title: Synthesis and cytostatic activity of substituted 6-phenylpurine bases and nucleosides: application of the Suzuki-Miyaura cross-coupling reactions of 6-chloropurine derivatives with phenylboronic acids.
abstract: The Suzuki-Miyaura reaction of protected 6-chloropurine and 2-amino-6-chloropurine bases and nucleosides with substituted phenylboronic acids led to the corresponding protected 6-(substituted phenyl)purine derivatives 6-9. Their deprotection yielded a series of substituted 6-phenylpurine bases and nucleosides 10-13. Significant cytostatic activity (IC(50) 0.25-20 micromol/L) in CCRF-CEM, HeLa, and L1210 cell lines was found for several 6-(4-X-substituted phenyl)purine ribonucleosides 12 (X = H, F, Cl, and OR), while the 6-phenylpurine and 2-amino-6-phenylpurine bases 10 and 11, as well as 2-amino-6-phenylpurine ribosides 13, were entirely inactive against these cell lines.
authors.affiliation: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ-16610 Prague 6, Czech Republic. hocek@uochb.cas.cz
authors.forename: M
authors.initials: M
authors.lastname: Hocek
authors.forename: A
authors.initials: A
authors.lastname: Holý
authors.forename: I
authors.initials: I
authors.lastname: Votruba
authors.forename: H
authors.initials: H
authors.lastname: Dvoráková
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001897:Boronic Acids / Q000138:chemical synthesis* / Q000494:pharmacology; D002470:Cell Survival / Q000187:drug effects; D006367:HeLa Cells; D006801:Humans; D007939:Leukemia L1210 / Q000188:drug therapy; D015459:Leukemia-Lymphoma, Adult T-Cell / Q000188:drug therapy; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D011687:Purines / Q000138:chemical synthesis* / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D001897:Boronic Acids; D011687:Purines