1-(4-chlorophenylsulfonyl)-3-((dimethylamino)methylene)-2-(pyrimidin-5-yl)piperidin-4-one 、
1-(4-chlorophenylsulfonyl)-5-((dimethylamino)methylene)-2-(pyrimidin-5-yl)piperidin-4-one 在
肼 作用下,
以
甲醇 、
溶剂黄146 为溶剂,
反应 18.0h,
生成 (rel R)-5-(4-chlorophenylsulfonyl)-6-(pyrimidin-5-yl)-4,5,6,7-tetrahydro-1H-pyrazoIo[4,3-c]pyridine 、 (rel S)-5-(4-chlorophenylsulfonyl)-6-(pyrimidin-5-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-C]pyridine 、 (rel R)-5-(4-chlorophenylsulfonyl)-4-(pyrirnidin-5-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-C]pyridine 、 (rel S)-5-(4-chIorophenylsulfonyl)-4-(pyrirnidin-5-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-C]pyridine