ES485064A1 - Un procedimiento para preparar derivados de acido acetico - Google Patents
Un procedimiento para preparar derivados de acido aceticoInfo
- Publication number
- ES485064A1 ES485064A1 ES485064A ES485064A ES485064A1 ES 485064 A1 ES485064 A1 ES 485064A1 ES 485064 A ES485064 A ES 485064A ES 485064 A ES485064 A ES 485064A ES 485064 A1 ES485064 A1 ES 485064A1
- Authority
- ES
- Spain
- Prior art keywords
- translation
- acetic acid
- machine
- acid derivatives
- formula
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or 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
- C07D277/38—Nitrogen atoms
- C07D277/44—Acylated amino or imino radicals
- C07D277/48—Acylated amino or imino radicals by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof, e.g. carbonylguanidines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/587—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with aliphatic hydrocarbon radicals substituted by 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, said aliphatic radicals being substituted in the alpha-position to the ring by a hetero atom, e.g. with m >= 0, Z being a singly or a doubly bound hetero atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/14—Radicals substituted by singly bound hetero atoms other than halogen
- C07D333/16—Radicals substituted by singly bound hetero atoms other than halogen by oxygen atoms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cephalosporin Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Un procedimiento para preparar derivados de ácido acético de la fórmula**fórmula** en la que R2e es alcohilo inferior, Z es carboxi protegido y X es halógeno, procedimiento que comprende hacer reaccionar un compuesto de la fórmula**fórmula** en la que R2e y Z son cada uno como se han definido antes, con un agente halogenante convencional, tal com halógeno, haluro de sulfurilo, hipohalito o imida N- halogenada, preferiblemente en un disolvente, bajo enfriamiento, a temperatura ambiente, bajo calentamiento moderado o bajo calentamiento. Intenso.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14916/76A GB1576625A (en) | 1976-04-12 | 1976-04-12 | Syn isomer 3,7 disubstituted 3 cephem 4 carboxylic acid compounds and processes for the preparation thereof |
GB2349076 | 1976-06-07 | ||
JP51125826A JPS5941995B2 (ja) | 1976-04-12 | 1976-10-19 | 3,7−ジ置換−3−セフエム−4−カルボン酸化合物およびその塩類およびそれらの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES485064A1 true ES485064A1 (es) | 1980-10-01 |
Family
ID=27257189
Family Applications (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES457191A Expired ES457191A1 (es) | 1976-04-12 | 1977-03-25 | Un procedimiento para preparar el isomero sin de los com- puestos del acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7. |
ES468719A Expired ES468719A1 (es) | 1976-04-12 | 1978-04-12 | Un procedimiento para preparar el isomero sin de los com- puestos del acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7. |
ES477741A Expired ES477741A1 (es) | 1976-04-12 | 1979-02-15 | Un procedimiento para preparar derivados de acido acetico. |
ES485063A Expired ES485063A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar derivados de acido acetico |
ES485064A Expired ES485064A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar derivados de acido acetico |
ES485062A Expired ES485062A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar derivados de acido acetico |
ES485061A Expired ES485061A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar el siomero sin descompuestos de acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7 |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES457191A Expired ES457191A1 (es) | 1976-04-12 | 1977-03-25 | Un procedimiento para preparar el isomero sin de los com- puestos del acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7. |
ES468719A Expired ES468719A1 (es) | 1976-04-12 | 1978-04-12 | Un procedimiento para preparar el isomero sin de los com- puestos del acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7. |
ES477741A Expired ES477741A1 (es) | 1976-04-12 | 1979-02-15 | Un procedimiento para preparar derivados de acido acetico. |
