(R)-7-(5-ethyl-1,3,4-thiadiazol-2-yl)-8-methyl-5-(4-nitrophenyl)-8,9-dihydro-7H-1,3-dioxolo[4,5-h][2,3]benzodiazepine 在
palladium 10% on activated carbon
potassium formate 作用下,
以
甲醇 、
水 为溶剂,
以47%的产率得到(R)-5-(4-aminophenyl)-7-(5-ethyl-1,3,4-thiadiazol-2-yl)-8-methyl-8,9-dihydro-7H-1,3-dioxolo[4,5-h][2,3]benzodiazepine