(S)-N'-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-ylacetyl)-5-methyl-6-oxo-5,6-dihydro-4H-imidazo[1,5-a]thieno[2,3-f][1,4]diazepine-3-carboxylic acid hydrazide 在
sodium carbonate 作用下,
以
PPA 、 (2S)-N-methyl-1-phenylpropan-2-amine hydrate 为溶剂,
以4.3 g (89%)的产率得到(S)-2-[5-(5-methyl-6-oxo-5,6-dihydro-4H-imidazo[1,5-a]thieno[2,3-f][1,4]diazepin-3-yl)-1,3,4-oxadiazol-2-ylmethyl]-2,3-dihydro-1H-isoindole-1,3-dione