Methylamine → 3-Methoxyacetyl-1-methyl-5-(3-trifluoromethylphenyl)-4(1H)-pyridinone
反応式
[CH3:1][N:2]([CH3:23])[CH:3]=[C:4]([C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([C:19]([F:22])([F:21])[F:20])[CH:14]=1)[C:5](=[O:12])[CH2:6][C:7](=[O:11])[CH2:8][O:9][CH3:10].COC(OC)N(C)C.CN>>[CH3:10][O:9][CH2:8][C:7]([C:6]1[C:5](=[O:12])[C:4]([C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([C:19]([F:21])([F:20])[F:22])[CH:14]=2)=[CH:3][N:2]([CH3:1])[CH:23]=1)=[O:11]参加物
4
実験手順
A 1 g. portion of impure 1-dimethylamino-6-methoxy-2-(3-trifluoromethylphenyl)-1-hexene-3,5-dione was reacted with 10 ml. of N,N-dimethylformamide dimethyl acetal, and then with 5 ml. of 40% aqueous methylamine, as described in Preparation 1. The product was purified as described in that example, except that 1:1 ethyl acetate:dichloromethane was used as the eluent, to obtain 0.13 g. of the desired product, m.p. 104°, dec. Nmr analysis in DMSOd6 showed peaks at δ7.6-8.5 (m, 6H, aromatic); 4.8 (s, 2H, COCH2); 3.9 (s, 3H, N--CH3); 3.4 (s, 3H, OCH3).