A 2,3-dihydroimidazo[2,1-b]oxazole compound repre- ... wherein R' is a hydrogen atom or lower-alkyl group; R² is a ... synthetic intermediate that is usable for producing an oxazole .... methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobu- ..... metal alkoxides such as sodium methoxide, sodium ethoxide, such as hexane ...
