ES297535A1 - A procedure for the preparation of 16-methylene-steroids (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the preparation of 16-methylene-steroids (Machine-translation by Google Translate, not legally binding)

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Publication number
ES297535A1
ES297535A1 ES297535A ES297535A ES297535A1 ES 297535 A1 ES297535 A1 ES 297535A1 ES 297535 A ES297535 A ES 297535A ES 297535 A ES297535 A ES 297535A ES 297535 A1 ES297535 A1 ES 297535A1
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ES
Spain
Prior art keywords
translation
formula
preparation
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
ES297535A
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.)
Organon NV
Original Assignee
Organon NV
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 Organon NV filed Critical Organon NV
Publication of ES297535A1 publication Critical patent/ES297535A1/en
Expired legal-status Critical Current

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Abstract

A process for the preparation of 16-methylene steroids characterized in that new compounds of the general formula are prepared: ** (See formula) ** wherein R1 = H2 or O, R2 = H or an acyl group, R3 = H or a saturated or unsaturated alkyl group with 1 to 4 carbon atoms, starting from a compound of the general formula: ** (See formula) ** where ring A has one of the following configurations ** (See formula) ** and in that the 3-position substituent, if any, in the starting products, can be temporarily protected by converting the starting product by a known method into a delta4-3-keto-steroid, or a delta4-3-dexoxo-steroid , if necessary, and introducing the substituents in position 17, as indicated in the formula of the final products, by reduction of the 17-keto group, or by an alcohol reaction followed, if desired, by esterification of group 17- hydroxyl, in which the reaction steps can be carried out in any order. (Machine-translation by Google Translate, not legally binding)
ES297535A 1963-03-13 1964-03-12 A procedure for the preparation of 16-methylene-steroids (Machine-translation by Google Translate, not legally binding) Expired ES297535A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL290170 1963-03-13

Publications (1)

Publication Number Publication Date
ES297535A1 true ES297535A1 (en) 1964-08-16

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ID=66615180

Family Applications (1)

Application Number Title Priority Date Filing Date
ES297535A Expired ES297535A1 (en) 1963-03-13 1964-03-12 A procedure for the preparation of 16-methylene-steroids (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES297535A1 (en)

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