ES485063A Expired ES485063A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar derivados de acido acetico |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES485062A Expired ES485062A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar derivados de acido acetico |
ES485061A Expired ES485061A1 (es) | 1976-04-12 | 1979-10-16 | Un procedimiento para preparar el siomero sin descompuestos de acido 3-cefem-4-carboxilico sustituido en las posiciones 3 y 7 |
Country Status (13)
Country | Link |
---|---|
AR (2) | AR227864A1 (es) |
AT (1) | AT358728B (es) |
CA (1) | CA1337522C (es) |
CH (2) | CH638532A5 (es) |
DE (1) | DE2707565A1 (es) |
DK (1) | DK162391C (es) |
ES (7) | ES457191A1 (es) |
FR (1) | FR2348219A1 (es) |
HU (1) | HU177441B (es) |
IE (1) | IE45597B1 (es) |
MX (1) | MX4985E (es) |
NL (1) | NL191259C (es) |
SE (2) | SE443981B (es) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3192167A (en) * | 1962-09-20 | 1965-06-29 | Ogawa Abiko | Low pressure liquid vaporizer which is electrically heated |
BE878514A (fr) * | 1978-09-04 | 1980-02-29 | Fujisawa Pharmaceutical Co | Procede de preparation de composes d'acide 3-cephem-4-carboxylique a disubstitution en positions 3 et 7, nouveaux produits ainsi obtenus et leur utilisation pour leur activite antibacterienne |
DE2760484C2 (es) * | 1976-04-14 | 1992-12-03 | Takeda Chemical Industries, Ltd., Osaka, Jp | |
FR2381053A1 (fr) * | 1977-02-18 | 1978-09-15 | Roussel Uclaf | Nouvelles oximes derivees de l'acide 3-thiadiazolyl thiomethyl 7-aminothiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
FR2399418A1 (fr) * | 1977-03-14 | 1979-03-02 | Fujisawa Pharmaceutical Co | Procede de preparation d'acides iminoacetiques et nouveaux produits ainsi obtenus, utilises pour la synthese d'acides cepham- ou cephem-carboxyliques |
PH17188A (en) | 1977-03-14 | 1984-06-14 | Fujisawa Pharmaceutical Co | New cephem and cepham compounds and their pharmaceutical compositions and method of use |
SE439312B (sv) * | 1977-03-25 | 1985-06-10 | Roussel Uclaf | Sett att framstella nya oximderivat av 3-acetoximetyl-7-aminotiazolylacetamido cefalosporansyra |
DE2714880A1 (de) * | 1977-04-02 | 1978-10-26 | Hoechst Ag | Cephemderivate und verfahren zu ihrer herstellung |
JPS5498795A (en) * | 1978-01-13 | 1979-08-03 | Takeda Chem Ind Ltd | Cephalosporin derivative and its preparation |
FR2432521A1 (fr) * | 1978-03-31 | 1980-02-29 | Roussel Uclaf | Nouvelles oximes o-substituees derivees de l'acide 7-amino thiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
FR2553770B2 (fr) * | 1978-03-31 | 1986-03-14 | Roussel Uclaf | Nouveaux produits derives de l'acide 2(2-amino thiazol-4-yl) 2-alcoxy-imino acetique substitues sur l'oxime et leur procede de preparation |
FR2421907A1 (fr) * | 1978-04-07 | 1979-11-02 | Roussel Uclaf | Nouvelles cephalosporines derivees de l'acide 7-/2-(2-amino 4-thiazolyl)2-(carboxymethoxyimino/acetamido 3-substitue cephalosporanique, leur procede de preparation et leur application comme medicaments |
FR2438051A2 (fr) * | 1978-10-05 | 1980-04-30 | Roussel Uclaf | Nouvelles oximes derivees de l'acide 3-azidomethyl 7-amino thiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
MC1259A1 (fr) * | 1978-05-30 | 1980-01-14 | Hoffmann La Roche | Derives acyles |
US4284631A (en) * | 1978-07-31 | 1981-08-18 | Fujisawa Pharmaceutical Co., Ltd. | 7-Substituted cephem compounds and pharmaceutical antibacterial compositions containing them |
FR2453161A1 (fr) * | 1978-08-31 | 1980-10-31 | Fujisawa Pharmaceutical Co | Procede de preparation de derives d'acide thiazolylacetique et nouveaux produits ainsi obtenus |
US4341775A (en) * | 1978-09-11 | 1982-07-27 | Fujisawa Pharmaceutical Co., Ltd. | Cephem compounds |
EP0010667B1 (en) * | 1978-10-17 | 1983-07-20 | Fujisawa Pharmaceutical Co., Ltd. | Cepham compounds, pharmaceutical compositions containing them and processes for the preparation thereof and of known cephem compounds |
DE2945248A1 (de) * | 1978-11-13 | 1980-05-22 | Fujisawa Pharmaceutical Co | Cephem-verbindungen, verfahren zu ihrer herstellung und sie enthaltende antibakterielle pharmazeutische mittel |
