(2R,4S,5S)-5-tert-butoxycarbonylamino-4-(tert-butyldimethylsilyloxy)-2-methyl-6-phenylhexanoic acid 、 (S)-2-Amino-3-methyl-N-pyridin-4-ylmethyl-butyramide; compound with GENERIC INORGANIC NEUTRAL COMPONENT 在
1-羟基苯并三唑 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
四氢呋喃 为溶剂,
以87%的产率得到((1S,2S,4R)-1-Benzyl-2-(tert-butyl-dimethyl-silanyloxy)-4-{(S)-2-methyl-1-[(pyridin-4-ylmethyl)-carbamoyl]-propylcarbamoyl}-pentyl)-carbamic acid tert-butyl ester