[CH2:1]([SH:2])[CH3:3].[CH3:6][O:7][c:8]1[cH:9][cH:10][c:11]2[c:12]([cH:18]1)[C:13]([CH3:16])([CH3:17])[CH2:14][O:15]2.[H-:4].[Na+:5].[O:20]=[CH:21][N:22]([CH3:23])[CH3:24].[OH2:19]>>[OH:7][c:8]1[cH:9][cH:10][c:11]2[c:12]([cH:18]1)[C:13]([CH3:16])([CH3:17])[CH2:14][O:15]2불러오는 중…