New analogs as androgen receptor and glucocorticoid receptor modulators
A compound, the technology of halogen atoms, applied in the field of dihydropyridine derivatives, can solve problems such as the treatment of cancer that has not been mentioned
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[1410] Preparation of dihydropyridine
[1411] Method A (Rampa, A et al., Forsch. 1992, 42, 1284).
Embodiment A1
[1412] Example A1: Methyl 5-acetyl-4-(benzo[b]thiophen-3-yl)-2,6-dimethyl-1,4-dihydro-pyridine-3-carboxylate
[1413]
[1414] 3-(Benzo[b]thiophen-3-ylmethylene)pentane-2,4-dione (0.24g, 0.98mmol, 1eq), methyl 3-oxobutyrate (0.158ml, 1.47mmol, 1.5eq) and 30% aqueous ammonium (0.62ml, 9.8mmol, 10eq) in i-PrOH (2ml) was heated for 12 hours. The solvent was removed under reduced pressure. The residue was taken up in water and extracted with dichloromethane and ethyl acetate. The combined organic layers were washed with brine, dried (Na 2 SO 4 ), filtered and concentrated, and used CH 2 Cl 2 The crude product was purified by flash column chromatography on silica gel with MeOH (1%) as eluent to give the title compound (114 mg, 25%) as a yellow solid.
[1415] 1 H-NMR (300MHz, CDCl 3 )δ=8.10(d, J=8.0Hz, 1H), 7.79(d, J=7.9Hz, 1H), 7.34(dt, J=24.0, 7.1Hz, 2H), 7.13(s, 1H), 6.27( bs, 1H), 5.47(s, 1H), 3.64(s, 3H), 2.34(s, 3H), 2.27(s, 3H), 2.14(s, 3H).
[1416] C 19 h 19...
Embodiment A4
[1418] Example A4: 5-Acetyl-4-(benzo[b]thiophen-3-yl)-2,6-dimethyl-1,4-dihydropyridine-3-carboxamide
[1419] Method A yielded the title compound (73 mg, 22%) as a yellow solid.
[1420] 1 H-NMR (300MHz, CDCl 3 )δ=8.05(d, J=7.7Hz, 1H), 7.76(d, J=7.6Hz, 1H), 7.29(dt, J=15.0, 7.0Hz, 2H), 7.09(s, 1H), 6.76( s, 1H), 5.65 (bs, 2H), 5.34 (s, 1H), 2.25 (s, 3H), 2.08 (s, 6H).
[1421] C 18 h 18 N 2 o 2 HRMS (IE) m / z calculated for S: 326.0910, found: 326.1011.
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