CA1218650A - Process for the synthesis of pyrido-imidazo- rifamycins - Google Patents

Process for the synthesis of pyrido-imidazo- rifamycins

Info

Publication number
CA1218650A
CA1218650A CA000491511A CA491511A CA1218650A CA 1218650 A CA1218650 A CA 1218650A CA 000491511 A CA000491511 A CA 000491511A CA 491511 A CA491511 A CA 491511A CA 1218650 A CA1218650 A CA 1218650A
Authority
CA
Canada
Prior art keywords
alkyl
formula
carbamoyl
methyl
rifamycin
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
Application number
CA000491511A
Other languages
English (en)
French (fr)
Inventor
Silvano Piani
Raul R. Alpino
Manuela Campana
Gian F. Tamagnone
Vincenzo Cannata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfa Farmaceutici SpA
Original Assignee
Alfa Farmaceutici SpA
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 Alfa Farmaceutici SpA filed Critical Alfa Farmaceutici SpA
Application granted granted Critical
Publication of CA1218650A publication Critical patent/CA1218650A/en
Expired legal-status Critical Current

Links

Landscapes

  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CA000491511A 1984-09-26 1985-09-25 Process for the synthesis of pyrido-imidazo- rifamycins Expired CA1218650A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3581A/84 1984-09-26
IT03581/84A IT1199413B (it) 1984-09-26 1984-09-26 Processo per la preparazione di pirido-imidazo-rifamicine

Publications (1)

Publication Number Publication Date
CA1218650A true CA1218650A (en) 1987-03-03

Family

ID=11110114

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000491511A Expired CA1218650A (en) 1984-09-26 1985-09-25 Process for the synthesis of pyrido-imidazo- rifamycins

Country Status (10)

Country Link
AR (1) AR243892A1 (no)
AT (1) AT387020B (no)
CA (1) CA1218650A (no)
DK (1) DK161706C (no)
ES (1) ES8604735A1 (no)
FI (1) FI83875C (no)
GR (1) GR852312B (no)
IT (1) IT1199413B (no)
NO (1) NO165107C (no)
PT (1) PT81198B (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7709634B2 (en) 2007-09-20 2010-05-04 Apotex Pharmachem Inc. Amorphous form of rifaximin and processes for its preparation
US7902206B2 (en) 2003-11-07 2011-03-08 Alfa Wassermann, S.P.A. Polymorphic forms α, β and γ of rifaximin
US7906542B2 (en) 2004-11-04 2011-03-15 Alfa Wassermann, S.P.A. Pharmaceutical compositions comprising polymorphic forms α, β, and γ of rifaximin
US7915275B2 (en) 2003-11-07 2011-03-29 Alfa Wassermann, S.P.A. Use of polymorphic forms of rifaximin for medical preparations
US8193196B2 (en) 2005-03-03 2012-06-05 Alfa Wassermann, S.P.A. Polymorphous forms of rifaximin, processes for their production and use thereof in the medicinal preparations
US9452157B2 (en) 2012-07-06 2016-09-27 Alfa Wassermann S.P.A Pharmaceutical compositions comprising rifaximin and amino acids, preparation methods and use thereof
US10428086B2 (en) 2014-05-12 2019-10-01 Alfasigma S.P.A. Solvated crystal form of rifaximin, production, compositions and uses thereof
US10556915B2 (en) 2014-03-31 2020-02-11 Euticals Spa Polymorphic mixture of Rifaximin and its use for the preparation of solid formulations

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8404704B2 (en) 2003-11-07 2013-03-26 Alfa Wassermann S.P.A. Use of polymorphic forms of rifaximin for medical preparations
US8158781B2 (en) 2003-11-07 2012-04-17 Alfa Wassermann, S.P.A. Polymorphic forms α, β and γ of rifaximin
US7902206B2 (en) 2003-11-07 2011-03-08 Alfa Wassermann, S.P.A. Polymorphic forms α, β and γ of rifaximin
US7915275B2 (en) 2003-11-07 2011-03-29 Alfa Wassermann, S.P.A. Use of polymorphic forms of rifaximin for medical preparations
US8173801B2 (en) 2003-11-07 2012-05-08 Alfa Wassermann, S.P.A. Processes for the production of polymorphic forms of rifaximin
US8158644B2 (en) 2003-11-07 2012-04-17 Alfa Wassermann, S.P.A. Pharmaceutical compositions comprising polymorphic forms α, β, and γ of rifaximin
US7906542B2 (en) 2004-11-04 2011-03-15 Alfa Wassermann, S.P.A. Pharmaceutical compositions comprising polymorphic forms α, β, and γ of rifaximin
US8518949B2 (en) 2005-03-03 2013-08-27 Alfa Wassermann S.P.A. Polymorphous forms of rifaximin, processes for their production and use thereof in the medicinal preparations
US8193196B2 (en) 2005-03-03 2012-06-05 Alfa Wassermann, S.P.A. Polymorphous forms of rifaximin, processes for their production and use thereof in the medicinal preparations
US10703763B2 (en) 2005-03-03 2020-07-07 Alfasigma S.P.A. Polymorphous forms of rifaximin, processes for their production and use thereof in the medicinal preparations
US7709634B2 (en) 2007-09-20 2010-05-04 Apotex Pharmachem Inc. Amorphous form of rifaximin and processes for its preparation
US9452157B2 (en) 2012-07-06 2016-09-27 Alfa Wassermann S.P.A Pharmaceutical compositions comprising rifaximin and amino acids, preparation methods and use thereof
US10556915B2 (en) 2014-03-31 2020-02-11 Euticals Spa Polymorphic mixture of Rifaximin and its use for the preparation of solid formulations
US10745415B2 (en) 2014-03-31 2020-08-18 Amri Italy S.R.L. Polymorphic mixture of Rifaximin and its use for the preparation of solid formulations
US10961257B2 (en) 2014-03-31 2021-03-30 Amri Italy S.R.L. Polymorphic mixture of rifaximin and its use for the preparation of solid formulations
US11739099B2 (en) 2014-03-31 2023-08-29 Curia Ip Holdings, Llc Polymorphic mixture of Rifaximin and its use for the preparation of solid formulations
US10428086B2 (en) 2014-05-12 2019-10-01 Alfasigma S.P.A. Solvated crystal form of rifaximin, production, compositions and uses thereof

Also Published As

Publication number Publication date
GR852312B (no) 1986-01-24
IT8403581A0 (it) 1984-09-26
DK161706B (da) 1991-08-05
IT1199413B (it) 1988-12-30
ES8604735A1 (es) 1986-02-16
PT81198B (pt) 1987-09-30
ATA279785A (de) 1988-04-15
ES547265A0 (es) 1986-02-16
AR243892A1 (es) 1993-09-30
DK434985A (da) 1986-03-27
DK161706C (da) 1992-01-20
FI83875B (fi) 1991-05-31
NO165107C (no) 1990-12-27
PT81198A (en) 1985-10-01
NO853771L (no) 1986-04-01
FI853683A0 (fi) 1985-09-25
NO165107B (no) 1990-09-17
FI83875C (fi) 1991-09-10
DK434985D0 (da) 1985-09-25
AT387020B (de) 1988-11-25
FI853683L (fi) 1986-03-27

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Legal Events

Date Code Title Description
MKEX Expiry