[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]2[O:14][N:13]=[C:12]([C:15]3[CH:16]=[C:17]([CH2:21][CH2:22][N:23]([CH3:32])[CH2:24][C:25]([O:27]C(C)(C)C)=[O:26])[CH:18]=[CH:19][CH:20]=3)[N:11]=2)[CH:7]=[CH:6][C:5]=1[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=1[CH3:39].Cl>O1CCOCC1>[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]2[O:14][N:13]=[C:12]([C:15]3[CH:16]=[C:17]([CH2:21][CH2:22][N:23]([CH2:24][C:25]([OH:27])=[O:26])[CH3:32])[CH:18]=[CH:19][CH:20]=3)[N:11]=2)[CH:7]=[CH:6][C:5]=1[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=1[CH3:39]To tert-butyl N-[2-(3-{5-[2-(methoxymethyl)-2′-methylbiphenyl-4-yl]-1,2,4-oxadiazol-3-yl}phenyl)ethyl]-N-methylglycinate (86 mg, 0.15 mmol) was added a 4N solution of HCl in dioxane and the mixture was heated in a tube at 70° C. for 3 hours. The solvent was then removed in vacuo and the residue was purified by preparative HPLC to give the title compound as a pale yellow oil. LC/MS (Method A): 472 (M+H)+, 470 (M−H)−. HPLC (Method K) Rt=18.0 min (Purity: 92.2%).
読み込み中…