ES265292A1 - Procedure for preparing 4-hydroxy-3-ceto-4-androsteno (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for preparing 4-hydroxy-3-ceto-4-androsteno (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES265292A1
ES265292A1 ES0265292A ES265292A ES265292A1 ES 265292 A1 ES265292 A1 ES 265292A1 ES 0265292 A ES0265292 A ES 0265292A ES 265292 A ES265292 A ES 265292A ES 265292 A1 ES265292 A1 ES 265292A1
Authority
ES
Spain
Prior art keywords
translation
hydroxy
preparing
machine
legally binding
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
ES0265292A
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.)
Pfizer Italia SRL
Original Assignee
Farmaceutici Italia SpA
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 Farmaceutici Italia SpA filed Critical Farmaceutici Italia SpA
Publication of ES265292A1 publication Critical patent/ES265292A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J63/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms
    • 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)
  • Steroid Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process for preparing a 4-hydroxy-3-keto-4-androstene, which comprises treating the corresponding 4,5-epoxy-3-keto-androstane, dissolved in an organic solvent, with an aqueous solution of an alkali metal hydroxide and/or a quaternary ammonium hydroxide, at a temperature of 50º C to 150º C, for 0.5 to 5 hours, the molecular ratio of hydroxide: steroid being from 0.5 to 30. (Machine-translation by Google Translate, not legally binding)
ES0265292A 1960-03-01 1961-02-28 Procedure for preparing 4-hydroxy-3-ceto-4-androsteno (Machine-translation by Google Translate, not legally binding) Expired ES265292A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT355360 1960-03-01

Publications (1)

Publication Number Publication Date
ES265292A1 true ES265292A1 (en) 1961-08-16

Family

ID=11109567

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0265292A Expired ES265292A1 (en) 1960-03-01 1961-02-28 Procedure for preparing 4-hydroxy-3-ceto-4-androsteno (Machine-translation by Google Translate, not legally binding)

Country Status (3)

Country Link
BR (1) BR6127171D0 (en)
CH (1) CH393314A (en)
ES (1) ES265292A1 (en)

Also Published As

Publication number Publication date
CH393314A (en) 1965-06-15
BR6127171D0 (en) 1973-06-12

Similar Documents

Publication Publication Date Title
BE586803A (en) Process for preparing 1,3-diaryl-5-amino-pyridazones- (6).
ES258837A1 (en) Powderless etching bath and method of etching plates therewith
ES265292A1 (en) Procedure for preparing 4-hydroxy-3-ceto-4-androsteno (Machine-translation by Google Translate, not legally binding)
ES282218A1 (en) A procedure to produce the hydrofuside acid compound (Machine-translation by Google Translate, not legally binding)
ES389170A1 (en) Process for preparing n-alkyl-dimethylamines
DK126683B (en) Process for the preparation of injectable, durable iron (III) hydroxide-polymaltose complexes or aqueous solutions thereof.
ES266618A1 (en) Procedure for the preparation of a salt of phenyltilbarbituric acid (Machine-translation by Google Translate, not legally binding)
ES250291A1 (en) A procedure for preparing an erythromycin sulfate or erythromycin b (Machine-translation by Google Translate, not legally binding)
ES280713A1 (en) Procedure for the preparation of alcanforated derivatives of 2-aminotiazoline (Machine-translation by Google Translate, not legally binding)
ES254157A1 (en) Procedure for the preparation of liquids for metal treatment (Machine-translation by Google Translate, not legally binding)
ES229261A1 (en) A procedure for the preparation of new azocompuestos (Machine-translation by Google Translate, not legally binding)
BE597542A (en) Process for preparing dealpha, beta-di- [imidazyl- (2)] - ethylenes.
ES268098A3 (en) A method for the preparation of galacturonato of quinidina or poligalacturonato de quinidina (Machine-translation by Google Translate, not legally binding)
ES252392A1 (en) Procedure for obtaining caprolactama (Machine-translation by Google Translate, not legally binding)
ES263462A2 (en) Procedure for the preparation of a new derivative of iminodibencilo (Machine-translation by Google Translate, not legally binding)
ES229696A1 (en) A procredimiento for the preparation of N-sulfanilil-N-butil-carbamida (Machine-translation by Google Translate, not legally binding)
ES256785A1 (en) Procedure for the preparation of an N-sulfanililurea (Machine-translation by Google Translate, not legally binding)
ES250349A1 (en) A procedure for the dissolution of metallic copper (Machine-translation by Google Translate, not legally binding)
ES276959A1 (en) Procedure for the preparation of atarºxic compound (Machine-translation by Google Translate, not legally binding)
ES238577A1 (en) Procedure for obtaining an anti-inflammatory compound (Machine-translation by Google Translate, not legally binding)
ES309491A3 (en) Procedure for preparation of vinylloxiarene-sulphonic derivatives. (Machine-translation by Google Translate, not legally binding)
ES240385A1 (en) Process for the production of polyamides almost or fully aromatic (Machine-translation by Google Translate, not legally binding)
ES226646A1 (en) An industrial procedure for the pigmentation of metals (Machine-translation by Google Translate, not legally binding)
ES258375A1 (en) Procedure for the manufacture of lustic extracts (Machine-translation by Google Translate, not legally binding)
ES269781A1 (en) A procedure for obtaining plutonium in the form of concentrated solution (Machine-translation by Google Translate, not legally binding)