(5-cyclopropylmethyl-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,5]diazepin-3-yl)-carbamic acid tert-butyl ester 、
碘甲烷 在
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.0h,
以98%的产率得到(5-cyclopropylmethyl-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,5]diazepin-3-yl)-carbamic acid tert-butyl ester