3,4-Bis(benzyloxy)-6-{[6-(trifluoromethyl)pyridin-3-yl]ethynyl}pyridazine → HCID 178518823、化合物
反応式
C([O:8][C:9]1[N:10]=[N:11][C:12]([C:23]#[C:24][C:25]2[CH:26]=[N:27][C:28]([C:31]([F:34])([F:33])[F:32])=[CH:29][CH:30]=2)=[CH:13][C:14]=1[O:15]CC1C=CC=CC=1)C1C=CC=CC=1>CO.O1CCCC1>[OH:15][C:14]1[C:9](=[O:8])[NH:10][N:11]=[C:12]([CH2:23][CH2:24][C:25]2[CH:26]=[N:27][C:28]([C:31]([F:32])([F:33])[F:34])=[CH:29][CH:30]=2)[CH:13]=1参加物
4
実験手順
Prepared as described for 4-hydroxy-6-(2-phenethyl)pyridazin-3(2H)-one (Example 1) from 3,4-bis(benzyloxy)-6-{[6-(trifluoromethyl)pyridin-3-yl]ethynyl}pyridazine (Intermediate 9) except that the reaction was carried out in a mixture of methanol and tetrahydrofuran (1:1). The resulting crude product was purified by preparative HPLC under acidic conditions to afford 4-hydroxy-6-{2-[6-(trifluoromethyl)pyridin-3-yl]ethyl}pyridazin-3(2H)-one as a cream solid (26% yield).