3'-isopropylbiphenyl-4-ol 、 toluene-4-sulfonic acid (S)-5-fluoromethyl-7-oxo-2,3-dihydro-7H-oxazolo[3,2-a]pyrimidin-2-ylmethyl ester 在
caesium carbonate 作用下,
以
乙腈 为溶剂,
反应 18.0h,
以50%的产率得到(S)-5-fluoromethyl-2-(3'-isopropylbiphenyl-4-yloxymethyl)-2,3-dihydro-oxazolo[3,2-a]pyrimidin-7-one