ES429338A1 - Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding)

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Publication number
ES429338A1
ES429338A1 ES0429338A ES429338A ES429338A1 ES 429338 A1 ES429338 A1 ES 429338A1 ES 0429338 A ES0429338 A ES 0429338A ES 429338 A ES429338 A ES 429338A ES 429338 A1 ES429338 A1 ES 429338A1
Authority
ES
Spain
Prior art keywords
alpha
steroid
acetate
preparation
oliona
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
ES0429338A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to ES0429338A priority Critical patent/ES429338A1/en
Publication of ES429338A1 publication Critical patent/ES429338A1/en
Expired legal-status Critical Current

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Abstract

Process for the preparation of steroid 21-acetate 16 α, 17 α -cyclopentylidenedioxy-3,20-dione, characterized in that it comprises reacting 9 α -fluor 11 β, 16 β, 17,21-tetrahydroxy-1,4-pregnadiene-3,20-dione with perchloric acid and cyclopentane, treat the reaction product with pyridine and acetic anhydride, and recover the desired product.
ES0429338A 1974-08-17 1974-08-17 Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding) Expired ES429338A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0429338A ES429338A1 (en) 1974-08-17 1974-08-17 Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0429338A ES429338A1 (en) 1974-08-17 1974-08-17 Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES429338A1 true ES429338A1 (en) 1977-02-01

Family

ID=59033094

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0429338A Expired ES429338A1 (en) 1974-08-17 1974-08-17 Procedure for the preparation of the steroid 21-acetate of 16-alpha, 17-alpha-ciclopentilidendioxi-3,20-oliona (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES429338A1 (en)

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