Imidazole derivatives of pyrrolidonic and piperidonic acids as potential inhibitors of human placental aromatase in vitro

Autor: Jacqueline Robert, Cuong Luu-Duc, Moomen Baroudi
Rok vydání: 1996
Předmět:
Zdroj: The Journal of Steroid Biochemistry and Molecular Biology. 57:73-77
ISSN: 0960-0760
DOI: 10.1016/0960-0760(95)00253-7
Popis: Inhibitory activities towards human placental aromatase of novel pyrrolidinone and piperidinone drugs were investigated and compared with those of aminoglutethimide (AG) in vitro . All compounds showing a stronger inhibitory effect than this of AG had the following common structural feature: an imidazole side-chain in C-3 position, with a substituted or non-substituted aromatic ring in the C-2 position and an aliphatic chain ( n -butyl or n -octyl) or a phenyl moiety on the nitrogen of the pyrrolidone or piperidone ring. When the C-3 side-chain did not bear any imidazole ring, no activity was observed. Respective K i values for the competitive inhibition exerted by the more potent inhibitors 10, 11, 13 and 21 with androstenedione as substrate were 19.2, 20.3, 16.8 and 15.4 μM, respectively ( K i AG = 77.0 μM).
Databáze: OpenAIRE