[CH3:1][O:2][C:3]1[CH:4]=[C:5](/[C:11](=[CH:14]/[C:15]2[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=2)/[C:12]#[N:13])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]>C(#N)C>[CH3:1][O:2][C:3]1[CH:4]=[C:5](/[C:11](=[CH:14]\[C:15]2[CH:16]=[CH:17][C:18]([OH:21])=[CH:19][CH:20]=2)/[C:12]#[N:13])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]Compound 1 (100 mg) was dissolved in acetonitrile, and the resultant solution was subjected to photoreaction by use of a high-pressure mercury lamp. The resultant reaction mixture was concentrated to dryness under reduced pressure, followed by purification by use of a silica gel column, to thereby produce the target product (41 mg, yield: 41%).
Wird geladen…