(S)-3-(9-methylthio-6-oxo-2,3,3a,4-tetrahydro-1H,6H-5,8,10,10b-tetraazabenzo[e]azulen-5-yl)benzoic hydrazide 、
原甲酸三乙酯 在
silica gel 作用下,
反应 24.0h,
以to give (S)-9-methylthio-5-[3-(1,3,4-oxadiazol-2-yl)phenyl]-1,2,3,3a,4,5-hexahydro-5,8,10,10b-tetraazabenzo[e]azulen-6-one (165 mg, 80%)的产率得到(S)-9-methylthio-5-[3-(1,3,4-oxadiazol-2-yl)phenyl]-1,2,3,3a,4,5-hexahydro-5,8,10,10b-tetraazabenzo[e]azulen-6-one