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Alexander Hillisch, Werner Boidol, Wolfgang Schwede, Peter Esperling, Gerhard Sauer, Christa Hegele Hartung, Uwe Kollenkirchen, Karl Heinrich Fritzemeier: 18 Norsteroids as selectively active estrogens. Schering, Millen White Zelano & Branigan P C, October 25, 2005: US06958327 (26 worldwide citation)

The invention relates to novel 18-norsteroids (gonatrienes) of general formula (I), wherein R1, R2, R3, R6, R7, R8, R9, R11, R11′, R14, R15, R15′, R16, R17 and R17′ have the meaning cited in the description, and to the use of said compounds as pharmaceutical active ingredients. Said compounds exhibi ...


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Ralph Lipp, Henry Laurent, Clemens Gunther, Jutta Riedl, Peter Esperling, Ulrich Tauber: Agent for transdermal administration that contains gestodene esters. Schering Aktiengesellschaft, January 12, 1999: US05858394 (23 worldwide citation)

An agent for transdermal administration is described, which is characterized in that it contains gestodene esters with 1 to 20 carbon atoms in the ester radical optionally in combination with one or two estrogen(s).


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Henry Laurent, Peter Esperling, Kurt Hamp, Herbert Schneider, Helmut Wachtel: Chiral phenyldihydrofuranones as PDE-IV inhibitors. Schering Aktiengesellschaft, Millen White Zelano & Branigan, January 4, 2000: US06011060 (12 worldwide citation)

Described are racemic and enantiomerically pure chiral phenyldihydrofuranones, their preparation and their use in drugs (selective inhibition of the cAMP-specific phosphodiesterase IV).


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Klaus Nickisch, Henry Laurent, Peter Esperling, Dieter Bittler, Rudolf Wiechert, Wolfgang Losert: 7.alpha.-Substituted 3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones, process for their production, and pharmaceutical preparations containing same. Schering Aktiengesellschaft, Millen & White, December 17, 1985: US04559331 (4 worldwide citation)

Novel 7.alpha.-substituted 3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones of the formula ##STR1## wherein ##STR2## is a CC single or CC double bond or the group ##STR3## R.sup.7 is the group SR', R' being a hydrogen atom or a straight-chain or branched alkyl residue of 1-6 carbon atoms optionally s ...


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Thorsten Blume, Peter Esperling, Christa Hegele Hartung: Steroid compounds, use of these compounds for the preparation of meiosis-regulating medicaments and method for the preparation of these compounds. Schering, Novo Nordisk D S, Millen White Zelano & Branigan P C, July 12, 2005: US06916921

The present invention relates to steroid compounds of general formula X, which may advantageously be employed to stimulate meiosis in human oocytes, the steroid being specifically characterized by amino nitrogen bonded to C17 of the steroid skeleton via a spacer A.


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Rolf Bohlmann, Dieter Bittler, Hermann Kuenzer, Peter Esperling, Hans Peter Muhn, Karl Heinrich Fritzemeier, Ulrike Fuhrmann, Katja Prelle, Steffen Borden: 18-methyl-19-nor-17-pregn-4-ene-21,17-carbolactones, as well as pharmaceutical preparations that contain the latter. Bayer Intellectual Property, Millen White Zelano & Branigan P C, May 21, 2013: US08445469

A 18-Methyl-19-nor-17-pregn-4-ene-21,17-carbolactone of general formula I in which Z, R4, R6, R7 are as defined below with the proviso that the compound is not 18-Methyl-15β,16β-methylene-3-oxo-19-nor-17-pregn-4-ene-21,17-carbolactone.


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Henry Laurent, Peter Esperling, Walter Elger, Rolf Krattenmacher: 14.alpha., 16.alpha.-ethanoand 14.alpha., 16.alpha.-etheno-estratrienes. Schering Aktiengesellschaft, Millen White Zelano & Branigan, August 8, 1995: US05439902

The new 14.alpha.,16.alpha.-ethano- and 14.alpha.,16.alpha.-etheno-estratrienes of general formula I, ##STR1## are described, in which A-B means a C-C single bond or C-C double bond,