03 | Neurosearch A/S | Homopiperazínový derivát, farmaceutická kompozícia obsahujúca tento derivát a jeho použitie |
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 |
JP5149009B2 (ja) | 2004-09-20 | 2013-02-20 | ゼノン・ファーマシューティカルズ・インコーポレイテッド | ヒトステアロイル−CoAデサチュラーゼを阻害するためのピリダジン誘導体 |
MX2007003327A (es) | 2004-09-20 | 2007-06-05 | Xenon Pharmaceuticals Inc | Derivados heterociclicos, y su uso como mediadores de estearoil-coa desaturasa. |
TW200626154A (en) | 2004-09-20 | 2006-08-01 | Xenon Pharmaceuticals Inc | Heterocyclic derivatives and their use as therapeutic agents |
JP5043668B2 (ja) | 2004-09-20 | 2012-10-10 | ゼノン・ファーマシューティカルズ・インコーポレイテッド | 複素環誘導体および治療薬としてのそれらの使用 |
JP5080256B2 (ja) * | 2004-09-20 | 2012-11-21 | ゼノン・ファーマシューティカルズ・インコーポレイテッド | 二環式複素環誘導体およびステアロイル−CoAデサチュラーゼ(SCD)のインヒビターとしてのそれらの使用 |
EP1804799B1 (en) | 2004-09-20 | 2013-08-21 | Xenon Pharmaceuticals Inc. | Heterocyclic derivatives and their use as stearoyl-coa desaturase inhibitors |
DE602005025924D1 (en) * | 2004-09-20 | 2011-02-24 | Xenon Pharmaceuticals Inc | Royl-coa-desaturase |
BRPI0515483A (pt) | 2004-09-20 | 2008-07-22 | Xenon Pharmaceuticals Inc | derivados heterocìclicos para o tratamento de doenças mediadas por enzimas estearoil-coa desaturase |
MX2007003332A (es) | 2004-09-20 | 2007-06-05 | Xenon Pharmaceuticals Inc | Derivados heterociclicos y su uso como inhibidores de estearoil-coa-desaturasa. |
MX2007015216A (es) | 2005-06-03 | 2008-02-22 | Xenon Pharmaceuticals Inc | Derivados de aminotiazol y sus usos como agentes terapeuticos. |
MY156814A (en) | 2007-03-15 | 2016-03-31 | Novartis Ag | Organic compounds and their uses |
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 |
US4171363A (en) | 1977-02-22 | 1979-10-16 | Bristol-Myers Company | 1,2,3-Thiadiazole process |
US4101548A (en) * | 1977-02-22 | 1978-07-18 | Bristol-Myers Company | 1,2,3-Thiadiazole amides |
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 AT AT81306025T patent/ATE15191T1/de active
- 1981-12-22 EP EP81306025A patent/EP0055583B1/en not_active Expired
- 1981-12-22 DK DK569781A patent/DK152430C/da not_active IP Right Cessation
- 1981-12-23 IE IE3053/81A patent/IE52232B1/en unknown
- 1981-12-23 ZA ZA@@@@00818932A patent/ZA818932B/xx unknown
- 1981-12-23 CA CA000393109A patent/CA1165318A/en not_active Expired
- 1981-12-23 US US06/333,672 patent/US4435401A/en not_active Expired - Lifetime
- 1981-12-23 AU AU78846/81A patent/AU529367B2/en not_active Ceased
- 1981-12-28 DD DD81236333A patent/DD201901A5/de unknown
- 1981-12-28 JP JP56216057A patent/JPS57181068A/ja active Granted
- 1981-12-28 ES ES508383A patent/ES8405787A1/es not_active Expired
- 1981-12-28 NO NO814454A patent/NO814454L/no unknown
- 1981-12-28 GR GR66910A patent/GR76980B/el unknown
- 1981-12-28 PH PH26680A patent/PH17079A/en unknown
- 1981-12-28 KR KR1019810005269A patent/KR830007635A/ko unknown
- 1981-12-28 AR AR287957A patent/AR228631A1/es active
- 1981-12-28 PT PT74205A patent/PT74205B/pt unknown
