27833-18-7Relevant academic research and scientific papers
Complete 1H and 13C NMR spectral assignment of 17-hydroxy epimeric sterols with planar A or A and B rings.
Ciuffreda,Casati,Manzocchi
, p. 360 - 363 (2007/10/03)
Complete 1H and 13C spectral assignments of 17beta- and 17alpha-hydroxy epimers of three biologically active sterols (boldenone, 3-methoxyestradiol and 3-methoxydihydroequilenin) were achieved making use of one- and two-dimensional NMR techniques (1D-HOHAHA, DEPT, COSY, NOESY, TOCSY, HSQC and COLOC). Copyright 2004 John Wiley & Sons, Ltd.
Reduction of steroidal ketones with amine - Boranes
Leontjev,Vasiljeva,Pivnitsky
, p. 703 - 708 (2007/10/03)
Complexes of secondary amines with borane, R2NH·BH 3, surpass sodium borohydride as reducing agents for saturated and unsaturated steroidal 3-, 12-, 17-, and 20-ketones as regards chemo- and regioselectivity and mildness of the reaction conditions. In the case of 12-ketones, stereoselectivity is also improved.
PREPARATION OF UNLABELLED AND 3H>-LABELLED EPITESTOSTERONE AND ITS METABOLITES
Kasal, Alexander,Fuksova, Kveta,Pouzar, Vladimir
, p. 600 - 611 (2007/10/02)
Cold as well as 3H>-labelled substrates and metabolites IX-XI, XV, XVI, XX-XXII, XXIV, XXV and XXVIII were prepared by catalytic hydrogenation of epitestosterone (VIII) and Λ1-dehydroepitestosterone (XIII).The key step in the preparation of compound XXVIII was reaction of 3β-tosylates XXVI and XXX with potassium nitrite in dimethyl sulfoxide.
