[C:1]([C:3]1[C:4]2[N:5]([C:21]([CH:24]=O)=[N:22][N:23]=2)[CH:6]=[CH:7][C:8]=1[N:9]1[CH2:14][CH2:13][CH:12]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:11][CH2:10]1)#[N:2].[NH:26]1[CH2:31][CH2:30][O:29][CH2:28][CH2:27]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[N:26]1([CH2:24][C:21]2[N:5]3[CH:6]=[CH:7][C:8]([N:9]4[CH2:14][CH2:13][CH:12]([C:15]5[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=5)[CH2:11][CH2:10]4)=[C:3]([C:1]#[N:2])[C:4]3=[N:23][N:22]=2)[CH2:31][CH2:30][O:29][CH2:28][CH2:27]1To a solution of D9 (0.065 g, 0.196 mmol) in DCM (2.5 ml) were added morpholine (0.026 g, 0.294 mmol) and sodium triacetoxy-borohydride (0.062 mg, 0.294 mmol). The resulting mixture was stirred at r.t. for 1 day. The reaction mixture was washed with H2O, dried (MgSO4) and concentrated in vacuo. The crude product thus obtained was purified by column chromatography (silica gel; DCM/MeOH up to 3% as eluent). The desired fractions were collected and concentrated in vacuo to yield final compound E11 (0.04 g, 51%) as a white solid.
불러오는 중…