5,7-二甲基-[1,2,4]噻唑并[1,5-a]嘧啶-2-甲醛 、 6-cyclopentyl-6-[2-(5-ethyl-2-hydroxy-phenyl)-ethyl]-dihydro-pyran-2,4-dione 在
dimethylamine borane 作用下,
以
甲醇 为溶剂,
反应 24.25h,
以to give the product (175 mg, 40%)的产率得到6-Cyclopentyl-3-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-ylmethyl)-6-[2-(5-ethyl-2-hydroxy-phenyl)-ethyl]-4-hydroxy-5,6-dihydro-pyran-2-one