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Gregor Haffer

Schering AG

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Publication

Featured researches published by Gregor Haffer.

Chemische Berichte | 1976

Totalsynthese optisch aktiver Steroide, XIV: Synthese von Östradiol

Ulrich Eder; Heinz Gibian; Gregor Haffer; Günter Neef; Gerhard Sauer; Rudolf Wiechert

Angewandte Chemie | 1975

Synthesis of D-norgestrel.

Gerhard Sauer; Ulrich Eder; Gregor Haffer; Günter Neef; Rudolf Wiechert

Angewandte Chemie | 1975

Synthese von D‐Norgestrel

Gerhard Sauer; Ulrich Eder; Gregor Haffer; Günter Neef; Rudolf Wiechert

Archive | 1982

Novel ergolinyl compounds nitrogen-substituted in the 8-position, their preparation, and use as medicinal agents

Gregor Haffer; Gerhard Sauer; Helmut Wachtel; Herbert Dr Schneider; Ulrich Eder; Hans-Peter Lorenz

Chemische Berichte | 1978

Totalsynthese optisch aktiver Steroide, XVI: Darstellung von 1,3,17β‐Triacetoxy‐8α‐östra‐1,3,5(10)‐trien, einem dissoziierten Östrogen

Ulrich Eder; Gregor Haffer; Günter Neef; Klaus Prezewowsky; Gerhard Sauer; Rudolf Wiechert

Chemische Berichte | 1977

C-Homosteroide, I. C-Homo-9β-östrogene

Günter Neef; Ulrich Eder; Gregor Haffer; Gerhard Sauer; Rudolf Wiechert; Peter Schönholzer

Helvetica Chimica Acta | 1976

Totalsynthese optisch aktiver Steroide. XIII. Mitteilung. Synthese von 4,9(11)‐Androstadien‐3,17‐dion

Ulrich Eder; Gerhard Sauer; Gregor Haffer; Jürgen Ruppert; Rudolf Wiechert; A. Fürst; Werner Meier

Chemische Berichte | 1975

Totalsynthese optisch aktiver Steroide, XI. Synthese von (—)‐Des‐A‐Steroiden

Ulrich Eder; Gerhard Sauer; Jürgen Ruppert; Gregor Haffer; Rudolf Wiechert

Chemische Berichte | 1978

Zur Synthese von 20-Ketopregnan-21-säureestern aus 17-Ketosteroiden

Gregor Haffer; Ulrich Eder; Günter Neef; Gerhard Sauer; Rudolf Wiechert

Synthesis | 1986

Reduction of 8α-Substituted 9,10-Didehydroergolines

Gerhard Sauer; Gregor Haffer; Helmut Wachtel

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Collaboration

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Gerhard Sauer

Schering AG

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Rudolf Wiechert

Schering AG

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Ulrich Eder

Schering AG

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Günter Neef

Schering AG

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Klaus Nickisch

Schering AG

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Reiner Wierzchowski

Schering AG

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Georg-Alexander Hoyer

Schering AG

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Gerhard Cleve

Schering AG

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Helmut Wachtel

Schering AG

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Jürgen Ruppert

Schering AG

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