FR2221517A1 - Recovery of rieamycin from broths - by oxidn to an insol form - Google Patents

Recovery of rieamycin from broths - by oxidn to an insol form

Info

Publication number
FR2221517A1
FR2221517A1 FR7309816A FR7309816A FR2221517A1 FR 2221517 A1 FR2221517 A1 FR 2221517A1 FR 7309816 A FR7309816 A FR 7309816A FR 7309816 A FR7309816 A FR 7309816A FR 2221517 A1 FR2221517 A1 FR 2221517A1
Authority
FR
France
Prior art keywords
insol
rieamycin
oxidn
broths
recovery
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.)
Granted
Application number
FR7309816A
Other languages
French (fr)
Other versions
FR2221517B1 (en
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.)
ARCHIFAR IND CHIM TRENTINO
Original Assignee
ARCHIFAR IND CHIM TRENTINO
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
Priority to BE128149A priority Critical patent/BE796018A/en
Application filed by ARCHIFAR IND CHIM TRENTINO filed Critical ARCHIFAR IND CHIM TRENTINO
Priority to FR7309816A priority patent/FR2221517A1/en
Publication of FR2221517A1 publication Critical patent/FR2221517A1/en
Application granted granted Critical
Publication of FR2221517B1 publication Critical patent/FR2221517B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D498/00Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/08Bridged systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D498/00Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/12Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains three hetero rings
    • C07D498/20Spiro-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Rifamycin B in a fermentation broth is oxidised with NaNO2, NaS2O3 or H2O at 15-25 degrees C and pH 4-75 and the insol rifamycin O recovered. An example uses NaNO2 to give rifamycin O of 95% purity/after recrystallisation) in substantially quantitative yields.
FR7309816A 1973-03-14 1973-03-14 Recovery of rieamycin from broths - by oxidn to an insol form Granted FR2221517A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE128149A BE796018A (en) 1973-03-14 1973-02-27 PROCESS FOR THE EXTRACTION AND ISOLATION OF RIFAMYCINS
FR7309816A FR2221517A1 (en) 1973-03-14 1973-03-14 Recovery of rieamycin from broths - by oxidn to an insol form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7309816A FR2221517A1 (en) 1973-03-14 1973-03-14 Recovery of rieamycin from broths - by oxidn to an insol form

Publications (2)

Publication Number Publication Date
FR2221517A1 true FR2221517A1 (en) 1974-10-11
FR2221517B1 FR2221517B1 (en) 1977-08-05

Family

ID=9116527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309816A Granted FR2221517A1 (en) 1973-03-14 1973-03-14 Recovery of rieamycin from broths - by oxidn to an insol form

Country Status (2)

Country Link
BE (1) BE796018A (en)
FR (1) FR2221517A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181228B (en) * 1959-08-07 1964-11-12 Lepetit Spa Process for the preparation of rifamycin O and its monoacetyl derivative

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181228B (en) * 1959-08-07 1964-11-12 Lepetit Spa Process for the preparation of rifamycin O and its monoacetyl derivative

Also Published As

Publication number Publication date
FR2221517B1 (en) 1977-08-05
BE796018A (en) 1973-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse