4-(N,N-di-n-pentylcarbamoyl)-1-(N,N-diphenylcarbamoyl)-2-(2-(N-methyl-N-(t-butoxycarbonyl)amino)-N-(methyl)ethylaminocarbonyl)piperazine 在
三氟乙酸 作用下,
以
苯甲醚 为溶剂,
以130 mg (98%)的产率得到(S)-4-(N,N-di-n-pentylcarbamoyl)-1-(N,N-diphenylcarbamoyl)-2-(2-(N-methylamino)-N-(methyl)ethylaminocarbonyl)piperazine trifluoroacetic acid salt