title: Hydantoin derivatives of L- and D-amino acids: synthesis and evaluation of their antiviral and antitumoral activity.
abstract: 3,5-Disubstituted hydantoin (1,3-imidazolidinedione) derivatives 5a-h were prepared by base induced cyclization of the corresponding N-(1-benzotriazolecarbonyl)-L- and D-amino acid amides 4a-h. Compounds 5a-h were evaluated for their cytostatic and antiviral activities. Among all the compounds evaluated, 3-benzhydryl-5-isopropyl hydantoin (5a) showed a weak but selective inhibitory effect against vaccinia virus (EC(50) = 16 microg/mL; selectivity index: 25). 3-Cyclohexyl-5-phenyl hydantoin (5g) showed inhibitory activity against cervical carcinoma (HeLa, IC(50) = 5.4 microM) and breast carcinoma (MCF-7, IC(50) = 2 microM), but also cytotoxic effects towards human normal fibroblasts (WI 38). On the contrary, the 3-benzhydryl-5-phenyl substituted hydantoin derivative 5h showed moderate inhibitory activity towards HeLa, MCF-7, pancreatic carcinoma (MiaPaCa-2), lung carcinoma (H 460) and colon carcinoma (SW 620) (IC(50) = 20-23 microM), but no effect on WI 38.
authors.affiliation: Department of Medicinal Chemistry, Faculty of Pharmacy and Biochemistry, A. Kovacića 1, HR-10000 Zagreb, Croatia. zrajic@pharma.hr
authors.forename: Zrinka
authors.initials: Z
authors.lastname: Rajic
authors.forename: Branka
authors.initials: B
authors.lastname: Zorc
authors.forename: Silvana
authors.initials: S
authors.lastname: Raic-Malic
authors.forename: Katja
authors.initials: K
authors.lastname: Ester
authors.forename: Marijeta
authors.initials: M
authors.lastname: Kralj
authors.forename: Kresimir
authors.initials: K
authors.lastname: Pavelic
authors.forename: Jan
authors.initials: J
authors.lastname: Balzarini
authors.forename: Erik
authors.initials: E
authors.lastname: De Clercq
authors.forename: Mladen
authors.initials: M
authors.lastname: Mintas
mesh_terms: D000596:Amino Acids / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000998:Antiviral Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D004354:Drug Screening Assays, Antitumor; D005347:Fibroblasts / Q000187:drug effects; D006801:Humans; D006827:Hydantoins / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D014780:Viruses / Q000187:drug effects
chemical_list: D000596:Amino Acids; D000970:Antineoplastic Agents; D000998:Antiviral Agents; D006827:Hydantoins