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K. Annen

Schering AG

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Publication

Featured researches published by K. Annen.

Angewandte Chemie | 1984

A Novel Entry to 17α-Bromo- and 17α-Iodoethynyl Steroids

Helmut Hofmeister; K. Annen; Henry Laurent; Rudolf Wiechert

Angewandte Chemie | 1984

Ein neuer Zugang zu 17α‐Brom‐ und 17α‐Iodethinyl‐Steroiden

Helmut Hofmeister; K. Annen; Henry Laurent; Rudolf Wiechert

Chemische Berichte | 1978

Eine neuartige einfache Dreiring‐Synthese

K. Annen; Helmut Hofmeister; Henry Laurent; Arne Seeger; Rudolf Wiechert

Chemische Berichte | 1978

Überführung von 17α‐Ethinyl‐17β‐nitrooxy‐Steroiden in 17α‐Hydroxy‐20‐oxopregnan‐Derivate

Helmut Hofmeister; K. Annen; Henry Laurent; Rudolf Wiechert

European Journal of Organic Chemistry | 1983

17-Pivalate in der Pregnanreihe

K. Annen; Helmut Hofmeister; Henry Laurent; Rudolf Wiechert

Chemische Berichte | 1980

Steroid‐Butyrolactone aus 3β,21‐Diacetoxy‐16α,17‐epoxy‐5‐pregnen‐20‐on

K. Annen; Helmut Hofmeister; Henry Laurent; Karl Petzoldt; Arne Seeger; Rudolf Wiechert

Archive | 1973

Anti-inflammatory pregnan-21-carboxylic acids - are substd 16-alpa-17-alpa-isopropylidene-dioxy 3,20-dioxo-pregn-4-ene and 1,4-diene-21-acid derivs

Henry Laurent; K. Annen; Rudolf Wiechert; Helmut Hofmeister; Hans Wendt

European Journal of Organic Chemistry | 1989

Steroide mit einer 17-Spiro-dithiolanon-Struktur

K. Annen; Helmut Hofmeister; Henry Laurent; Georg-Alexander Hoyer

Archive | 1984

Hydrocortisone and prednisolone derivatives

K. Annen; Henry Laurent; Helmut Hofmeister; Michael Dr. Töpert

European Journal of Organic Chemistry | 1982

Ein neuartiges Verfahren zur Überführung von 11β,17α,21-Trihydroxy-20-oxo-Steroiden in die 21-Chlor-20-oxo-Δ9(11),16-Derivate

K. Annen; Helmut Hofmeister; Henry Laurent; Rudolf Wiechert

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Collaboration

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Helmut Hofmeister

Schering AG

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Henry Laurent

Schering AG

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Rudolf Wiechert

Schering AG

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Arne Seeger

Schering AG

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Gerhard Cleve

Schering AG

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Karl Petzoldt

Schering AG

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G.-A. Hoyer

Schering AG

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Georg-Alexander Hoyer

Schering AG

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Christoph Herrmann

Schering AG

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Hans Wendt

Schering AG

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