FR2448543A1 (fr) * | 1979-02-09 | 1980-09-05 | Roussel Uclaf | Nouvelles oximes o-substituees par un radical comportant un ammonium quaternaire et derivees de l'acide 7-amino thiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
FR2461713A1 (fr) * | 1979-07-19 | 1981-02-06 | Roussel Uclaf | Nouvelles alcoyloximes substituees derivees de l'acide 7-(2-amino 4-thiazolyl) acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
FR2462439A1 (fr) * | 1979-07-26 | 1981-02-13 | Roussel Uclaf | Nouveau procede de preparation de produits derives de l'acide 7-/(2-aryl) 2-hydroxyimino acetamido/cephalosporanique |
IL61458A0 (en) * | 1979-12-07 | 1980-12-31 | Erba Farmitalia | N-substituted thiazolyl derivatives of oximino-substituted cephalosporins, their preparation and pharmalceutical compositions containing them |
FR2506307A1 (fr) * | 1981-05-22 | 1982-11-26 | Roussel Uclaf | Nouveaux derives substitues de l'acide 2-(2-amino 4-thiazolyl) 2-hydroxyimino acetique et leur procede de preparation |
US4426528A (en) * | 1982-04-01 | 1984-01-17 | Eli Lilly And Company | Purification of syn-(2-aminothiazol-4-yl)methoxyimino)acetic acid |
FR2532936A1 (fr) * | 1982-09-13 | 1984-03-16 | Roussel Uclaf | Nouveaux derives de l'acide 2-amino-thiazolyl-4-yl acetique comportant une fonction oxime substituee et leur procede de preparation |
GB8324152D0 (en) * | 1983-09-09 | 1983-10-12 | Glaxo Group Ltd | Chemical process |
IT8448798A0 (it) * | 1983-09-12 | 1984-09-05 | Biochemie Gmbh | Procedimento per la preparazione di antibiotici del tipo cefalosporina |
GB2161476B (en) * | 1984-05-25 | 1988-01-27 | Toyama Chemical Co Ltd | 2-aminothiazolyl-2-methoxyimino acetamides and their use in preparing cephalosporins |
ATE110386T1 (de) * | 1986-04-14 | 1994-09-15 | Banyu Pharma Co Ltd | Cephalosporinderivate, verfahren zu ihrer herstellung und antibakterielle präparate. |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1399086A (en) * | 1971-05-14 | 1975-06-25 | Glaxo Lab Ltd | Cephalosporin compounds |
NZ176206A (en) * | 1973-12-25 | 1978-03-06 | Takeda Chemical Industries Ltd | Cephalosporins |
DK154939C (da) * | 1974-12-19 | 1989-06-12 | Takeda Chemical Industries Ltd | Analogifremgangsmaade til fremstilling af thiazolylacetamido-cephemforbindelser eller farmaceutisk acceptable salte eller estere deraf |
PH15487A (en) * | 1975-02-04 | 1983-01-31 | Fujisawa Pharmaceutical Co | 7((2-hydroxyamino-2-disubstituted phenyl-acetamido)-)3-heterocyclithio-3-cephem-4-carboxylic acids |
SE440655B (sv) * | 1976-01-23 | 1985-08-12 | Roussel Uclaf | Sett att framstella nya oximderivat av 7-amino-tiazolyl-acetamido-cefalosporansyra |
FR2346014A1 (fr) * | 1976-01-23 | 1977-10-28 | Roussel Uclaf | Nouvelles oximes derivees de l'acide 7-amino thiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
DE2760123C2 (de) * | 1976-01-23 | 1986-04-30 | Roussel-Uclaf, Paris | 7-Aminothiazolyl-syn-oxyiminoacetamidocephalosporansäuren, ihre Herstellung und sie enthaltende pharmazeutische Zusammensetzungen |
FR2345153A1 (fr) * | 1976-03-25 | 1977-10-21 | Roussel Uclaf | Nouvelles alcoyloximes derivees de l'acide 7-amino thiazolyl acetamido cephalosporanique, leur procede de preparation et leur application comme medicaments |
DE2760484C2 (es) * | 1976-04-14 | 1992-12-03 | Takeda Chemical Industries, Ltd., Osaka, Jp |
-
1977
- 1977-02-21 DK DK075077A patent/DK162391C/da active
- 1977-02-22 DE DE19772707565 patent/DE2707565A1/de active Granted
- 1977-02-22 SE SE7701964A patent/SE443981B/xx not_active IP Right Cessation
- 1977-02-23 CA CA000272430A patent/CA1337522C/en not_active Expired - Lifetime
- 1977-02-25 CH CH244777A patent/CH638532A5/de not_active IP Right Cessation
- 1977-02-28 HU HU77FU348A patent/HU177441B/hu unknown
- 1977-03-01 IE IE440/77A patent/IE45597B1/en not_active IP Right Cessation
- 1977-03-02 AT AT138477A patent/AT358728B/de not_active IP Right Cessation
- 1977-03-10 FR FR7707173A patent/FR2348219A1/fr active Granted
- 1977-03-25 ES ES457191A patent/ES457191A1/es not_active Expired
