GB1356373A - Method of preparing a 6alpha21-difluoro-20-keto-pregnane - Google Patents

Method of preparing a 6alpha21-difluoro-20-keto-pregnane

Info

Publication number
GB1356373A
GB1356373A GB1873372A GB1873372A GB1356373A GB 1356373 A GB1356373 A GB 1356373A GB 1873372 A GB1873372 A GB 1873372A GB 1873372 A GB1873372 A GB 1873372A GB 1356373 A GB1356373 A GB 1356373A
Authority
GB
United Kingdom
Prior art keywords
difluoro
keto
pregnanes
alkyl
alkaryl
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
GB1873372A
Other languages
English (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.)
Roche Palo Alto LLC
Original Assignee
Roche Palo Alto LLC
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 Roche Palo Alto LLC filed Critical Roche Palo Alto LLC
Publication of GB1356373A publication Critical patent/GB1356373A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005—Oxygen-containing hetero ring
    • C07J71/0026—Oxygen-containing hetero ring cyclic ketals
    • C07J71/0031—Oxygen-containing hetero ring cyclic ketals at positions 16, 17

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Steroid Compounds (AREA)
GB1873372A 1971-05-26 1972-04-21 Method of preparing a 6alpha21-difluoro-20-keto-pregnane Expired GB1356373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14721871A 1971-05-26 1971-05-26

Publications (1)

Publication Number Publication Date
GB1356373A true GB1356373A (en) 1974-06-12

Family

ID=22520702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1873372A Expired GB1356373A (en) 1971-05-26 1972-04-21 Method of preparing a 6alpha21-difluoro-20-keto-pregnane

Country Status (7)

Country Link
US (1) US3728335A (enExample)
CA (1) CA949555A (enExample)
CH (2) CH596236A5 (enExample)
FR (1) FR2138922B1 (enExample)
GB (1) GB1356373A (enExample)
NL (1) NL7207165A (enExample)
SE (2) SE384513B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2141492C (en) * 1994-04-28 1999-07-27 Bruce B. Randolph Transportation of hydrogen fluoride

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226383A (en) * 1959-05-18 1965-12-28 Syntex Corp 21-desoxy-16,17-cyclic acetals

Also Published As

Publication number Publication date
NL7207165A (enExample) 1972-11-28
SE7506748L (sv) 1975-06-12
CA949555A (en) 1974-06-18
CH601349A5 (enExample) 1978-07-14
FR2138922B1 (enExample) 1975-10-31
SE384513B (sv) 1976-05-10
DE2225324A1 (de) 1972-12-07
FR2138922A1 (enExample) 1973-01-05
DE2225324B2 (de) 1977-03-10
US3728335A (en) 1973-04-17
CH596236A5 (enExample) 1978-03-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee