Novel Non-Steroidal/Non-Anilide Type Androgen Antagonists with an Isoxazolone Moiety
摘要:
3-Substitutcd (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. (C) 2002 Elsevier Science Ltd. All rights reserved.
Novel Non-Steroidal/Non-Anilide Type Androgen Antagonists with an Isoxazolone Moiety
摘要:
3-Substitutcd (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. (C) 2002 Elsevier Science Ltd. All rights reserved.
A novel formaldehyde-mediated condensation reaction of N,N-dialkyl aromatic amines and resonance-stabilized carbon nucleophiles is described. A condensation reaction between N,N-dimethylaniline (4) and ethyl acetoacetate (8) in the presence of formaldehyde in acetic acid took place to give 2-(4-dimethylaminobenzyl)-3-oxo butyric acid ethyl ester (9) together with the dimerization product 7 in 73 and