- 1977-04-11 MX MX775624U patent/MX4985E/es unknown
- 1977-04-12 NL NL7703969A patent/NL191259C/xx not_active IP Right Cessation
- 1977-04-20 AR AR257178A patent/AR227864A1/es active
-
1978
- 1978-03-27 AR AR271541A patent/AR223143A1/es active
- 1978-04-12 ES ES468719A patent/ES468719A1/es not_active Expired
-
1979
- 1979-02-15 ES ES477741A patent/ES477741A1/es not_active Expired
- 1979-10-16 ES ES485063A patent/ES485063A1/es not_active Expired
- 1979-10-16 ES ES485064A patent/ES485064A1/es not_active Expired
- 1979-10-16 ES ES485062A patent/ES485062A1/es not_active Expired
- 1979-10-16 ES ES485061A patent/ES485061A1/es not_active Expired
-
1983
- 1983-07-26 CH CH409583A patent/CH643557A5/de not_active IP Right Cessation
- 1983-08-17 SE SE8304465A patent/SE457351B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AR227864A1 (es) | 1982-12-30 |
NL191259B (nl) | 1994-11-16 |
ES485061A1 (es) | 1980-06-16 |
DE2707565A1 (de) | 1978-02-23 |
IE45597L (en) | 1977-10-12 |
FR2348219A1 (fr) | 1977-11-10 |
CH638532A5 (de) | 1983-09-30 |
IE45597B1 (en) | 1982-10-06 |
SE8304465D0 (sv) | 1983-08-17 |
ES485062A1 (es) | 1980-06-16 |
SE443981B (sv) | 1986-03-17 |
NL191259C (nl) | 1995-04-18 |
AR223143A1 (es) | 1981-07-31 |
CH643557A5 (en) | 1984-06-15 |
HU177441B (en) | 1981-10-28 |
NL7703969A (nl) | 1977-10-14 |
CA1337522C (en) | 1995-11-07 |
SE7701964L (sv) | 1977-10-13 |
DK162391B (da) | 1991-10-21 |
MX4985E (es) | 1983-01-31 |
DK75077A (da) | 1977-10-13 |
SE457351B (sv) | 1988-12-19 |
ES457191A1 (es) | 1978-08-16 |
ES468719A1 (es) | 1979-10-16 |
FR2348219B1 (es) | 1982-12-03 |
ES485063A1 (es) | 1980-06-16 |
ATA138477A (de) | 1980-02-15 |
ES477741A1 (es) | 1980-04-01 |
DK162391C (da) | 1992-03-09 |
AT358728B (de) | 1980-09-25 |
DE2707565C2 (es) | 1988-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES485064A1 (es) | Un procedimiento para preparar derivados de acido acetico | |
ES477799A1 (es) | Procedimiento para preparar 6-fenil-1,2,4-triazolo-(4,3-b)- piridazinas. | |
GB828393A (en) | New phenthiazine derivatives and processes for their preparation | |
GB1492717A (en) | Process for preparing a methyl-isoxazolyl compound | |
ES8205198A1 (es) | Mejoras en un procedimiento mejorado para preparar 2-cloro- sulfinilazetidin-4-ona. | |
JPS5359663A (en) | 2-halogeno methyl indole derivatives and process for praparation of the same | |
IT1008711B (it) | Procedimento per preparare alcool m fenossilbenzilico e suoi derivati | |
ES385634A1 (es) | Procedimiento para la preparacion de n - cicloalcohil - a- ril - amino - imidazolinas-(2) sustituidas. | |
ES454280A1 (es) | Procedimiento para preparar 1-(2-(beta-naftiloxi)-etil)-3-metilpirazolona-(5). | |
GB1479156A (en) | 11,12-secoprostaglandins | |
SE7701845L (sv) | Forfarande for framstellning av l-sulfonyl-5(6)-substituerade bensimidazoler | |
ES344656A1 (es) | Un procedimiento para la preparacion de un derivado de aci-do 3-indolilacetico. | |
ES483699A1 (es) | Un procedimiento para la preparacion del derivado acido 1h- indazol-3-ilacetico | |
ES450369A1 (es) | Nuevo procedimiento para la obtencion del acido 2-(3-benzo- il-fenil)-propionico. | |
ES428449A1 (es) | Procedimiento para la obtencion de un nuevo derivado de la 2-piridona. | |
ES8506045A1 (es) | Procedimiento para la preparacion de 17-halogenoetinilesteroides | |
GB2011897A (en) | Process for Preparing Anthranylaldehyde Derivatives | |
ES446755A1 (es) | Procedimiento de obtencion de un nuevo derivado de vincami- na. | |
ES411993A1 (es) | Un procedimiento de preparacion de derivados de ceto-acidosaromaticos. | |
ES482576A3 (es) | Procedimiento para la fabricacion de 1,4-dioxido de 3-(2- quinoxalinilmetilen) carbazato de metilo. | |
ES439019A1 (es) | Procedimiento para la preparacion de fenil-3, 4-dicloropi- rrol-2, 5-diona, 1-sustituida. | |
ES469533A1 (es) | Un procedimiento de preparacion de derivados de 4-(cicloal- quilenimino sulfonil)-benzoico. | |
ES8201139A1 (es) | Procedimiento mejorado para la preparacion de derivados de carbostirilo | |
ES8201592A1 (es) | Procedimiento para preparar derivados de gem-difosfonato | |
JPS54106498A (en) | Carbostyril derivative |