[CH2:2]([Br:3])[CH2:4][Br:5].[Cl:6][CH:7]([CH2:8][CH2:9][CH2:10][CH2:11][CH3:12])[CH2:13][CH2:14][CH2:15][CH2:16][CH3:17].[Mg:1].[O:18]1[CH2:19][CH2:20][CH2:21][CH2:22]1>>[Cl-:6].[Mg+:1][CH:7]([CH2:8][CH2:9][CH2:10][CH2:11][CH3:12])[CH2:13][CH2:14][CH2:15][CH2:16][CH3:17]불러오는 중…