[C:1]([C:3](=[C:11]([C:20]1[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=1)[C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1)[CH2:4][CH2:5][C:6]([O:8]CC)=[O:7])#[N:2].[OH-].[Na+]>O1CCOCC1>[C:1]([C:3](=[C:11]([C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1)[C:20]1[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=1)[CH2:4][CH2:5][C:6]([OH:8])=[O:7])#[N:2]3.6 g or ethyl 4-cyano-5,5-bis(4-methoxyphenyl)-4-pentenoate was dissolved in 10 ml of dioxane and 3 ml of a 5N aqueous solution of NaOH was added thereto. The obtained mixture was stirred at 60° C. for five hours. After the completion of the reaction, the reaction mixture was acidified and extracted with ethyl acetate. Thus 3.2 g of the title compound having the following physicochemical properties was obtained. This product could be further purified by recrystallizing form ethyl acetate/hexane.
불러오는 중…