- 1981-12-28 IL IL64665A patent/IL64665A/xx unknown
- 1981-12-29 YU YU03127/81A patent/YU312781A/xx unknown
- 1981-12-29 CS CS819946A patent/CS236667B2/cs unknown
- 1981-12-30 PL PL1981243280A patent/PL136217B1/pl unknown
- 1981-12-30 PL PL1981234523A patent/PL136268B1/pl unknown
-
1983
- 1983-08-24 US US06/525,964 patent/US4483857A/en not_active Expired - Lifetime
- 1983-08-24 US US06/526,005 patent/US4483859A/en not_active Expired - Lifetime
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR228631A1 (es) | Procedimiento para preparar nuevos derivados de 4-amino-6,7-dimetoxi-2-piperazinoquinazolina | |
AR218553A1 (es) | Procedimiento para la preparacion de 1-(2-hidroxi-3-amino-propilo sustituido)-2-nitroimidazoles | |
AR223958A1 (es) | Procedimiento para la preparacion de derivados de(4-hidroxipirrolidin-2-on-1-il)-acilamida | |
MX154685A (es) | Procedimiento para la preparacion de derivados de urea | |
AR219734A1 (es) | Procedimiento para la preparacion de derivados de (4-hidroxipirrolidin-2-on-1-il)-acilamida | |
AR221851A1 (es) | Procedimiento para la preparacion de derivados de 4-piperidino-6,7-dialcoxi-quinazolina | |
ES504218A0 (es) | Procedimiento para preparar derivados de amidas. | |
AR225727A1 (es) | Procedimiento para la obtencion de nuevos derivados de interfennilen-8-aza-9-dioxotia-11,12-seco-prostaglandina | |
ES518189A0 (es) | Procedimiento para preparar nuevos derivados de encefalina. | |
AR223487A1 (es) | Procedimientos para la preparacion de nuevos derivados de 4-amino-2-piperidinoquinazolina | |
ES500455A0 (es) | Procedimiento para la preparacion de nuevos derivados de urea | |
AR218296A1 (es) | Procedimiento para la preparacion de nuevos derivados de 14-beta-amino-morfina | |
ES511058A0 (es) | Procedimiento para preparar nuevos derivados de fenoxibencilo. | |
AR220730A1 (es) | Procedimiento para la preparacion de nuevos derivados de la i-((benzoxatiolil)-metil)-4-heterociclil-piperazina | |
ES502649A0 (es) | Procedimiento para la preparacion de derivados de fenoxi- aminopropanol substituidos | |
ES504787A0 (es) | Procedimiento para la obtencion de derivados de diaril-imi- dazol | |
ES505206A0 (es) | Procedimiento para la obtencion de derivados de 1-azolil-bu-tano fluorados | |
ES515767A0 (es) | Procedimiento para preparar derivados de indano. | |
ES515567A0 (es) | Procedimiento para preparar derivados de fenantreno. | |
ES516299A0 (es) | "procedimiento para preparar nuevos derivados de 20,21-dinoreburnamenina". | |
AR228051A1 (es) | Procedimiento para la preparacion de nuevos 2-piperidino-4-amino-6,7-dimetoxiquinazolinas sustituidas | |
ES504681A0 (es) | Procedimiento para preparar derivados de 11- hidroxi-13 oxa-prostaglandina. | |
ES521460A0 (es) | Procedimiento para preparar derivados de bencimidazol. | |
AR220127A1 (es) | Procedimiento para la preparacion de d-homopregna-4,8-dieno-3,20-dionas | |
ES494605A0 (es) | Procedimiento para la obtencion de nuevos derivados de 4,7- fenantrolina |