Über Steroide und Sexualhormone. 222. Mitteilung. 11,20‐Dihydroxy‐18,20‐cyclo‐pregnan‐Verbindungen | Zendy

Wehrli H. | Zendy; Cereghetti M. | Zendy; Schaffner K. | Zendy; Urech J. | Zendy; Vischer E. | Zendy

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Über Steroide und Sexualhormone. 222. Mitteilung. 11,20‐Dihydroxy‐18,20‐cyclo‐pregnan‐Verbindungen

Author(s) -

Wehrli H.,

Cereghetti M.,

Schaffner K.,

Urech J.,

Vischer E.

Publication year - 1961

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19610440714

Subject(s) - chemistry , pregnane , aspergillus ochraceus , stereochemistry , derivative (finance) , medicinal chemistry , mycotoxin , food science , ochratoxin a , financial economics , economics

11‐Oxygenated 18,20‐cyclo‐steroids have been prepared by two methods : 1. Irradiation of 3β, 11β‐diacetoxy‐20‐oxo‐5α‐pregnane and of 3‐ethylenedioxy‐11 α‐acetoxy‐20‐oxo‐Δ 5 ‐pregnene with ultraviolet light gave the corresponding (20S)‐20‐hydroxy‐18,20‐cyclo‐pregnane derivatives as major products. 2. Incubation of (20 S)‐3‐oxo‐20‐hydroxy‐Δ 4 ‐18, 20‐cyclo‐pregnene with an Aspergillus ochraceus W ILHELM culture furnished the corresponding 11 α‐hydroxy derivative.

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