Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-09-14
1995-03-07
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549450, 549451, 556137, C07F 1500, C07D31700
Patent
active
053959477
ABSTRACT:
Disclosed herein are novel platinum(II) complexes having a potent anti-tumor activity which are represented by the formula (1), ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom or a C.sub.1-4 alkyl group, respectively, or jointly form a cycloalkane group together with the carbon atom attached thereto; two Xs jointly form a group represented by formula (a) or (b) wherein, R.sub.3 is a hydrogen atom or a methyl group; R.sub.4 and R.sub.5, which may be the same or different, are a hydrogen atom or a C.sub.1-4 alkyl group, respectively, or jointly form a cyclobutane together with the carbon thereto; and the absolute configurations at the respective chiral centers in the 4,5-bis(aminomethyl)-1,3-dioxolane moiety are (4R,5R) or (4S,5S); processes for the preparing the same; and their use for treating animal or human cancer. Further, disclosed herein are novel intermediates useful for the preparation of the platinum(II) complexes and processes for preparing said intermediates.
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Cho Yong B.
Gam Jongsik
Kim Dae-Kee
Kim Ganghyeok
Kim Hun T.
Dees Jos,e G.
Nazario-Gonzalez Porfirio
Sunkyong Industries Ltd.
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