title: Aqua[1-(2,6-dichloro-4-hydroxyphenyl)-2- phenylethylenediamine](sulfato)platinum-(II) complexes with variable substituents in the 2-phenyl ring. 1. Synthesis and antitumor and estrogenic properties.
abstract: Erythro- and threo-configurated aqua[1-(2,6-dichloro-4-hydroxyphenyl)-2- phenylethylenediamine](sulfato)platinum(II) complexes with variable substituents in the 2-phenyl ring (2-PtSO4 to 9-PtSO4: H, 4-F, 3-OH, 4-OH, 2,6-F2, 2,6-Cl2, 2-F/4-OH, 2-Cl/4-OH) were synthesized and tested for estrogenic and antitumor activities. The ligands were obtained by a three-step reaction. The stilbenes were reacted with a mixture of IN3 and NaN3 to yield the respective 1,2-diazido-1,2-diphenylethanes. The subsequent reduction with LiAlH4 led to the corresponding 1,2-diphenyl-ethylenediamines. The (sulfato)platinum(II) complexes were synthesized by reaction of Ag2SO4 with the diiodo complexes, which had been obtained by coordination of the diamines with K2PtI4. Two complexes, erythro-8-PtSO4 and erythro-9-PtSO4, possess antitumor and estrogenic effects and are therefore of interest for the therapy of breast cancer.
authors.affiliation: Institut für Pharmazie, Universität Regensburg, Federal Republic of Germany.
authors.forename: R
authors.initials: R
authors.lastname: Gust
authors.forename: T
authors.initials: T
authors.lastname: Burgemeister
authors.forename: A
authors.initials: A
authors.lastname: Mannschreck
authors.forename: H
authors.initials: H
authors.lastname: Schönenberger
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000627:therapeutic use; D055598:Chemical Phenomena; D002621:Chemistry; D005029:Ethylenediamines / Q000138:chemical synthesis* / Q000627:therapeutic use; D005260:Female; D007941:Leukemia P388 / Q000188:drug therapy; D051379:Mice; D008811:Mice, Inbred DBA; D009944:Organoplatinum Compounds / Q000138:chemical synthesis* / Q000627:therapeutic use; D011959:Receptors, Estradiol / Q000187:drug effects / Q000378:metabolism; D013237:Stereoisomerism; D013329:Structure-Activity Relationship
chemical_list: D000970:Antineoplastic Agents; D005029:Ethylenediamines; D009944:Organoplatinum Compounds; D011959:Receptors, Estradiol