{1-[2-[2-ethyl-4-(1-methylcarbamoyl-2-naphthalen-2-yl-ethyl)-piperazin-1-yl]-1-(4-fluorobenzyl)-2-oxo-ethyl carbamoyl]-1-methyl-ethyl}-carbamic acid tert-butyl ester 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 1.0h,
以62%的产率得到2-{4-[2-(2-amino-2-methyl-propionylamino)-3-(4-fluorophenyl)-propionyl]-3-ethyl-piperazine-1-yl}-N-methyl-3-naphthalen-2-yl-propionamide trifluoroacetate salt