(2R,4S,5S)-5-[N-(t-butoxycarbonyl)-3-(4-thiazolyl)-L-alanyl]amino-N-butyl-6-cyclohexyl-4-hydroxy-2-methylhexanamide 、
2(R)-(4-methoxybenzyl)-3-(N-benzyl-N-methylaminocarbonyl)propionic acid 以to afford 146 mg of the title compound as a white powder, melting at 112°-114° C.的产率得到(2R,4S,5S)-N-butyl-6-cyclohexyl-4-hydroxy-5-{N-[2(R)-(4-methoxybenzyl)-3-(N-benzyl-N-methylaminocarbonyl)propionyl]-3-(4-thiazolyl)-L-alanyl}amino-2-methylhexanamide