CA1102798A - Production of maytansinoids - Google Patents

Production of maytansinoids

Info

Publication number
CA1102798A
CA1102798A CA324,030A CA324030A CA1102798A CA 1102798 A CA1102798 A CA 1102798A CA 324030 A CA324030 A CA 324030A CA 1102798 A CA1102798 A CA 1102798A
Authority
CA
Canada
Prior art keywords
maytansinol
process according
alkyl
formula
acylation
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
CA324,030A
Other languages
English (en)
French (fr)
Inventor
Naoto Hashimoto
Toyokazu Kishi
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries Ltd
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 claimed from JP3464478A external-priority patent/JPS54128597A/ja
Priority claimed from JP4394678A external-priority patent/JPS54135796A/ja
Priority claimed from JP12598978A external-priority patent/JPS5553294A/ja
Application filed by Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Application granted granted Critical
Publication of CA1102798A publication Critical patent/CA1102798A/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
    • C07D498/12—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 three hetero rings
    • C07D498/14—Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
CA324,030A 1978-03-24 1979-03-23 Production of maytansinoids Expired CA1102798A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP34644/1978 1978-03-24
JP3464478A JPS54128597A (en) 1978-03-24 1978-03-24 Preparation of ansamytocin
JP43946/1978 1978-04-13
JP4394678A JPS54135796A (en) 1978-04-13 1978-04-13 Preparation of ansamytocins
JP125989/1978 1978-10-12
JP12598978A JPS5553294A (en) 1978-10-12 1978-10-12 Novel ansamitocin derivative and its preparation

Publications (1)

Publication Number Publication Date
CA1102798A true CA1102798A (en) 1981-06-09

Family

ID=27288484

Family Applications (1)

Application Number Title Priority Date Filing Date
CA324,030A Expired CA1102798A (en) 1978-03-24 1979-03-23 Production of maytansinoids

Country Status (5)

Country Link
US (1) US4265814A (OSRAM)
CA (1) CA1102798A (OSRAM)
DE (1) DE2911248A1 (OSRAM)
FR (1) FR2431498A1 (OSRAM)
GB (1) GB2017101B (OSRAM)

Families Citing this family (277)

* Cited by examiner, † Cited by third party
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JPS55102583A (en) * 1979-01-31 1980-08-05 Takeda Chem Ind Ltd 20-acyloxy-20-demethylmaytansinoid compound
JPS55164685A (en) * 1979-06-08 1980-12-22 Takeda Chem Ind Ltd Novel maytansinoid compound and its preparation
JPS55164686A (en) * 1979-06-11 1980-12-22 Takeda Chem Ind Ltd Novel maytansinoid compound and its preparation
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