CpRu Complexes Containing Water Soluble Phosphane PTA and Natural Purines Adenine, Guanine and Theophylline: Synthesis, Characterization, and Antiproliferative Properties

Complexes [RuCp(Adeninate‐κ N9 )(PTA) 2 ] ( 1 ), [RuCp(Guaninate‐κ N9 )(PTA) 2 ] ( 2 ), [RuCp(Theophyllinate‐κ N7 )(PTA) 2 ] ( 3 ), [RuCp(Adeninate‐κ N9 )(PPh 3 )(PTA)] ( 4 ), [RuCp(Guaninate‐κ N9 )(PPh 3 )(PTA)] ( 5 ) and [RuCp(Theophyllinate‐κ N7 )(PPh 3 )(PTA)] ( 6 ) were synthesized and characterized by NMR spectroscopy, elemental analysis and FT‐IR (PTA = 1,3,5‐triaza‐7‐phosphaadamantane). Crystal structures of 1·H 2 O·3EtOH , 3·CH 3 COCH 3...