L-methionyl-L-aspartyl-2-amino-2-methylpropionamide hydrochloride 、
N-t-butoxycarbonyl-L-tryptophanyl-L-methionyl-L-aspartyl-D-alanine amide 以
水 为溶剂,
以there is obtained N-t-butoxycarbonyl-L-tryptophanyl-L-methionyl-L-aspartyl-2-amino-2-methylpropionamide containing 1/3 mole of water of hydration per mole的产率得到N-t-butoxycarbonyl-L-tryptophanyl-L-methionyl-L-aspartyl-2-amino-2-methylpropionamide