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Säure-katalysierte Umlagerungen von 15β,16β-methylen-17α-pregnen-21,17-carbolacton-Derivaten = Transpositions en milieu acide des dérivés de méthylène-15β,16β prégnène-17α carbolactones-21,17 = Acid catalysed rearrangements of 15β,16β-methylene-17α-pregrene-21,17-carbolactone derivativesNICKISCH, K; BITTLER, D; LAURENT, H et al.Tetrahedron letters. 1986, Vol 27, Num 45, pp 5463-5466, issn 0040-4039Article

SYNTHESE VON SPIRORENON, EINEN NEUEN STARK WIRKSAMEN ALDOSTERON-ANTAGONISTEN = SYNTHESE DE LA SPIRORENONE, UN NOUVEL ANTAGONISTE TRES PUISSANT DE L'ALDOSTERONEBITTLER D; HOFMEISTER H; LAURENT H et al.1982; ANGEW. CHEM.; ISSN 0044-8249; DEU; DA. 1982; VOL. 94; NO 9; PP. 718-719; BIBL. 5 REF.Article

Aldosterone antagonists. IV, Synthesis and activities of steroidal 6,6-ethylene-15,16-methylene 17-spirolactonesNICKISCH, K; BEIER, S; BITTLER, D et al.Journal of medicinal chemistry (Print). 1991, Vol 34, Num 8, pp 2464-2468, issn 0022-2623Article

Aldosterone antagonists. III: Synthesis and activities of steroidal 7α-(alkoxycarbonyl)-15,16-methylene spiroldactonesNICKISCH, K; BITTLER, D; LAURENT, H et al.Journal of medicinal chemistry (Print). 1990, Vol 33, Num 2, pp 509-513, issn 0022-2623Article

Synthese, spektroskopische und konformationelle Untersuchungen von 10α-Methyl-Steroid-Spirolactonen = Synthèse, études spectroscopique et conformationnelle des méthyl-10α spirolactones de stéroïdes = Synthesis, spectroscopic and conformational investigations of 10α-methyl steroid spirolactonesNICKISCH, K; BITTLER, D; CLEVE, G et al.Liebigs Annalen der Chemie. 1988, Num 6, pp 579-583, issn 0170-2041Article

Mespirenone and other 15,16-methylene-17-spirolactones, a new type of steroidal aldosterone antagonistsLOSERT, W; BITTLER, D; BUSE, M et al.Arzneimittel-Forschung. 1986, Vol 36, Num 11, pp 1583-1600, issn 0004-4172Article