[Br:1][C:2]1[CH:26]=[CH:25][C:5]([NH:6][C:7]2[S:8][C:9]3[CH2:23][CH2:22][C:12]4[N:13]=[C:14]([NH:16][C:17]([NH:19][CH2:20][CH3:21])=[O:18])[S:15][C:11]=4[C:10]=3[N:24]=2)=[CH:4][CH:3]=1.C(C1C(=O)C(Cl)=C(Cl)C(=O)C=1C#N)#N>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([NH:6][C:7]2[S:8][C:9]3[CH:23]=[CH:22][C:12]4[N:13]=[C:14]([NH:16][C:17]([NH:19][CH2:20][CH3:21])=[O:18])[S:15][C:11]=4[C:10]=3[N:24]=2)=[CH:25][CH:26]=1To a suspension of N-[7-(4-bromoanilino)-4,5-dihydro[1,3]thiazolo[4′,5′: 3,4]benzo[d][1,3]thiazol-2-yl]-N′-ethylurea (27 mg, 0.060 mmol) in toluene (2.0 mL) was added DDQ (28 mg, 0.125 mmol). The reaction mixture was stirred at about 20° C. for about 2 hrs. The reaction mixture was pumped down in vacuo and purified by preparative HPLC. 7 mg (26%, 2 steps) pure product was isolated. LC/MS 448 and 450 (MH+); RP-HPLC 18.09 min.
読み込み中…