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GB1381992A - Method of producing rifamycin o from fermentation broths - Google Patents

Method of producing rifamycin o from fermentation broths

Info

Publication number
GB1381992A
GB1381992A GB915373A GB915373A GB1381992A GB 1381992 A GB1381992 A GB 1381992A GB 915373 A GB915373 A GB 915373A GB 915373 A GB915373 A GB 915373A GB 1381992 A GB1381992 A GB 1381992A
Authority
GB
United Kingdom
Prior art keywords
rifamycin
fermentation broths
producing
producing rifamycin
sodium
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
GB915373A
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
Application filed by ARCHIFAR IND CHIM TRENTINO filed Critical ARCHIFAR IND CHIM TRENTINO
Priority to GB915373A priority Critical patent/GB1381992A/en
Publication of GB1381992A publication Critical patent/GB1381992A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic 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
    • C07D498/08—Bridged systems

Landscapes

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

Abstract

1381992 Producing Rifamycin O ARCHIFAR INDUSTRIE CHIMICHE DEL TRENTINO SpA 24 Feb 1973 9153/73 Heading C2C Rifamycin O is produced by subjecting a filtered fermentation broth containing Rifamycin B to oxidation with sodium nitrate, sodium persulphate or hydrogen peroxide at room temperature and a pH of 4 to 7À5 and collecting the resulting precipitated Rifamycin O.
GB915373A 1973-02-24 1973-02-24 Method of producing rifamycin o from fermentation broths Expired GB1381992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB915373A GB1381992A (en) 1973-02-24 1973-02-24 Method of producing rifamycin o from fermentation broths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB915373A GB1381992A (en) 1973-02-24 1973-02-24 Method of producing rifamycin o from fermentation broths

Publications (1)

Publication Number Publication Date
GB1381992A true GB1381992A (en) 1975-01-29

Family

ID=9866419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB915373A Expired GB1381992A (en) 1973-02-24 1973-02-24 Method of producing rifamycin o from fermentation broths

Country Status (1)

Country Link
GB (1) GB1381992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117447486A (en) * 2023-10-27 2024-01-26 扬州市三药制药有限公司 A kind of preparation method of rifaximin intermediate rifamycin O

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117447486A (en) * 2023-10-27 2024-01-26 扬州市三药制药有限公司 A kind of preparation method of rifaximin intermediate rifamycin O

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee