Synthesis and Antitumor Activity of Enantiomerically Pure [1, 2-Diamino-1-(4-fluorophenyl) propane]dichloroplatinum(II) Complexes

✍ Scribed by Francois Dufrasne; Michael Gelbcke; Beate Schnurr; Ronald Gust

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 147 KB
• Volume: 335
• Category: Article
• ISSN: 0365-6233
• DOI: 10.1002/1521-4184(200205)335:5<229::aid-ardp229>3.0.co;2-q

✦ Synopsis

Enantiomerically pure 1, 2-diamino-1-(4-fluorophenyl)propanes were synthesized by stereospecific and stereoselective procedures by use of the (1R, 2S)- and (1S, 2R)-2-amino-1-(4-fluorophenyl)propanols (12a) as intermediates. The enantiomeric purity was determined by (1)H NMR spectroscopy after conversion of the propanolamines and the diamines with (1R)-myrtenal into mono- and diimines. For the coordination to platinum the diamines were reacted with K(2)PtCl(4). The resulting dichloroplatinum(II) complexes 4F-Ph/Me-PtCl(2) were tested for antiproliferative activity on the MCF-7 breast cancer cell line. (SS)- and (RR)-4F-Ph/Me-PtCl(2) produced the strongest inhibitory effect. Both complexes showed cytocidal effects, (SS)-4F-Ph/Me-PtCl(2) even in a concentration of 1 microM. The (1S, 2R)- and (1R, 2S)-configurated complexes were far less active (SS > RR > RS = SR) and comparable in this respect with the standard cisplatin.