Novel non-steroidal/non-anilide type androgen antagonists with an isoxazolone moiety |
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Authors: | Ishioka Toshiyasu Kubo Asako Koiso Yukiko Nagasawa Kazuo Itai Akiko Hashimoto Yuichi |
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Affiliation: | Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan. |
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Abstract: | 3-Substituted (Z)-4-(4-N,N-dialkylaminophenylmethylene)-5(4H)-isoxazolones and related compounds were designed and prepared as candidates for structurally novel androgen antagonists. Several compounds showed potent anti-androgenic activity as assessed by nuclear androgen receptor binding assay and growth inhibition assay using androgen-dependent Shionogi carcinoma cells SC-3. They were approximately 10--220 times more potent than flutamide in these assay systems. They also showed anti-androgenic activity toward prostate tumor cell line LNCaP, which has an aberrant nuclear androgen receptor. |
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