ES307699A1 - PROCEDURE FOR THE PRODUCTION OF HETEROCICLIC COMPOUNDS - Google Patents

PROCEDURE FOR THE PRODUCTION OF HETEROCICLIC COMPOUNDS

Info

Publication number
ES307699A1
ES307699A1 ES0307699A ES307699A ES307699A1 ES 307699 A1 ES307699 A1 ES 307699A1 ES 0307699 A ES0307699 A ES 0307699A ES 307699 A ES307699 A ES 307699A ES 307699 A1 ES307699 A1 ES 307699A1
Authority
ES
Spain
Prior art keywords
formula
hydroxyl radical
signifies
hydrogen atom
radical
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
ES0307699A
Other languages
Spanish (es)
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 CH1020163A external-priority patent/CH424789A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of ES307699A1 publication Critical patent/ES307699A1/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
    • C07J75/00—Processes for the preparation of steroids in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cephalosporin Compounds (AREA)
  • Steroid Compounds (AREA)

Abstract

"Procedure for the production of heterocyclic compounds" of formula Ia, **(See formula)** wherein R1 signifies a (C2-C4) acyl radical, R2 signifies a hydrogen atom or a (C1-C4) phenyl or 1-methyl-4-piperidyl radical, R3 signifies a hydrogen atom or the hydroxyl radical and R4 means a hydrogen atom or the hydroxyl radical, characterized in that a cetal derivative of a compound of formula IIa is condensed, **(See formula)** in which R3 and R4 have the aforementioned meanings, with a compound of formula III, R2HN-NH2, in which R2 has the aforementioned meaning, the resulting aminopyrazole steroid is acylated in position 1', provided that any free hydroxyl radical present at position 21 is also acylated, the resulting acetamidopyrazole steroid is treated with a dilute organic or inorganic acid to remove the cephalic group and, should a free hydroxyl radical result at position 21, it is reacted with an acylating agent (C2-C4) to acylate at said position 21. (Machine-translation by Google Translate, not legally binding)
ES0307699A 1963-08-19 1964-12-30 PROCEDURE FOR THE PRODUCTION OF HETEROCICLIC COMPOUNDS Expired ES307699A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH1020163A CH424789A (en) 1963-08-19 1963-08-19 Process for the preparation of new heterocyclic compounds
CH106664 1964-01-30
CH291164 1964-03-06
CH436564 1964-04-07
CH657664 1964-05-20

Publications (1)

Publication Number Publication Date
ES307699A1 true ES307699A1 (en) 1965-07-01

Family

ID=27508923

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0307699A Expired ES307699A1 (en) 1963-08-19 1964-12-30 PROCEDURE FOR THE PRODUCTION OF HETEROCICLIC COMPOUNDS

Country Status (3)

Country Link
BE (1) BE651926A (en)
ES (1) ES307699A1 (en)
NL (1) NL6409415A (en)

Also Published As

Publication number Publication date
NL6409415A (en) 1965-02-22
BE651926A (en) 1965-02-17

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